WIP: sxmo: port to systemd

this is exactly how it presently appears upstream (less shebang/comment changes)

.gitignore

@@ -1,2 +1,5 @@
+/keep
 result
+result-*
 /secrets/local.nix
+/working

README.md

@@ -4,17 +4,35 @@ this is the top-level repo from which i configure/deploy all my NixOS machines:
 - desktop
 - laptop
 - server
-- mobile phone
+- mobile phone (Pinephone)
 
-i enjoy a monorepo approach. this repo references [nixpkgs][nixpkgs], a couple 3rd party
+everything outside of <./hosts/> and <./secrets/> is intended for export, to be importable for use by 3rd parties.
-nix modules like [sops][sops], the sources for [uninsane.org][uninsane-org], and that's
+the only hard dependency for my exported pkgs/modules should be [nixpkgs][nixpkgs].
-about it. custom derivations and modules (some of which i try to upstream) live
+building <./hosts/> will require [sops][sops].
-directly here; even the sources for those packages is often kept here too.
+
+you might specifically be interested in these files (elaborated further in #key-points-of-interest):
+- [`sxmo-utils-latest`](./pkgs/additional/sxmo-utils/default.nix)
+  - [example SXMO deployment](./hosts/modules/gui/sxmo/default.nix)
+- [my implementation of impermanence](./modules/persist/default.nix)
+- my way of deploying dotfiles/configuring programs per-user:
+  - <./modules/fs/default.nix>
+  - <./modules/programs.nix>
+  - <./modules/users.nix>
 
 [nixpkgs]: https://github.com/NixOS/nixpkgs
 [sops]: https://github.com/Mic92/sops-nix
 [uninsane-org]: https://uninsane.org
 
+## Using This Repo In Your Own Config
+
+this should be a pretty "standard" flake. just reference it, and import either
+- `nixosModules.sane` (for the modules)
+- `overlays.pkgs` (for the packages)
+
+or follow the instructions [here][NUR] to use it via the Nix User Repositories.
+
+[NUR]: https://nur.nix-community.org/
+
 ## Layout
 - `doc/`
     - instructions for tasks i find myself doing semi-occasionally in this repo.
@@ -90,12 +108,6 @@ them being factored out of my config, message me and we could work to make that
 
 [home-manager]: https://github.com/nix-community/home-manager
 
-## Using This Repo In Your Own Config
-
-this should be a pretty "standard" flake. just reference it, and import either
-- `nixosModules.sane` (for the modules)
-- `overlays.pkgs` (for the packages)
-
 ## Mirrors
 
 this repo exists in a few known locations:

TODO.md

@@ -12,7 +12,7 @@
 
 ### roles
 - allow any host to take the role of `uninsane.org`
-    - will make it easier to test new services?
+  - will make it easier to test new services?
 
 ### upstreaming
 - split out a sxmo module usable by NUR consumers
@@ -23,41 +23,78 @@
 - REVIEW/integrate jellyfin dataDir config: <https://github.com/NixOS/nixpkgs/pull/233617>
 - remove `libsForQt5.callPackage` broadly: <https://github.com/NixOS/nixpkgs/issues/180841>
 
+#### upstreaming to non-nixpkgs repos
+- gtk: build schemas even on cross compilation: <https://github.com/NixOS/nixpkgs/pull/247844>
+- sxmo: add new app entries
+
 
 ## IMPROVEMENTS:
 ### security/resilience
 - validate duplicity backups!
 - encrypt more ~ dirs (~/archives, ~/records, ..?)
-    - best to do this after i know for sure i have good backups
+  - best to do this after i know for sure i have good backups
 - have `sane.programs` be wrapped such that they run in a cgroup?
-    - at least, only give them access to the portion of the fs they *need*.
+  - at least, only give them access to the portion of the fs they *need*.
-    - Android takes approach of giving each app its own user: could hack that in here.
+  - Android takes approach of giving each app its own user: could hack that in here.
-    - **systemd-run** takes a command and runs it in a temporary scope (cgroup)
+  - **systemd-run** takes a command and runs it in a temporary scope (cgroup)
-      - presumably uses the same options as systemd services
+    - presumably uses the same options as systemd services
-      - see e.g. <https://github.com/NixOS/nixpkgs/issues/113903#issuecomment-857296349>
+    - see e.g. <https://github.com/NixOS/nixpkgs/issues/113903#issuecomment-857296349>
-    - flatpak does this, somehow
+  - flatpak does this, somehow
-    - apparmor?  SElinux?  (desktop) "portals"?
+  - apparmor?  SElinux?  (desktop) "portals"?
-    - see Spectrum OS; Alyssa Ross; etc
+  - see Spectrum OS; Alyssa Ross; etc
-    - bubblewrap-based sandboxing: <https://github.com/nixpak/nixpak>
+  - bubblewrap-based sandboxing: <https://github.com/nixpak/nixpak>
 - canaries for important services
-    - e.g. daily email checks; daily backup checks
+  - e.g. daily email checks; daily backup checks
-    - integrate `nix check` into Gitea actions?
+  - integrate `nix check` into Gitea actions?
 
 ### user experience
+#### moby
+- fix cpuidle (gets better power consumption): <https://xnux.eu/log/077.html>
+- install apps:
+  - display QR codes for WiFi endpoints: <https://linuxphoneapps.org/apps/noappid.wisperwind.wifi2qr/>
+  - shopping list: <https://linuxphoneapps.org/apps/ro.hume.cosmin.shoppinglist/>
+  - offline Wikipedia
+- SwayNC:
+  - don't show MPRIS if no players detected
+    - this is a problem of playerctld, i guess
+  - add option to change audio output
+  - fix colors (red alert) to match overall theme
+- moby: tune GPS
+  - run only geoclue, and not gpsd, to save power?
+  - tune QGPS setting in eg25-control, for less jitter?
+  - direct mepo to prefer gpsd, with fallback to geoclue, for better accuracy?
+  - configure geoclue to do some smoothing?
+  - manually do smoothing, as some layer between mepo and geoclue/gpsd?
+- moby: show battery state on ssh login
+- moby: improve gPodder launch time
+- sxmo: port to swaybar like i use on desktop
+  - users in #sxmo claim it's way better perf
+- sxmo: fix youtube scripts (package youtube-cli)
+- sxmo: don't put all deps on PATH
+  - maybe: use resholve to hard-code them
+    - this is the most "correct", but least patchable
+  - maybe: express each invocation as a function in sxmo_common.sh
+    - this will require some patching to handle `exec <foo>` style
+  - maybe: save original PATH and reset it before invoking user files
+- moby: theme GTK apps (i.e. non-adwaita styles)
+  - combine multiple icon themes to get one which has the full icon set?
+  - get adwaita-icon-theme to ship everything even when cross-compiled?
+  - especially, make the menubar collapsible
+  - try Gradience tool specifically for theming adwaita? <https://linuxphoneapps.org/apps/com.github.gradienceteam.gradience/>
+- phog: remove the gnome-shell runtime dependency to save hella closure size
+
+#### non-moby
 - neovim: set up language server (lsp; rnix-lsp; nvim-lspconfig)
 - Helix: make copy-to-system clipboard be the default
 - firefox/librewolf: persist history
   - just not cookies or tabs
-- moby: improve gPodder launch time
-- moby: theme GTK apps (i.e. non-adwaita styles)
-  - especially, make the menubar collapsible
-  - try Gradience tool specifically for theming adwaita? <https://linuxphoneapps.org/apps/com.github.gradienceteam.gradience/>
 - package Nix/NixOS docs for Zeal
-    - install [doc-browser](https://github.com/qwfy/doc-browser)
+  - install [doc-browser](https://github.com/qwfy/doc-browser)
-    - this supports both dash (zeal) *and* the datasets from <https://devdocs.io> (which includes nix!)
+  - this supports both dash (zeal) *and* the datasets from <https://devdocs.io> (which includes nix!)
-    - install [devhelp](https://wiki.gnome.org/Apps/Devhelp)  (gnome)
+  - install [devhelp](https://wiki.gnome.org/Apps/Devhelp)  (gnome)
 - have xdg-open parse `<repo:...> URIs (or adjust them so that it _can_ parse)
 - sane-bt-search: show details like 5.1 vs stereo, h264 vs h265
+  - maybe just color these "keywords" in all search results?
 - uninsane.org: make URLs relative to allow local use (and as offline homepage)
 - email: fix so that local mail doesn't go to junk
   - git sendmail flow adds the DKIM signatures, but gets delivered locally w/o having the sig checked, so goes into Junk
@@ -65,17 +102,19 @@
 
 ### perf
 - add `pkgs.impure-cached.<foo>` package set to build things with ccache enabled
-    - every package here can be auto-generated, and marked with some env var so that it doesn't pollute the pure package set
+  - every package here can be auto-generated, and marked with some env var so that it doesn't pollute the pure package set
-    - would be super handy for package prototyping!
+  - would be super handy for package prototyping!
 - why does nixos-rebuild switch take 5 minutes when net is flakey?
-    - trying to auto-mount servo?
+  - trying to auto-mount servo?
-    - something to do with systemd services restarting/stalling
+  - something to do with systemd services restarting/stalling
-    - maybe wireguard & its refresh operation, specifically?
+  - maybe wireguard & its refresh operation, specifically?
 - get moby to build without binfmt emulation (i.e. make all emulation explicit)
   - then i can distribute builds across servo + desko, and also allow servo to pull packages from desko w/o worrying about purity
 
 
 ## NEW FEATURES:
 - migrate MAME cabinet to nix
-    - boot it from PXE from servo?
+  - boot it from PXE from servo?
+- deploy to new server, and use it as a remote builder
 - enable IPv6
+- package lemonade lemmy app: <https://linuxphoneapps.org/apps/ml.mdwalters.lemonade/>

default.nix

@@ -0,0 +1,9 @@
+# limited, non-flake interface to this repo.
+# this file exposes the same view into `pkgs` which the flake would see when evaluated.
+#
+# the primary purpose of this file is so i can run `updateScript`s which expect
+# the root to be `default.nix`
+{ pkgs ? import <nixpkgs> {} }:
+pkgs.appendOverlays [
+  (import ./overlays/all.nix)
+]

flake.lock

@@ -21,11 +21,11 @@
     "mobile-nixos": {
       "flake": false,
       "locked": {
-        "lastModified": 1690059310,
+        "lastModified": 1696124168,
-        "narHash": "sha256-4zcoDp8wwZVfGSzXltC5x+eH4kDWC/eJpyQNgr7shAA=",
+        "narHash": "sha256-EzGHYAR7rozQQLZEHbKEcb5VpUFGoxwEsM0OWfW4wqU=",
         "owner": "nixos",
         "repo": "mobile-nixos",
-        "rev": "56fc9f9619f305f0865354975a98d22410eed127",
+        "rev": "7cee346c3f8e73b25b1cfbf7a086a7652c11e0f3",
         "type": "github"
       },
       "original": {
@@ -34,46 +34,13 @@
         "type": "github"
       }
     },
-    "nix-serve": {
-      "inputs": {
-        "nixpkgs": "nixpkgs"
-      },
-      "locked": {
-        "lastModified": 1687251388,
-        "narHash": "sha256-E9cVlgeCvzPbA/G3mCDCzz8TdRwXyGYzIjmwcvIfghg=",
-        "owner": "edolstra",
-        "repo": "nix-serve",
-        "rev": "d6df5bd8584f37e22cff627db2fc4058a4aab5ee",
-        "type": "github"
-      },
-      "original": {
-        "owner": "edolstra",
-        "repo": "nix-serve",
-        "type": "github"
-      }
-    },
-    "nixpkgs": {
-      "locked": {
-        "lastModified": 1606086654,
-        "narHash": "sha256-VFl+3eGIMqNp7cyOMJ6TjM/+UcsLKtodKoYexrlTJMI=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "19db3e5ea2777daa874563b5986288151f502e27",
-        "type": "github"
-      },
-      "original": {
-        "id": "nixpkgs",
-        "ref": "nixos-20.09",
-        "type": "indirect"
-      }
-    },
     "nixpkgs-stable": {
       "locked": {
-        "lastModified": 1690066826,
+        "lastModified": 1696123266,
-        "narHash": "sha256-6L2qb+Zc0BFkh72OS9uuX637gniOjzU6qCDBpjB2LGY=",
+        "narHash": "sha256-S6MZEneQeE4M/E/C8SMnr7B7oBnjH/hbm96Kak5hAAI=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "ce45b591975d070044ca24e3003c830d26fea1c8",
+        "rev": "dbe90e63a36762f1fbde546e26a84af774a32455",
         "type": "github"
       },
       "original": {
@@ -85,11 +52,11 @@
     },
     "nixpkgs-unpatched": {
       "locked": {
-        "lastModified": 1691006197,
+        "lastModified": 1696375444,
-        "narHash": "sha256-DbtxVWPt+ZP5W0Usg7jAyTomIM//c3Jtfa59Ht7AV8s=",
+        "narHash": "sha256-Sv0ICt/pXfpnFhTGYTsX6lUr1SljnuXWejYTI2ZqHa4=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "66aedfd010204949cb225cf749be08cb13ce1813",
+        "rev": "81e8f48ebdecf07aab321182011b067aafc78896",
         "type": "github"
       },
       "original": {
@@ -102,7 +69,6 @@
     "root": {
       "inputs": {
         "mobile-nixos": "mobile-nixos",
-        "nix-serve": "nix-serve",
         "nixpkgs-unpatched": "nixpkgs-unpatched",
         "sops-nix": "sops-nix",
         "uninsane-dot-org": "uninsane-dot-org"
@@ -116,11 +82,11 @@
         "nixpkgs-stable": "nixpkgs-stable"
       },
       "locked": {
-        "lastModified": 1690199016,
+        "lastModified": 1696320910,
-        "narHash": "sha256-yTLL72q6aqGmzHq+C3rDp3rIjno7EJZkFLof6Ika7cE=",
+        "narHash": "sha256-fbuEc6wylH+0VxG48lhPBK+SQJHfo2lusUwWHZNipIM=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "c36df4fe4bf4bb87759b1891cab21e7a05219500",
+        "rev": "746c7fa1a64c1671a4bf287737c27fdc7101c4c2",
         "type": "github"
       },
       "original": {
@@ -152,11 +118,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1691106178,
+        "lastModified": 1696306988,
-        "narHash": "sha256-3mZ9gTvMpbZA9ea9ovoQpn2wKuQY0QZ7MDdEjArYdAQ=",
+        "narHash": "sha256-I/OyJxIxu0n5h1eFqwVw0C6wTN3ewBXp2lGAdo1ur70=",
         "ref": "refs/heads/master",
-        "rev": "f4d91aa201b6e49af690f250d4786bd1d8b4dcfd",
+        "rev": "1f588493031168d92a1e60705f26aaf4b2cdc07e",
-        "revCount": 205,
+        "revCount": 208,
         "type": "git",
         "url": "https://git.uninsane.org/colin/uninsane"
       },

flake.nix

@@ -4,6 +4,8 @@
 #   - this is marginally the case with schemes like `github:nixos/nixpkgs`.
 #   - given the *existing* `git+https://` scheme, i propose expressing github URLs similarly:
 #     - `github+https://github.com/nixos/nixpkgs/tree/nixos-22.11`
+#     - this would allow for the same optimizations as today's `github:nixos/nixpkgs`, but without obscuring the source.
+#       a code reader could view the source being referenced simply by clicking the https:// portion of that URI.
 # - need some way to apply local patches to inputs.
 #
 #
@@ -46,24 +48,23 @@
 
     mobile-nixos = {
       # <https://github.com/nixos/mobile-nixos>
+      # only used for building disk images, not relevant after deployment
       url = "github:nixos/mobile-nixos";
       flake = false;
     };
     sops-nix = {
       # <https://github.com/Mic92/sops-nix>
+      # used to distribute secrets to my hosts
       url = "github:Mic92/sops-nix";
       # inputs.nixpkgs.follows = "nixpkgs";
       inputs.nixpkgs.follows = "nixpkgs-unpatched";
     };
     uninsane-dot-org = {
+      # provides the package to deploy <https://uninsane.org>, used only when building the servo host
       url = "git+https://git.uninsane.org/colin/uninsane";
       # inputs.nixpkgs.follows = "nixpkgs";
       inputs.nixpkgs.follows = "nixpkgs-unpatched";
     };
-    nix-serve = {
-      # <https://github.com/edolstra/nix-serve>
-      url = "github:edolstra/nix-serve";
-    };
   };
 
   outputs = {
@@ -72,21 +73,37 @@
     mobile-nixos,
     sops-nix,
     uninsane-dot-org,
-    nix-serve,
     ...
   }@inputs:
     let
       inherit (builtins) attrNames elem listToAttrs map mapAttrs;
+      # redefine some nixpkgs `lib` functions to avoid the infinite recursion
+      # of if we tried to use patched `nixpkgs.lib` as part of the patching process.
       mapAttrs' = f: set:
         listToAttrs (map (attr: f attr set.${attr}) (attrNames set));
+      optionalAttrs = cond: attrs: if cond then attrs else {};
       # mapAttrs but without the `name` argument
       mapAttrValues = f: mapAttrs (_: f);
+
       # rather than apply our nixpkgs patches as a flake input, do that here instead.
       # this (temporarily?) resolves the bad UX wherein a subflake residing in the same git
       # repo as the main flake causes the main flake to have an unstable hash.
       nixpkgs = (import ./nixpatches/flake.nix).outputs {
         self = nixpkgs;
         nixpkgs = nixpkgs-unpatched;
+      } // {
+        # provide values that nixpkgs ordinarily sources from the flake.lock file,
+        # inaccessible to it here because of the import-from-derivation.
+        # rev and shortRev seem to not always exist (e.g. if the working tree is dirty),
+        # so those are made conditional.
+        #
+        # these values impact the name of a produced nixos system. having date/rev in the
+        # `readlink /run/current-system` store path helps debuggability.
+        inherit (self) lastModifiedDate lastModified;
+      } // optionalAttrs (self ? rev) {
+        inherit (self) rev;
+      } // optionalAttrs (self ? shortRev) {
+        inherit (self) shortRev;
       };
 
       nixpkgsCompiledBy = system: nixpkgs.legacyPackages."${system}";
@@ -184,17 +201,9 @@
           let
             mobile = (import "${mobile-nixos}/overlay/overlay.nix");
             uninsane = uninsane-dot-org.overlay;
-            # nix-serve' = nix-serve.overlay;
-            nix-serve' = next: prev: {
-              # XXX(2023/03/02): upstream isn't compatible with modern `nix`. probably the perl bindings.
-              # - we use the package built against `nixpkgs` specified in its flake rather than use its overlay,
-              #   to get around this.
-              inherit (nix-serve.packages."${next.system}") nix-serve;
-            };
           in
             (mobile final prev)
             // (uninsane final prev)
-            // (nix-serve' final prev)
           ;
       };
 
@@ -244,6 +253,7 @@
       apps."x86_64-linux" =
         let
           pkgs = self.legacyPackages."x86_64-linux";
+          sanePkgs = import ./pkgs { inherit pkgs; };
           deployScript = host: addr: action: pkgs.writeShellScript "deploy-${host}" ''
             nix build '.#nixosConfigurations.${host}.config.system.build.toplevel' --out-link ./result-${host} $@
             sudo nix sign-paths -r -k /run/secrets/nix_serve_privkey $(readlink ./result-${host})
@@ -253,6 +263,59 @@
             # let the user handle that edge case by re-running this whole command
             nixos-rebuild --flake '.#${host}' ${action} --target-host colin@${addr} --use-remote-sudo $@
           '';
+
+          # pkg updating.
+          # a cleaner alternative lives here: <https://discourse.nixos.org/t/how-can-i-run-the-updatescript-of-personal-packages/25274/2>
+          mkUpdater = attrPath: {
+            type = "app";
+            program = let
+              pkg = pkgs.lib.getAttrFromPath attrPath sanePkgs;
+              strAttrPath = pkgs.lib.concatStringsSep "." attrPath;
+              commandArgv = pkg.updateScript.command or pkg.updateScript;
+              command = pkgs.lib.escapeShellArgs commandArgv;
+            in builtins.toString (pkgs.writeShellScript "update-${strAttrPath}" ''
+              export UPDATE_NIX_NAME=${pkg.name}
+              export UPDATE_NIX_PNAME=${pkg.pname}
+              export UPDATE_NIX_OLD_VERSION=${pkg.version}
+              export UPDATE_NIX_ATTR_PATH=${strAttrPath}
+              ${command}
+            '');
+          };
+          mkUpdatersNoAliases = opts: basePath: pkgs.lib.concatMapAttrs
+            (name: pkg:
+              if pkg.recurseForDerivations or false then {
+                "${name}" = mkUpdaters opts (basePath ++ [ name ]);
+              } else if pkg.updateScript or null != null then {
+                "${name}" = mkUpdater (basePath ++ [ name ]);
+              } else {}
+            )
+            (pkgs.lib.getAttrFromPath basePath sanePkgs);
+          mkUpdaters = { ignore ? [] }@opts: basePath:
+            let
+              updaters = mkUpdatersNoAliases opts basePath;
+              invokeUpdater = name: pkg:
+                let
+                  fullPath = basePath ++ [ name ];
+                  doUpdateByDefault = !builtins.elem fullPath ignore;
+
+                  # in case `name` has a `.` in it, we have to quote it
+                  escapedPath = builtins.map (p: ''"${p}"'') fullPath;
+                  updatePath = builtins.concatStringsSep "." ([ "update" "pkgs" ] ++ escapedPath);
+                in pkgs.lib.optionalString doUpdateByDefault (
+                  pkgs.lib.escapeShellArgs [
+                    "nix" "run" ".#${updatePath}"
+                  ]
+                );
+            in {
+              type = "app";
+              program = builtins.toString (pkgs.writeShellScript
+                (builtins.concatStringsSep "-" (["update"] ++ basePath))
+                (builtins.concatStringsSep
+                  "\n"
+                  (pkgs.lib.mapAttrsToList invokeUpdater updaters)
+                )
+              );
+            } // updaters;
         in {
           help = {
             type = "app";
@@ -261,24 +324,28 @@
                 commands:
                 - `nix run '.#help'`
                   - show this message
-                - `nix run '.#update-feeds'`
+                - `nix run '.#update.pkgs'`
+                  - updates every package
+                - `nix run '.#update.feeds'`
                   - updates metadata for all feeds
                 - `nix run '.#init-feed' <url>`
                 - `nix run '.#deploy-{lappy,moby,moby-test,servo}' [nixos-rebuild args ...]`
-                - `nix run '.#check-nur'`
+                - `nix run '.#check'`
+                  - make sure all systems build; NUR evaluates
               '';
             in builtins.toString (pkgs.writeShellScript "nixos-config-help" ''
               cat ${helpMsg}
+              echo ""
+              echo "complete flake structure:"
+              nix flake show --option allow-import-from-derivation true
             '');
           };
-          update-feeds = {
+          update.pkgs = mkUpdaters { ignore = [ ["feeds"] ]; } [];
-            type = "app";
+          update.feeds = mkUpdaters {} [ "feeds" ];
-            program = "${pkgs.feeds.updateScript}";
-          };
 
           init-feed = {
             type = "app";
-            program = "${pkgs.feeds.initFeedScript}";
+            program = "${pkgs.feeds.init-feed}";
           };
 
           deploy-lappy = {
@@ -298,7 +365,40 @@
             program = ''${deployScript "servo" "servo" "switch"}'';
           };
 
-          check-nur = {
+          sync-moby = {
+            # copy music from the current device to moby
+            # TODO: should i actually sync from /mnt/servo-media/Music instead of the local drive?
+            type = "app";
+            program = builtins.toString (pkgs.writeShellScript "sync-to-moby" ''
+              sudo mount /mnt/moby-home
+              ${pkgs.sane-scripts.sync-music}/bin/sane-sync-music ~/Music /mnt/moby-home/Music
+            '');
+          };
+
+          sync-lappy = {
+            # copy music from servo to lappy
+            # can run this from any device that has ssh access to lappy
+            type = "app";
+            program = builtins.toString (pkgs.writeShellScript "sync-to-lappy" ''
+              sudo mount /mnt/lappy-home
+              ${pkgs.sane-scripts.sync-music}/bin/sane-sync-music /mnt/servo-media/Music /mnt/lappy-home/Music
+            '');
+          };
+
+          check = {
+            type = "app";
+            program = builtins.toString (pkgs.writeShellScript "check-all" ''
+              nix run '.#check.nur'
+              RC0=$?
+              nix run '.#check.host-configs'
+              RC1=$?
+              echo "nur: $RC0"
+              echo "host-configs: $RC1"
+              exit $(($RC0 | $RC1))
+            '');
+          };
+
+          check.nur = {
             # `nix run '.#check-nur'`
             # validates that my repo can be included in the Nix User Repository
             type = "app";
@@ -310,9 +410,35 @@
                 --option allow-import-from-derivation true \
                 --drv-path --show-trace \
                 -I nixpkgs=$(nix-instantiate --find-file nixpkgs) \
-                -I ../../
+                -I ../../ \
+                | tee  # tee to prevent interactive mode
             '');
           };
+
+          check.host-configs = {
+            type = "app";
+            program = let
+              checkHost = host: ''
+                nix build '.#nixosConfigurations.${host}.config.system.build.toplevel' --out-link ./result-${host} -j2 $@
+                RC_${host}=$?
+              '';
+            in builtins.toString (pkgs.writeShellScript
+              "check-host-configs"
+              ''
+                ${checkHost "desko"}
+                ${checkHost "lappy"}
+                ${checkHost "servo"}
+                ${checkHost "moby"}
+                ${checkHost "rescue"}
+                echo "desko: $RC_desko"
+                echo "lappy: $RC_lappy"
+                echo "servo: $RC_servo"
+                echo "moby: $RC_moby"
+                echo "rescue: $RC_rescue"
+                exit $(($RC_desko | $RC_lappy | $RC_servo | $RC_moby | $RC_rescue))
+              ''
+            );
+          };
         };
 
       templates = {

hosts/by-name/lappy/polyfill.nix

@@ -3,13 +3,15 @@
 { pkgs, ... }:
 {
   sane.gui.sxmo = {
-    greeter = "sway";
+    greeter = "greetd-sway-gtkgreet";
+    noidle = true;  #< power button requires 1s hold, which makes it impractical to be dealing with.
     settings = {
       # XXX: make sure the user is part of the `input` group!
       SXMO_LISGD_INPUT_DEVICE = "/dev/input/by-id/usb-Wacom_Co._Ltd._Pen_and_multitouch_sensor-event-if00";
       # these identifiers are from `swaymsg -t get_inputs`
       SXMO_VOLUME_BUTTON = "1:1:AT_Translated_Set_2_keyboard";
       # SXMO_VOLUME_BUTTON = "none";
+      # N.B.: thinkpad's power button requires a full second press to do anything
       SXMO_POWER_BUTTON = "0:1:Power_Button";
       # SXMO_POWER_BUTTON = "none";
       SXMO_DISABLE_LEDS = "1";
@@ -27,8 +29,11 @@
       # - SXMO_SWAY_SCALE
       # see <repo:mil/sxmo-utils:scripts/deviceprofiles>
       # SXMO_DEVICE_NAME = "pine64,pinephone-1.2";
+      # if sxmo doesn't know the device, it can't decide whether to use one_button or three_button mode
+      #   and so it just wouldn't handle any button inputs (sxmo_hook_inputhandler.sh not on path)
+      SXMO_DEVICE_NAME = "three_button_touchscreen";
     };
-    package = pkgs.sxmo-utils.overrideAttrs (base: {
+    package = (pkgs.sxmo-utils-latest.override { preferSystemd = true; }).overrideAttrs (base: {
       postPatch = (base.postPatch or "") + ''
         # after volume-button navigation mode, restore full keyboard functionality
         cp ${./xkb_mobile_normal_buttons} ./configs/xkb/xkb_mobile_normal_buttons

hosts/by-name/moby/default.nix

@@ -23,6 +23,12 @@
   sane.zsh.showDeadlines = false;  # unlikely to act on them when in shell
   sane.services.wg-home.enable = true;
   sane.services.wg-home.ip = config.sane.hosts.by-name."moby".wg-home.ip;
+  sane.wowlan.enable = true;
+  sane.wowlan.patterns = [
+    { ipv4.destPort = 22; }  # wake on SSH
+    { ipv4.srcPort = 2587; }  # wake on `ntfy-sh` push from servo
+    { arp.queryIp = [ 10 78 79 54 ]; }  # wake when somebody is doing an ARP query against us
+  ];
 
   # XXX colin: phosh doesn't work well with passwordless login,
   # so set this more reliable default password should anything go wrong
@@ -31,25 +37,53 @@
 
   sops.secrets.colin-passwd.neededForUsers = true;
 
-  sane.user.persist.plaintext = [
-    # TODO: make this just generally conditional upon pulse being enabled?
-    ".config/pulse"  # persist pulseaudio volume
-  ];
-
   sane.gui.sxmo.enable = true;
   sane.programs.guiApps.suggestedPrograms = [ "handheldGuiApps" ];
   # sane.programs.consoleUtils.enableFor.user.colin = false;
   # sane.programs.guiApps.enableFor.user.colin = false;
+  sane.programs.blueberry.enableFor.user.colin = false;  # bluetooth manager: doesn't cross compile!
   sane.programs.sequoia.enableFor.user.colin = false;
   sane.programs.tuiApps.enableFor.user.colin = false;  # visidata, others, don't compile well
   # disabled for faster deploys
   sane.programs.soundconverter.enableFor.user.colin = false;
+  sane.programs.eg25-control.enableFor.user.colin = true;
 
-  # sane.programs.firefox.mime.priority = 300;  # prefer other browsers when possible
+  sane.programs.ntfy-sh.config.autostart = true;
+  sane.programs.dino.config.autostart = true;
+  # sane.programs.calls.config.autostart = true;
+
+  sane.programs.firefox.mime.priority = 300;  # prefer other browsers when possible
   # HACK/TODO: make `programs.P.env.VAR` behave according to `mime.priority`
-  # sane.programs.firefox.env = lib.mkForce {};
+  sane.programs.firefox.env = lib.mkForce {};
-  # sane.programs.epiphany.env.BROWSER = "epiphany";
+  sane.programs.epiphany.env.BROWSER = "epiphany";
-  # sane.programs.firefox.enableFor.user.colin = false;  # use epiphany instead
+  sane.programs.firefox.enableFor.user.colin = false;  # use epiphany instead
+
+  # note the .conf.d approach: using ~/.config/pipewire/pipewire.conf directly breaks all audio,
+  # presumably because that deletes the defaults entirely whereas the .conf.d approach selectively overrides defaults
+  sane.user.fs.".config/pipewire/pipewire.conf.d/10-fix-dino-mic-cutout.conf".symlink.text = ''
+    # config docs: <https://gitlab.freedesktop.org/pipewire/pipewire/-/wikis/Config-PipeWire#properties>
+    # useful to run `pw-top` to see that these settings are actually having effect,
+    # and `pw-metadata` to see if any settings conflict (e.g. max-quantum < min-quantum)
+    #
+    # restart pipewire after editing these files:
+    # - `systemctl --user restart pipewire`
+    # - pipewire users will likely stop outputting audio until they are also restarted
+    #
+    # there's seemingly two buffers for the mic (see: <https://gitlab.freedesktop.org/pipewire/pipewire/-/wikis/FAQ#pipewire-buffering-explained>)
+    # 1. Pipewire buffering out of the driver and into its own member.
+    # 2. Pipewire buffering into Dino.
+    # the latter is fixed at 10ms by Dino, difficult to override via runtime config.
+    # the former defaults low (e.g. 512 samples)
+    # this default configuration causes the mic to regularly drop out entirely for a couple seconds at a time during a call,
+    # presumably because the system can't keep up (pw-top shows incrementing counter in ERR column).
+    # `pw-metadata -n settings 0 clock.force-quantum 1024` reduces to about 1 error per second.
+    # `pw-metadata -n settings 0 clock.force-quantum 2048` reduces to 1 error every < 10s.
+    # pipewire default config includes `clock.power-of-two-quantum = true`
+    context.properties = {
+      default.clock.min-quantum = 2048
+      default.clock.max-quantum = 8192
+    }
+  '';
 
   # sane.programs.mpv.enableFor.user.colin = true;
 
@@ -72,12 +106,16 @@
   # `cat /proc/meminfo` to see CmaTotal/CmaFree if interested in tuning this.
   boot.kernelParams = [ "cma=512M" ];
 
+  # hardware.firmware makes the referenced files visible to the kernel, for whenever a driver explicitly asks for them.
+  # these files are visible from userspace by following `/sys/module/firmware_class/parameters/path`
+  #
   # mobile-nixos' /lib/firmware includes:
   #   rtl_bt          (bluetooth)
-  #   anx7688-fw.bin  (USB-C -> HDMI bridge)
+  #   anx7688-fw.bin  (USB-C chip: power negotiation, HDMI/dock)
   #   ov5640_af.bin   (camera module)
   # hardware.firmware = [ config.mobile.device.firmware ];
-  hardware.firmware = [ pkgs.rtl8723cs-firmware ];
+  # hardware.firmware = [ pkgs.rtl8723cs-firmware ];
+  hardware.firmware = [ pkgs.linux-firmware-megous ];
 
   system.stateVersion = "21.11";
 
@@ -96,15 +134,11 @@
   environment.variables.ALSA_CONFIG_UCM2 = "/run/current-system/sw/share/alsa/ucm2";
   environment.pathsToLink = [ "/share/alsa/ucm2" ];
   environment.systemPackages = [ pkgs.alsa-ucm-conf-sane ];
-  systemd =
+  systemd = let
-    let ucm-env = config.environment.variables.ALSA_CONFIG_UCM2;
+    ucm-env = config.environment.variables.ALSA_CONFIG_UCM2;
-    in {
+  in {
     # cribbed from <repo:nixos/mobile-nixos:modules/quirks/audio.nix>
 
-    # pulseaudio
-    user.services.pulseaudio.environment.ALSA_CONFIG_UCM2 = ucm-env;
-    services.pulseaudio.environment.ALSA_CONFIG_UCM2      = ucm-env;
-
     # pipewire
     user.services.pipewire.environment.ALSA_CONFIG_UCM2       = ucm-env;
     user.services.pipewire-pulse.environment.ALSA_CONFIG_UCM2 = ucm-env;
@@ -112,6 +146,19 @@
     services.pipewire.environment.ALSA_CONFIG_UCM2            = ucm-env;
     services.pipewire-pulse.environment.ALSA_CONFIG_UCM2      = ucm-env;
     services.wireplumber.environment.ALSA_CONFIG_UCM2         = ucm-env;
+
+    # pulseaudio
+    # user.services.pulseaudio.environment.ALSA_CONFIG_UCM2 = ucm-env;
+    # services.pulseaudio.environment.ALSA_CONFIG_UCM2      = ucm-env;
+
+
+    # TODO: move elsewhere...
+    services.ModemManager.serviceConfig = {
+      # N.B.: the extra "" in ExecStart serves to force upstream ExecStart to be ignored
+      ExecStart = [ "" "${pkgs.modemmanager}/bin/ModemManager --debug" ];
+      # --debug sets DEBUG level logging: so reset
+      ExecStartPost = [ "${pkgs.modemmanager}/bin/mmcli --set-logging=INFO" ];
+    };
   };
 
   services.udev.extraRules = let
@@ -125,39 +172,4 @@
     # make Pinephone front LEDs writable by user.
     SUBSYSTEM=="leds", DEVPATH=="*/*:indicator", RUN+="${chmod} g+w /sys%p/brightness", RUN+="${chown} :video /sys%p/brightness"
   '';
-
-  hardware.opengl.driSupport = true;
-
-  services.xserver.displayManager.job.preStart = let
-    dmesg = "${pkgs.util-linux}/bin/dmesg";
-    grep = "${pkgs.gnugrep}/bin/grep";
-    modprobe = "${pkgs.kmod}/bin/modprobe";
-  in ''
-    # common boot failure:
-    # blank screen (no backlight even), with the following log:
-    # ```syslog
-    # sun8i-dw-hdmi 1ee0000.hdmi: Couldn't get the HDMI PHY
-    # ...
-    # sun4i-drm display-engine: Couldn't bind all pipelines components
-    # ...
-    # sun8i-dw-hdmi: probe of 1ee0000.hdmi failed with error -17
-    # ```
-    #
-    # in particular, that `probe ... failed` occurs *only* on failed boots
-    # (the other messages might sometimes occur even on successful runs?)
-    #
-    # reloading the sun8i hdmi driver usually gets the screen on, showing boot text.
-    # then restarting display-manager.service gets us to the login.
-    #
-    # NB: the above log is default level. though less specific, there's a `err` level message that also signals this:
-    # sun4i-drm display-engine: failed to bind 1ee0000.hdmi (ops sun8i_dw_hdmi_ops [sun8i_drm_hdmi]): -17
-
-    if (${dmesg} --kernel --level err --color=never --notime | ${grep} -q 'sun4i-drm display-engine: failed to bind 1ee0000.hdmi')
-    then
-      echo "reprobing sun8i_drm_hdmi"
-      # if a command here fails it errors the whole service, so prefer to log instead
-      ${modprobe} -r sun8i_drm_hdmi || echo "failed to unload sun8i_drm_hdmi"
-      ${modprobe} sun8i_drm_hdmi || echo "failed to load sub8i_drm_hdmi"
-    fi
-  '';
 }

hosts/by-name/moby/gps.nix

@@ -7,18 +7,63 @@
 # - `screen /dev/ttyUSB2 115200`
 #   - `AT+QGPSCFG="nmeasrc",1`
 #   - `AT+QGPS=1`
+# this process is automated by my `eg25-control` program and services (`eg25-control-powered`, `eg25-control-gps`)
+# - see the `modules/` directory further up this repository.
 #
-# now, something like `gpsd` can directly read from /dev/ttyUSB1.
+# now, something like `gpsd` can directly read from /dev/ttyUSB1,
+# or geoclue can query the GPS directly through modem-manager
 #
 # initial GPS fix can take 15+ minutes.
-# meanwhile, services like eg25-manager can speed this up by uploading assisted GPS data to the modem.
+# meanwhile, services like eg25-manager or eg25-control-freshen-agps can speed this up by uploading assisted GPS data to the modem.
 #
-# geoclue somehow fits in here as a geospatial provider that leverages GPS and also other sources like radio towers
+# support/help:
+# - geoclue, gnome-maps
+#   - irc: #gnome-maps on irc.gimp.org
+#   - Matrix: #gnome-maps:gnome.org  (unclear if bridged to IRC)
+#
+# programs to pair this with:
+# - `satellite-gtk`: <https://codeberg.org/tpikonen/satellite>
+#   - shows/tracks which satellites the GPS is connected to; useful to understand fix characteristics
+# - `gnome-maps`: uses geoclue, has route planning
+# - `mepo`: uses gpsd, minimalist, flaky, and buttons are kinda hard to activate on mobile
+# - puremaps?
+# - osmin?
+#
+# known/outstanding bugs:
+# - `systemctl start eg25-control-gps` can the hang the whole system (2023/10/06)
+#   - i think it's actually `eg25-control-powered` which does this (started by the gps)
+#   - best guess is modem draws so much power at launch that other parts of the system see undervoltage
+#   - workaround is to hard power-cycle the system. the modem may not bring up after reboot: leave unpowered for 60s and boot again.
+#
+# future work:
+# - integrate with [wigle](https://www.wigle.net/) for offline equivalent to Mozilla Location Services
 
-{ ... }:
+{ config, lib, ... }:
 {
+  # test gpsd with `gpspipe -w -n 10 2> /dev/null | grep -m 1 TPV | jq '.lat, .lon' | tr '\n' ' '`
+  # ^ should return <lat> <long>
   services.gpsd.enable = true;
   services.gpsd.devices = [ "/dev/ttyUSB1" ];
 
-  # TODO: enable eg25-manager, and bring online both the modem and GPS on boot
+  # test geoclue2 by building `geoclue2-with-demo-agent`
+  # and running "${geoclue2-with-demo-agent}/libexec/geoclue-2.0/demos/where-am-i"
+  # note that geoclue is dbus-activated, and auto-stops after 60s with no caller
+  services.geoclue2.enable = true;
+  services.geoclue2.appConfig.where-am-i = {
+    # this is the default "agent", shipped by geoclue package: allow it to use location
+    isAllowed = true;
+    isSystem = false;
+    # XXX: setting users != [] might be causing `where-am-i` to time out
+    users = [
+      # restrict to only one set of users. empty array (default) means "allow any user to access geolocation".
+      (builtins.toString config.users.users.colin.uid)
+    ];
+  };
+  systemd.services.geoclue.after = lib.mkForce [];  #< defaults to network-online, but not all my sources require network
+  users.users.geoclue.extraGroups = [
+    "dialout"  # TODO: figure out if dialout is required. that's for /dev/ttyUSB1, but geoclue probably doesn't read that?
+  ];
+
+  sane.services.eg25-control.enable = true;
+  sane.programs.where-am-i.enableFor.user.colin = true;
 }

hosts/by-name/moby/kernel.nix

@@ -1,71 +1,56 @@
-{ lib, pkgs, ... }:
+{ pkgs, ... }:
 let
-  # use the last commit on the 5.18 branch (5.18.14)
+  dmesg = "${pkgs.util-linux}/bin/dmesg";
-  # manjaro's changes between kernel patch versions tend to be minimal if any.
+  grep = "${pkgs.gnugrep}/bin/grep";
-  manjaroBase = "https://gitlab.manjaro.org/manjaro-arm/packages/core/linux/-/raw/25bd828cd47b1c6e09fcbcf394a649b89d2876dd";
+  modprobe = "${pkgs.kmod}/bin/modprobe";
-  manjaroPatch = name: sha256: {
+  ensureHWReady = ''
-    inherit name;
+    # common boot failure:
-    patch = pkgs.fetchpatch {
+    # blank screen (no backlight even), with the following log:
-      inherit name;
+    # ```syslog
-      url = "${manjaroBase}/${name}?inline=false";
+    # sun8i-dw-hdmi 1ee0000.hdmi: Couldn't get the HDMI PHY
-      inherit sha256;
+    # ...
-    };
+    # sun4i-drm display-engine: Couldn't bind all pipelines components
-  };
+    # ...
+    # sun8i-dw-hdmi: probe of 1ee0000.hdmi failed with error -17
+    # ```
+    #
+    # in particular, that `probe ... failed` occurs *only* on failed boots
+    # (the other messages might sometimes occur even on successful runs?)
+    #
+    # reloading the sun8i hdmi driver usually gets the screen on, showing boot text.
+    # then restarting display-manager.service gets us to the login.
+    #
+    # NB: the above log is default level. though less specific, there's a `err` level message that also signals this:
+    # sun4i-drm display-engine: failed to bind 1ee0000.hdmi (ops sun8i_dw_hdmi_ops [sun8i_drm_hdmi]): -17
+    # NB: this is the most common, but not the only, failure mode for `display-manager`.
+    # another error seems characterized by these dmesg logs, in which reprobing sun8i_drm_hdmi does not fix:
+    # ```syslog
+    # sun6i-mipi-dsi 1ca0000.dsi: Couldn't get the MIPI D-PHY
+    # sun4i-drm display-engine: Couldn't bind all pipelines components
+    # sun6i-mipi-dsi 1ca0000.dsi: Couldn't register our component
+    # ```
 
-  # the idea for patching off Manjaro's kernel comes from jakewaksbaum:
+    if (${dmesg} --kernel --level err --color=never --notime | ${grep} -q 'sun4i-drm display-engine: failed to bind 1ee0000.hdmi')
-  # - https://git.sr.ht/~jakewaksbaum/pi/tree/af20aae5653545d6e67a459b59ee3e1ca8a680b0/item/kernel/default.nix
+    then
-  # - he later abandoned this, i think because he's using the Pinephone Pro which received mainline support.
+      echo "reprobing sun8i_drm_hdmi"
-  manjaroPatches = [
+      # if a command here fails it errors the whole service, so prefer to log instead
-    (manjaroPatch
+      ${modprobe} -r sun8i_drm_hdmi || echo "failed to unload sun8i_drm_hdmi"
-      "1001-arm64-dts-allwinner-add-hdmi-sound-to-pine-devices.patch"
+      ${modprobe} sun8i_drm_hdmi || echo "failed to load sub8i_drm_hdmi"
-      "sha256-DApd791A+AxB28Ven/MVAyuyVphdo8KQDx8O7oxVPnc="
+    fi
-    )
+  '';
-    # these patches below are critical to enable wifi (RTL8723CS)
-    # - the alternative is a wholly forked kernel by megi/megous:
-    #   - https://xnux.eu/howtos/build-pinephone-kernel.html#toc-how-to-build-megi-s-pinehpone-kernel
-    # - i don't know if these patches are based on megi's or original
-    (manjaroPatch
-      "2001-Bluetooth-Add-new-quirk-for-broken-local-ext-features.patch"
-      "sha256-CExhJuUWivegxPdnzKINEsKrMFx/m/1kOZFmlZ2SEOc="
-    )
-    (manjaroPatch
-      "2002-Bluetooth-btrtl-add-support-for-the-RTL8723CS.patch"
-      "sha256-dDdvOphTcP/Aog93HyH+L9m55laTgtjndPSE4/rnzUA="
-    )
-    (manjaroPatch
-      "2004-arm64-dts-allwinner-enable-bluetooth-pinetab-pinepho.patch"
-      "sha256-o43P3WzXyHK1PF+Kdter4asuyGAEKO6wf5ixcco2kCQ="
-    )
-    # XXX: this one has a Makefile, which hardcodes /sbin/depmod:
-    # - drivers/staging/rtl8723cs/Makefile
-    # - not sure if this is problematic?
-    (manjaroPatch
-      "2005-staging-add-rtl8723cs-driver.patch"
-      "sha256-6ywm3dQQ5JYl60CLKarxlSUukwi4QzqctCj3tVgzFbo="
-    )
-  ];
 in
 {
-  # use Megi's kernel:
-  # even with the Manjaro patches, stock 5.18 has a few issues on Pinephone:
-  # - no battery charging
-  # - phone rotation sensor is off by 90 degrees
-  # - ambient light sensor causes screen brightness to be shakey
-  # - phosh greeter may not appear after wake from sleep
   boot.kernelPackages = pkgs.linuxPackagesFor pkgs.linux-megous;
+  # boot.kernelPackages = pkgs.linuxPackagesFor pkgs.linux-manjaro;
+  # boot.kernelPackages = pkgs.linuxPackagesFor pkgs.linux_latest;
 
-  # alternatively, use nixos' kernel and add the stuff we want:
+  # alternatively, apply patches directly to stock nixos kernel:
-  # # cross-compilation optimization:
-  # boot.kernelPackages =
-  #   let p = (import nixpkgs { localSystem = "x86_64-linux"; });
-  #   in p.pkgsCross.aarch64-multiplatform.linuxPackages_5_18;
-  # # non-cross:
-  # # boot.kernelPackages = pkgs.linuxPackages_5_18;
-
   # boot.kernelPatches = manjaroPatches ++ [
   #   (patchDefconfig kernelConfig)
   # ];
 
+  # configure nixos to build a compressed kernel image, since it doesn't usually do that for aarch64 target.
+  # without this i run out of /boot space in < 10 generations
   nixpkgs.hostPlatform.linux-kernel = {
     # defaults:
     name = "aarch64-multiplatform";
@@ -80,4 +65,7 @@ in
     target = "Image.gz";  # <-- compress the kernel image
     # target = "zImage";  # <-- confuses other parts of nixos :-(
   };
+
+  services.xserver.displayManager.job.preStart = ensureHWReady;
+  systemd.services.greetd.preStart = ensureHWReady;
 }

hosts/by-name/moby/polyfill.nix

@@ -9,13 +9,6 @@
 # - <https://itsfoss.com/content/images/2023/04/nixos-tutorials.png>
 
 { lib, pkgs, sane-lib, ... }:
-let
-  # TODO: generate this from the .svg
-  # bg = ./nixos-bg-02.png;
-  bg = pkgs.runCommand "nixos-bg.png" { nativeBuildInputs = [ pkgs.inkscape ]; } ''
-    inkscape ${./nixos-bg-02.svg} -o $out
-  '';
-in
 {
   sane.programs.firefox.config = {
     # compromise impermanence for the sake of usability
@@ -27,6 +20,9 @@ in
     # sidebery UX doesn't make sense on small screen
     addons.sidebery.enable = false;
   };
+  sane.programs.swaynotificationcenter.config = {
+    backlight = "backlight";  # /sys/class/backlight/*backlight*/brightness
+  };
 
   sane.gui.sxmo = {
     nogesture = true;
@@ -111,7 +107,7 @@ in
         "--center --margin 45"
         "--no-spacing"
         # XXX: font size doesn't seem to take effect (would prefer larger)
-        "--fn 'Sxmo 14' --line-height 22 --border 3"
+        "--fn 'monospace 14' --line-height 22 --border 3"
         "--bdr '${accent0}'"                     # border
         "--scf '${accent2}' --scb '${accent0}'"  # scrollbar
         "--tb '${accent0}' --tf '${fg0}'"        # title
@@ -123,6 +119,8 @@ in
       ];
       DEFAULT_COUNTRY = "US";
 
+      SXMO_AUTOROTATE = "1";  # enable auto-rotation at launch. has no meaning in stock/upstream sxmo-utils
+
       # BEMENU lines (wayland DMENU):
       # - camera is 9th entry
       # - flashlight is 10th entry
@@ -134,7 +132,6 @@ in
       # - close is 16th entry
       SXMO_BEMENU_LANDSCAPE_LINES = "11";  # default 8
       SXMO_BEMENU_PORTRAIT_LINES = "16";  # default 16
-      SXMO_BG_IMG = "${bg}";
       SXMO_LOCK_IDLE_TIME = "15";  # how long between screenoff -> lock -> back to screenoff (default: 8)
       # gravity: how far to tilt the device before the screen rotates
       # for a given setting, normal <-> invert requires more movement then left <-> right
@@ -167,13 +164,5 @@ in
       WVKBD_LANDSCAPE_LAYERS = "landscape,special,emoji";
       WVKBD_LAYERS = "full,special,emoji";
     };
-    package = pkgs.sxmo-utils.overrideAttrs (base: {
-      postPatch = (base.postPatch or "") + ''
-        cat <<EOF >> ./configs/default_hooks/sxmo_hook_start.sh
-        # rotate UI based on physical display angle by default
-        sxmo_daemons.sh start autorotate sxmo_autorotate.sh
-        EOF
-      '';
-    });
   };
 }

hosts/by-name/servo/default.nix

@@ -24,7 +24,9 @@
   ];
   sane.services.dyn-dns.enable = true;
   sane.services.wg-home.enable = true;
-  sane.services.wg-home.enableWan = true;
+  sane.services.wg-home.visibleToWan = true;
+  sane.services.wg-home.forwardToWan = true;
+  sane.services.wg-home.routeThroughServo = false;
   sane.services.wg-home.ip = config.sane.hosts.by-name."servo".wg-home.ip;
   sane.nixcache.substituters.servo = false;
   sane.nixcache.substituters.desko = false;

hosts/by-name/servo/fs.nix

@@ -2,6 +2,9 @@
 
 {
   sane.persist.root-on-tmpfs = true;
+  # increase /tmp space (defaults to 50% of RAM) for building large nix things.
+  # even the stock `nixpkgs.linux` consumes > 16 GB of tmp
+  fileSystems."/tmp".options = [ "size=32G" ];
 
   fileSystems."/nix" = {
     device = "/dev/disk/by-uuid/cc81cca0-3cc7-4d82-a00c-6243af3e7776";
@@ -37,6 +40,34 @@
     # TODO: this is overly broad; only need media and share directories to be persisted
     { user = "colin"; group = "users"; path = "/var/lib/uninsane"; }
   ];
+  # force some problematic directories to always get correct permissions:
+  sane.fs."/var/lib/uninsane/media".dir.acl = {
+    user = "colin"; group = "media"; mode = "0775";
+  };
+  sane.fs."/var/lib/uninsane/media/archive".dir = {};
+  sane.fs."/var/lib/uninsane/media/archive/README.md".file.text = ''
+    this directory is for media i wish to remove from my library,
+    but keep for a short time in case i reverse my decision.
+    treat it like a system trash can.
+  '';
+  sane.fs."/var/lib/uninsane/media/Books".dir = {};
+  sane.fs."/var/lib/uninsane/media/Books/Audiobooks".dir = {};
+  sane.fs."/var/lib/uninsane/media/Books/Books".dir = {};
+  sane.fs."/var/lib/uninsane/media/Books/Visual".dir = {};
+  sane.fs."/var/lib/uninsane/media/collections".dir = {};
+  sane.fs."/var/lib/uninsane/media/datasets".dir = {};
+  sane.fs."/var/lib/uninsane/media/freeleech".dir = {};
+  sane.fs."/var/lib/uninsane/media/Music".dir = {};
+  sane.fs."/var/lib/uninsane/media/Pictures".dir = {};
+  sane.fs."/var/lib/uninsane/media/Videos".dir = {};
+  sane.fs."/var/lib/uninsane/media/Videos/Film".dir = {};
+  sane.fs."/var/lib/uninsane/media/Videos/Shows".dir = {};
+  sane.fs."/var/lib/uninsane/media/Videos/Talks".dir = {};
+  sane.fs."/var/lib/uninsane/datasets/README.md".file.text = ''
+    this directory may seem redundant with ../media/datasets. it isn't.
+    this directory exists on SSD, allowing for speedy access to specific datasets when necessary.
+    the contents should be a subset of what's in ../media/datasets.
+  '';
   # make sure large media is stored to the HDD
   sane.persist.sys.ext = [
     {

hosts/by-name/servo/services/default.nix

@@ -7,7 +7,7 @@
     ./email
     ./ejabberd.nix
     ./freshrss.nix
-    ./ftp
+    ./export
     ./gitea.nix
     ./goaccess.nix
     ./ipfs.nix
@@ -18,9 +18,9 @@
     ./lemmy.nix
     ./matrix
     ./navidrome.nix
-    ./nfs.nix
-    ./nixserve.nix
     ./nginx.nix
+    ./nixserve.nix
+    ./ntfy.nix
     ./pict-rs.nix
     ./pleroma.nix
     ./postgres.nix

hosts/by-name/servo/services/ejabberd.nix

@@ -14,76 +14,105 @@
 #
 # compliance tests:
 # - <https://compliance.conversations.im/server/uninsane.org/#xep0352>
+#
+# administration:
+# - `sudo -u ejabberd ejabberdctl help`
+#
+# federation/support matrix:
+# - avatars
+#   - nixnet.services + dino: works in MUCs but not DMs  (as of 2023 H1)
+#   - movim.eu + dino: works in DMs, MUCs untested  (as of 2023/08/29)
+# - calls
+#   - local + dino: audio, video, works in DMs  (as of 2023/08/29)
+#   - movim.eu + dino: audio, video, works in DMs, no matter which side initiates  (as of 2023/08/30)
+#   - +native-cell-number@cheogram.com + dino: audio works in DMs, no matter which side initiates  (as of 2023/09/01)
+#     - can receive calls even if sender isn't in my roster
+#     - this is presumably using JMP.chat's SIP servers, which then convert it to XMPP call
+#
+# bugs:
+# - 2023/09/01: will randomly stop federating. `systemctl restart ejabberd` fixes, but takes 10 minutes.
 { config, lib, pkgs, ... }:
 
-# XXX: avatar support works in MUCs but not DMs
+let
-# lib.mkIf false
+  # TODO: this range could be larger, but right now that's costly because each element is its own UPnP forward
+  # TURN port range (inclusive)
+  turnPortLow = 49152;
+  turnPortHigh = 49167;
+  turnPortRange = lib.range turnPortLow turnPortHigh;
+in
 {
   sane.persist.sys.plaintext = [
     { user = "ejabberd"; group = "ejabberd"; path = "/var/lib/ejabberd"; }
   ];
-  sane.ports.ports."3478" = {
+  sane.ports.ports = lib.mkMerge ([
-    protocol = [ "tcp" "udp" ];
+    {
-    visibleTo.lan = true;
+      "3478" = {
-    visibleTo.wan = true;
+        protocol = [ "tcp" "udp" ];
-    description = "colin-xmpp-stun-turn";
+        visibleTo.lan = true;
-  };
+        visibleTo.wan = true;
-  sane.ports.ports."5222" = {
+        description = "colin-xmpp-stun-turn";
-    protocol = [ "tcp" ];
+      };
-    visibleTo.lan = true;
+      "5222" = {
-    visibleTo.wan = true;
+        protocol = [ "tcp" ];
-    description = "colin-xmpp-client-to-server";
+        visibleTo.lan = true;
-  };
+        visibleTo.wan = true;
-  sane.ports.ports."5223" = {
+        description = "colin-xmpp-client-to-server";
-    protocol = [ "tcp" ];
+      };
-    visibleTo.lan = true;
+      "5223" = {
-    visibleTo.wan = true;
+        protocol = [ "tcp" ];
-    description = "colin-xmpps-client-to-server";  # XMPP over TLS
+        visibleTo.lan = true;
-  };
+        visibleTo.wan = true;
-  sane.ports.ports."5269" = {
+        description = "colin-xmpps-client-to-server";  # XMPP over TLS
-    protocol = [ "tcp" ];
+      };
-    visibleTo.wan = true;
+      "5269" = {
-    description = "colin-xmpp-server-to-server";
+        protocol = [ "tcp" ];
-  };
+        visibleTo.wan = true;
-  sane.ports.ports."5270" = {
+        description = "colin-xmpp-server-to-server";
-    protocol = [ "tcp" ];
+      };
-    visibleTo.wan = true;
+      "5270" = {
-    description = "colin-xmpps-server-to-server";  # XMPP over TLS
+        protocol = [ "tcp" ];
-  };
+        visibleTo.wan = true;
-  sane.ports.ports."5280" = {
+        description = "colin-xmpps-server-to-server";  # XMPP over TLS
-    protocol = [ "tcp" ];
+      };
-    visibleTo.lan = true;
+      "5280" = {
-    visibleTo.wan = true;
+        protocol = [ "tcp" ];
-    description = "colin-xmpp-bosh";
+        visibleTo.lan = true;
-  };
+        visibleTo.wan = true;
-  sane.ports.ports."5281" = {
+        description = "colin-xmpp-bosh";
-    protocol = [ "tcp" ];
+      };
-    visibleTo.lan = true;
+      "5281" = {
-    visibleTo.wan = true;
+        protocol = [ "tcp" ];
-    description = "colin-xmpp-bosh-https";
+        visibleTo.lan = true;
-  };
+        visibleTo.wan = true;
-  sane.ports.ports."5349" = {
+        description = "colin-xmpp-bosh-https";
-    protocol = [ "tcp" ];
+      };
-    visibleTo.lan = true;
+      "5349" = {
-    visibleTo.wan = true;
+        protocol = [ "tcp" ];
-    description = "colin-xmpp-stun-turn-over-tls";
+        visibleTo.lan = true;
-  };
+        visibleTo.wan = true;
-  sane.ports.ports."5443" = {
+        description = "colin-xmpp-stun-turn-over-tls";
-    protocol = [ "tcp" ];
+      };
-    visibleTo.lan = true;
+      "5443" = {
-    visibleTo.wan = true;
+        protocol = [ "tcp" ];
-    description = "colin-xmpp-web-services";  # file uploads, websockets, admin
+        visibleTo.lan = true;
-  };
+        visibleTo.wan = true;
-
+        description = "colin-xmpp-web-services";  # file uploads, websockets, admin
-  # TODO: forward these TURN ports!
+      };
-  networking.firewall.allowedTCPPortRanges = [{
+    }
-    from = 49152;  # TURN
+  ] ++ (builtins.map
-    to = 49408;
+    (port: {
-  }];
+      "${builtins.toString port}" = let
-  networking.firewall.allowedUDPPortRanges = [{
+        count = port - turnPortLow + 1;
-    from = 49152;  # TURN
+        numPorts = turnPortHigh - turnPortLow + 1;
-    to = 49408;
+      in {
-  }];
+        protocol = [ "tcp" "udp" ];
+        visibleTo.lan = true;
+        visibleTo.wan = true;
+        description = "colin-xmpp-turn-${builtins.toString count}-of-${builtins.toString numPorts}";
+      };
+    })
+    turnPortRange
+  ));
 
   # provide access to certs
   # TODO: this should just be `acme`. then we also add nginx to the `acme` group.
@@ -150,284 +179,285 @@
   services.ejabberd.enable = true;
   services.ejabberd.configFile = "/var/lib/ejabberd/ejabberd.yaml";
   systemd.services.ejabberd.preStart = let
-    config-in = pkgs.writeTextFile {
+    config-in = pkgs.writeText "ejabberd.yaml.in" (lib.generators.toYAML {} {
-      name = "ejabberd.yaml.in";
+      hosts = [ "uninsane.org" ];
-      text = ''
+      # none | emergency | alert | critical | error | warning | notice | info | debug
-        hosts:
+      loglevel = "debug";
-          - uninsane.org
+      acme.auto = false;
+      certfiles = [ "/var/lib/acme/uninsane.org/full.pem" ];
+      # ca_file = "${pkgs.cacert.unbundled}/etc/ssl/certs/";
+      # ca_file = "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt";
 
-        # none | emergency | alert | critical | error | warning | notice | info | debug
+      pam_userinfotype = "jid";
-        loglevel: debug
+      acl = {
-        # loglevel: info
+        admin.user = [ "colin@uninsane.org" ];
-        # loglevel: notice
+        local.user_regexp = "";
+        loopback.ip = [ "127.0.0.0/8" "::1/128" ];
+      };
 
-        acme:
+      access_rules = {
-          auto: false
+        local.allow = "local";
-        certfiles:
+        c2s_access.allow = "all";
-        - /var/lib/acme/uninsane.org/full.pem
+        announce.allow = "admin";
-        # ca_file: ${pkgs.cacert.unbundled}/etc/ssl/certs/
+        configure.allow = "admin";
-        # ca_file: ${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt
+        muc_create.allow = "local";
+        pubsub_createnode_access.allow = "all";
+        trusted_network.allow = "loopback";
+      };
 
-        pam_userinfotype: jid
+      # docs: <https://docs.ejabberd.im/admin/configuration/basic/#shaper-rules>
+      shaper_rules = {
+        # setting this to above 1 may break outgoing messages
+        # - maybe some servers rate limit? or just don't understand simultaneous connections?
+        max_s2s_connections = 1;
+        max_user_sessions = 10;
+        max_user_offline_messages = 5000;
+        c2s_shaper.fast = "all";
+        s2s_shaper.med = "all";
+      };
 
-        acl:
+      # docs: <https://docs.ejabberd.im/admin/configuration/basic/#shapers>
-          admin:
+      # this limits the bytes/sec.
-            user:
+      # for example, burst: 3_000_000 and rate: 100_000 means:
-              - "colin@uninsane.org"
+      # - each client has a BW budget that accumulates 100kB/sec and is capped at 3 MB
-          local:
+      shaper.fast = 1000000;
-            user_regexp: ""
+      shaper.med  =  500000;
-          loopback:
+      # shaper.fast.rate       =  1000000;
-            ip:
+      # shaper.fast.burst_size = 10000000;
-              - 127.0.0.0/8
+      # shaper.med.rate        =   500000;
-              - ::1/128
+      # shaper.med.burst_size  =  5000000;
 
-        access_rules:
+      # see: <https://docs.ejabberd.im/admin/configuration/listen/>
-          local:
+      # s2s_use_starttls = true;
-            allow: local
+      s2s_use_starttls = "optional";
-          c2s_access:
+      # lessens 504: remote-server-timeout errors
-            allow: all
+      # see: <https://github.com/processone/ejabberd/issues/3105#issuecomment-562182967>
-          announce:
+      negotiation_timeout = 60;
-            allow: admin
-          configure:
-            allow: admin
-          muc_create:
-            allow: local
-          pubsub_createnode_access:
-            allow: all
-          trusted_network:
-            allow: loopback
 
-        # docs: <https://docs.ejabberd.im/admin/configuration/basic/#shaper-rules>
+      listen = [
-        shaper_rules:
+        {
-          # setting this to above 1 may break outgoing messages
+          port = 5222;
-          # - maybe some servers rate limit? or just don't understand simultaneous connections?
+          module = "ejabberd_c2s";
-          max_s2s_connections: 1
+          shaper = "c2s_shaper";
-          max_user_sessions: 10
+          starttls = true;
-          max_user_offline_messages: 5000
+          access = "c2s_access";
-          c2s_shaper:
+        }
-            fast: all
+        {
-          s2s_shaper:
+          port = 5223;
-            med: all
+          module = "ejabberd_c2s";
+          shaper = "c2s_shaper";
+          tls = true;
+          access = "c2s_access";
+        }
+        {
+          port = 5269;
+          module = "ejabberd_s2s_in";
+          shaper = "s2s_shaper";
+        }
+        {
+          port = 5270;
+          module = "ejabberd_s2s_in";
+          shaper = "s2s_shaper";
+          tls = true;
+        }
+        {
+          port = 5443;
+          module = "ejabberd_http";
+          tls = true;
+          request_handlers = {
+            "/admin" = "ejabberd_web_admin";  # TODO: ensure this actually works
+            "/api" = "mod_http_api";  # ejabberd API endpoint (to control server)
+            "/bosh" = "mod_bosh";
+            "/upload" = "mod_http_upload";
+            "/ws" = "ejabberd_http_ws";
+            # "/.well-known/host-meta" = "mod_host_meta";
+            # "/.well-known/host-meta.json" = "mod_host_meta";
+          };
+        }
+        {
+          # STUN+TURN TCP
+          # note that the full port range should be forwarded ("not NAT'd")
+          # `use_turn=true` enables both TURN *and* STUN
+          port = 3478;
+          module = "ejabberd_stun";
+          transport = "tcp";
+          use_turn = true;
+          turn_min_port = turnPortLow;
+          turn_max_port = turnPortHigh;
+          turn_ipv4_address = "%ANATIVE%";
+        }
+        {
+          # STUN+TURN UDP
+          port = 3478;
+          module = "ejabberd_stun";
+          transport = "udp";
+          use_turn = true;
+          turn_min_port = turnPortLow;
+          turn_max_port = turnPortHigh;
+          turn_ipv4_address = "%ANATIVE%";
+        }
+        {
+          # STUN+TURN TLS over TCP
+          port = 5349;
+          module = "ejabberd_stun";
+          transport = "tcp";
+          tls = true;
+          certfile = "/var/lib/acme/uninsane.org/full.pem";
+          use_turn = true;
+          turn_min_port = turnPortLow;
+          turn_max_port = turnPortHigh;
+          turn_ipv4_address = "%ANATIVE%";
+        }
+      ];
 
-        # docs: <https://docs.ejabberd.im/admin/configuration/basic/#shapers>
+      # TODO: enable mod_fail2ban
-        # this limits the bytes/sec.
+      # TODO(low): look into mod_http_fileserver for serving macros?
-        # for example, burst: 3_000_000 and rate: 100_000 means:
+      modules = {
-        # - each client has a BW budget that accumulates 100kB/sec and is capped at 3 MB
+        # mod_adhoc = {};
-        shaper:
+        # mod_announce = {
-          fast: 1000000
+        #   access = "admin";
-          med:   500000
+        # };
-        #   fast:
+        # allows users to set avatars in vCard
-        #     - rate:        1000000
+        # - <https://docs.ejabberd.im/admin/configuration/modules/#mod-avatar>
-        #     - burst_size: 10000000
+        mod_avatar = {};
-        #   med:
+        mod_caps = {};  # for mod_pubsub
-        #     - rate:         500000
+        mod_carboncopy = {};  # allows multiple clients to receive a user's message
-        #     - burst_size:  5000000
+        # queues messages when recipient is offline, including PEP and presence messages.
+        # compliance test suggests this be enabled
+        mod_client_state = {};
 
-        # see: <https://docs.ejabberd.im/admin/configuration/listen/>
+        # mod_conversejs: TODO: enable once on 21.12
-        # s2s_use_starttls: true
+        # allows clients like Dino to discover where to upload files
-        s2s_use_starttls: optional
+        mod_disco.server_info = [
-        # lessens 504: remote-server-timeout errors
+          {
-        # see: <https://github.com/processone/ejabberd/issues/3105#issuecomment-562182967>
+            modules = "all";
-        negotiation_timeout: 60
+            name = "abuse-addresses";
-
+            urls = [
-        listen:
+              "mailto:admin.xmpp@uninsane.org"
-          -
+              "xmpp:colin@uninsane.org"
-            port: 5222
+            ];
-            module: ejabberd_c2s
+          }
-            shaper: c2s_shaper
+          {
-            starttls: true
+            modules = "all";
-            access: c2s_access
+            name = "admin-addresses";
-          -
+            urls = [
-            port: 5223
+              "mailto:admin.xmpp@uninsane.org"
-            module: ejabberd_c2s
+              "xmpp:colin@uninsane.org"
-            shaper: c2s_shaper
+            ];
-            tls: true
+          }
-            access: c2s_access
+        ];
-          -
+        mod_http_upload = {
-            port: 5269
+          host = "upload.xmpp.uninsane.org";
-            module: ejabberd_s2s_in
+          hosts = [ "upload.xmpp.uninsane.org" ];
-            shaper: s2s_shaper
+          put_url = "https://@HOST@:5443/upload";
-          -
+          dir_mode = "0750";
-            port: 5270
+          file_mode = "0750";
-            module: ejabberd_s2s_in
+          rm_on_unregister = false;
-            shaper: s2s_shaper
+        };
-            tls: true
+        # allow discoverability of BOSH and websocket endpoints
-          -
+        # TODO: enable once on ejabberd 22.05  (presently 21.04)
-            port: 5443
+        # mod_host_meta = {};
-            module: ejabberd_http
+        mod_jidprep = {};  # probably not needed: lets clients normalize jids
-            tls: true
+        mod_last = {};  # allow other users to know when i was last online
-            request_handlers:
+        mod_mam = {
-              /admin: ejabberd_web_admin  # TODO: ensure this actually works
+          # Mnesia is limited to 2GB, better to use an SQL backend
-              /api: mod_http_api  # ejabberd API endpoint (to control server)
+          # For small servers SQLite is a good fit and is very easy
-              /bosh: mod_bosh
+          # to configure. Uncomment this when you have SQL configured:
-              /upload: mod_http_upload
+          # db_type: sql
-              /ws: ejabberd_http_ws
+          assume_mam_usage = true;
-              # /.well-known/host-meta: mod_host_meta
+          default = "always";
-              # /.well-known/host-meta.json: mod_host_meta
+        };
-          -
+        mod_muc = {
-            # STUN+TURN TCP
+          access = [ "allow" ];
-            # note that the full port range should be forwarded ("not NAT'd")
+          access_admin = { allow = "admin"; };
-            # `use_turn=true` enables both TURN *and* STUN
+          access_create = "muc_create";
-            port: 3478
+          access_persistent = "muc_create";
-            module: ejabberd_stun
+          access_mam = [ "allow" ];
-            transport: tcp
+          history_size = 100;  # messages to show new participants
-            use_turn: true
+          host = "muc.xmpp.uninsane.org";
-            turn_min_port: 49152
+          hosts = [ "muc.xmpp.uninsane.org" ];
-            turn_max_port: 65535
+          default_room_options = {
-            turn_ipv4_address: %ANATIVE%
+            anonymous = false;
-          -
+            lang = "en";
-            # STUN+TURN UDP
+            persistent = true;
-            port: 3478
+            mam = true;
-            module: ejabberd_stun
+          };
-            transport: udp
+        };
-            use_turn: true
+        mod_muc_admin = {};
-            turn_min_port: 49152
+        mod_offline = {
-            turn_max_port: 65535
+          # store messages for a user when they're offline (TODO: understand multi-client workflow?)
-            turn_ipv4_address: %ANATIVE%
+          access_max_user_messages = "max_user_offline_messages";
-          -
+          store_groupchat = true;
-            # STUN+TURN TLS over TCP
+        };
-            port: 5349
+        mod_ping = {};
-            module: ejabberd_stun
+        mod_privacy = {};  # deprecated, but required for `ejabberctl export_piefxis`
-            transport: tcp
+        mod_private = {};  # allow local clients to persist arbitrary data on my server
-            tls: true
+        # push notifications to services integrated with e.g. Apple/Android.
-            certfile: /var/lib/acme/uninsane.org/full.pem
+        # default is for a maximum amount of PII to be withheld, since these push notifs
-            use_turn: true
+        # generally traverse 3rd party services. can opt to include message body, etc, though.
-            turn_min_port: 49152
+        mod_push = {};
-            turn_max_port: 65535
+        # i don't fully understand what this does, but it seems aimed at making push notifs more reliable.
-            turn_ipv4_address: %ANATIVE%
+        mod_push_keepalive = {};
-
+        mod_roster = {
-        # TODO: enable mod_fail2ban
+          versioning = true;
-        # TODO(low): look into mod_http_fileserver for serving macros?
+        };
-        modules:
+        # docs: <https://docs.ejabberd.im/admin/configuration/modules/#mod-s2s-dialback>
-          # mod_adhoc: {}
+        # s2s dialback to verify inbound messages
-          # mod_announce:
+        # unclear to what degree the XMPP network requires this
-          #   access: admin
+        mod_s2s_dialback = {};
-          # allows users to set avatars in vCard
+        mod_shared_roster = {};  # creates groups for @all, @online, and anything manually administered?
-          # - <https://docs.ejabberd.im/admin/configuration/modules/#mod-avatar>
+        mod_stream_mgmt = {
-          mod_avatar: {}
+          # resend undelivered messages if the origin client is offline
-          mod_caps: {}  # for mod_pubsub
+          resend_on_timeout = "if_offline";
-          mod_carboncopy: {}  # allows multiple clients to receive a user's message
+        };
-          # queues messages when recipient is offline, including PEP and presence messages.
+        # fallback for when DNS-based STUN discovery is unsupported.
-          # compliance test suggests this be enabled
+        # - see: <https://xmpp.org/extensions/xep-0215.html>
-          mod_client_state: {}
+        # docs: <https://docs.ejabberd.im/admin/configuration/modules/#mod-stun-disco>
-          # mod_conversejs: TODO: enable once on 21.12
+        # people say to just keep this defaulted (i guess ejabberd knows to return its `host` option of uninsane.org?)
-          # allows clients like Dino to discover where to upload files
+        mod_stun_disco = {};
-          mod_disco:
+        # docs: <https://docs.ejabberd.im/admin/configuration/modules/#mod-vcard>
-            server_info:
+        mod_vcard = {
-              -
+          allow_return_all = true;  # all users are discoverable (?)
-                modules: all
+          host = "vjid.xmpp.uninsane.org";
-                name: abuse-addresses
+          hosts = [ "vjid.xmpp.uninsane.org" ];
-                urls:
+          search = true;
-                  - "mailto:admin.xmpp@uninsane.org"
+        };
-                  - "xmpp:colin@uninsane.org"
+        mod_vcard_xupdate = {};  # needed for avatars
-              -
+        # docs: <https://docs.ejabberd.im/admin/configuration/modules/#mod-pubsub>
-                modules: all
+        mod_pubsub = {
-                name: admin-addresses
+          #^ needed for avatars
-                urls:
+          access_createnode = "pubsub_createnode_access";
-                  - "mailto:admin.xmpp@uninsane.org"
+          host = "pubsub.xmpp.uninsane.org";
-                  - "xmpp:colin@uninsane.org"
+          hosts = [ "pubsub.xmpp.uninsane.org" ];
-          mod_http_upload:
+          ignore_pep_from_offline = false;
-            host: upload.xmpp.uninsane.org
+          last_item_cache = true;
-            hosts:
+          plugins = [
-              - upload.xmpp.uninsane.org
+            "pep"
-            put_url: "https://@HOST@:5443/upload"
+            "flat"
-            dir_mode: "0750"
+          ];
-            file_mode: "0750"
+          force_node_config = {
-            rm_on_unregister: false
+            # ensure client bookmarks are private
-          # allow discoverability of BOSH and websocket endpoints
+            "storage:bookmarks:" = {
-          # TODO: enable once on ejabberd 22.05  (presently 21.04)
+              "access_model" = "whitelist";
-          # mod_host_meta: {}
+            };
-          mod_jidprep: {}  # probably not needed: lets clients normalize jids
+            "urn:xmpp:avatar:data" = {
-          mod_last: {}  # allow other users to know when i was last online
+              "access_model" = "open";
-          mod_mam:
+            };
-            # Mnesia is limited to 2GB, better to use an SQL backend
+            "urn:xmpp:avatar:metadata" = {
-            # For small servers SQLite is a good fit and is very easy
+              "access_model" = "open";
-            # to configure. Uncomment this when you have SQL configured:
+            };
-            # db_type: sql
+          };
-            assume_mam_usage: true
+        };
-            default: always
+        mod_version = {};
-          mod_muc:
+      };
-            access:
+    });
-              - allow
-            access_admin:
-              - allow: admin
-            access_create: muc_create
-            access_persistent: muc_create
-            access_mam:
-              - allow
-            history_size: 100  # messages to show new participants
-            host: muc.xmpp.uninsane.org
-            hosts:
-              - muc.xmpp.uninsane.org
-            default_room_options:
-              anonymous: false
-              lang: en
-              persistent: true
-              mam: true
-          mod_muc_admin: {}
-          mod_offline:  # store messages for a user when they're offline (TODO: understand multi-client workflow?)
-            access_max_user_messages: max_user_offline_messages
-            store_groupchat: true
-          mod_ping: {}
-          mod_privacy: {}  # deprecated, but required for `ejabberctl export_piefxis`
-          mod_private: {}  # allow local clients to persist arbitrary data on my server
-          # push notifications to services integrated with e.g. Apple/Android.
-          # default is for a maximum amount of PII to be withheld, since these push notifs
-          # generally traverse 3rd party services. can opt to include message body, etc, though.
-          mod_push: {}
-          # i don't fully understand what this does, but it seems aimed at making push notifs more reliable.
-          mod_push_keepalive: {}
-          mod_roster:
-            versioning: true
-          # docs: <https://docs.ejabberd.im/admin/configuration/modules/#mod-s2s-dialback>
-          # s2s dialback to verify inbound messages
-          # unclear to what degree the XMPP network requires this
-          mod_s2s_dialback: {}
-          mod_shared_roster: {}  # creates groups for @all, @online, and anything manually administered?
-          mod_stream_mgmt:
-            resend_on_timeout: if_offline  # resend undelivered messages if the origin client is offline
-          # fallback for when DNS-based STUN discovery is unsupported.
-          # - see: <https://xmpp.org/extensions/xep-0215.html>
-          # docs: <https://docs.ejabberd.im/admin/configuration/modules/#mod-stun-disco>
-          # people say to just keep this defaulted (i guess ejabberd knows to return its `host` option of uninsane.org?)
-          mod_stun_disco: {}
-          # docs: <https://docs.ejabberd.im/admin/configuration/modules/#mod-vcard>
-          mod_vcard:
-            allow_return_all: true  # all users are discoverable (?)
-            host: vjid.xmpp.uninsane.org
-            hosts:
-              - vjid.xmpp.uninsane.org
-            search: true
-          mod_vcard_xupdate: {}  # needed for avatars
-          # docs: <https://docs.ejabberd.im/admin/configuration/modules/#mod-pubsub>
-          mod_pubsub:  # needed for avatars
-            access_createnode: pubsub_createnode_access
-            host: pubsub.xmpp.uninsane.org
-            hosts:
-              - pubsub.xmpp.uninsane.org
-            ignore_pep_from_offline: false
-            last_item_cache: true
-            plugins:
-              - pep
-              - flat
-            force_node_config:
-              # ensure client bookmarks are private
-              storage:bookmarks:
-                access_model: whitelist
-              urn:xmpp:avatar:data:
-                access_model: open
-              urn:xmpp:avatar:metadata:
-                access_model: open
-          mod_version: {}
-      '';
-    };
     sed = "${pkgs.gnused}/bin/sed";
   in ''
     ip=$(cat '${config.sane.services.dyn-dns.ipPath}')
     # config is 444 (not 644), so we want to write out-of-place and then atomically move
     # TODO: factor this out into `sane-woop` helper?
     rm -f /var/lib/ejabberd/ejabberd.yaml.new
-    ${sed} "s/%ANATIVE%/$ip/" ${config-in} > /var/lib/ejabberd/ejabberd.yaml.new
+    ${sed} "s/%ANATIVE%/$ip/g" ${config-in} > /var/lib/ejabberd/ejabberd.yaml.new
     mv /var/lib/ejabberd/ejabberd.yaml{.new,}
   '';
 

hosts/by-name/servo/services/export/default.nix

@@ -0,0 +1,53 @@
+{ config, ... }:
+{
+  imports = [
+    ./nfs.nix
+    ./sftpgo.nix
+  ];
+
+  users.groups.export = {};
+
+  fileSystems."/var/export/media" = {
+    # everything in here could be considered publicly readable (based on the viewer's legal jurisdiction)
+    device = "/var/lib/uninsane/media";
+    options = [ "rbind" ];
+  };
+  # fileSystems."/var/export/playground" = {
+  #   device = config.fileSystems."/mnt/persist/ext".device;
+  #   fsType = "btrfs";
+  #   options = [
+  #     "subvol=export-playground"
+  #     "compress=zstd"
+  #     "defaults"
+  #   ];
+  # };
+  # N.B.: the backing directory should be manually created here **as a btrfs subvolume** and with a quota.
+  # - `sudo btrfs subvolume create /mnt/persist/ext/persist/var/export/playground`
+  # - `sudo btrfs quota enable /mnt/persist/ext/persist/var/export/playground`
+  # - `sudo btrfs quota rescan -sw /mnt/persist/ext/persist/var/export/playground`
+  # to adjust the limits (which apply at the block layer, i.e. post-compression):
+  # - `sudo btrfs qgroup limit 20G /mnt/persist/ext/persist/var/export/playground`
+  # to query the quota/status:
+  # - `sudo btrfs qgroup show -re /var/export/playground`
+  sane.persist.sys.ext = [
+    { user = "root"; group = "export"; mode = "0775"; path = "/var/export/playground"; }
+  ];
+
+  sane.fs."/var/export/README.md" = {
+    wantedBy = [ "nfs.service" "sftpgo.service" ];
+    file.text = ''
+      - media/         read-only:  Videos, Music, Books, etc
+      - playground/    read-write: use it to share files with other users of this server
+    '';
+  };
+
+  sane.fs."/var/export/playground/README.md" = {
+    wantedBy = [ "nfs.service" "sftpgo.service" ];
+    file.text = ''
+      this directory is intentionally read+write by anyone with access (i.e. on the LAN).
+      - share files
+      - write poetry
+      - be a friendly troll
+    '';
+  };
+}

hosts/by-name/servo/services/export/nfs.nix

@@ -0,0 +1,110 @@
+# docs:
+# - <https://nixos.wiki/wiki/NFS>
+# - <https://wiki.gentoo.org/wiki/Nfs-utils>
+# system files:
+# - /etc/exports
+# system services:
+# - nfs-server.service
+# - nfs-idmapd.service
+# - nfs-mountd.service
+# - nfsdcld.service
+# - rpc-statd.service
+# - rpcbind.service
+#
+# TODO: force files to be 755, or 750.
+# - could maybe be done with some mount option?
+
+{ config, lib, ... }:
+{
+  services.nfs.server.enable = true;
+
+  # see which ports NFS uses with:
+  # - `rpcinfo -p`
+  sane.ports.ports."111" = {
+    protocol = [ "tcp" "udp" ];
+    visibleTo.lan = true;
+    description = "NFS server portmapper";
+  };
+  sane.ports.ports."2049" = {
+    protocol = [ "tcp" ];
+    visibleTo.lan = true;
+    description = "NFS server";
+  };
+  sane.ports.ports."4000" = {
+    protocol = [ "udp" ];
+    visibleTo.lan = true;
+    description = "NFS server status daemon";
+  };
+  sane.ports.ports."4001" = {
+    protocol = [ "tcp" "udp" ];
+    visibleTo.lan = true;
+    description = "NFS server lock daemon";
+  };
+  sane.ports.ports."4002" = {
+    protocol = [ "tcp" "udp" ];
+    visibleTo.lan = true;
+    description = "NFS server mount daemon";
+  };
+
+  # NFS4 allows these to float, but NFS3 mandates specific ports, so fix them for backwards compat.
+  services.nfs.server.lockdPort = 4001;
+  services.nfs.server.mountdPort = 4002;
+  services.nfs.server.statdPort = 4000;
+
+  # format:
+  #   fspoint	visibility(options)
+  # options:
+  # - see: <https://wiki.gentoo.org/wiki/Nfs-utils#Exports>
+  # - see [man 5 exports](https://linux.die.net/man/5/exports)
+  # - insecure:  require clients use src port > 1024
+  # - rw, ro (default)
+  # - async, sync (default)
+  # - no_subtree_check (default), subtree_check: verify not just that files requested by the client live
+  #     in the expected fs, but also that they live under whatever subdirectory of that fs is exported.
+  # - no_root_squash, root_squash (default): map requests from uid 0 to user `nobody`.
+  # - crossmnt:  reveal filesystems that are mounted under this endpoint
+  # - fsid:  must be zero for the root export
+  #   - fsid=root  is alias for fsid=0
+  # - mountpoint[=/path]:  only export the directory if it's a mountpoint. used to avoid exporting failed mounts.
+  # - all_squash: rewrite all client requests such that they come from anonuid/anongid
+  #   - any files a user creates are owned by local anonuid/anongid.
+  #   - users can read any local file which anonuid/anongid would be able to read.
+  #   - users can't chown to/away from anonuid/anongid.
+  #   - users can chmod files they own, to anything (making them unreadable to non-`nfsuser` export users, like FTP).
+  #   - `stat` remains unchanged, returning the real UIDs/GIDs to the client.
+  #     - thus programs which check `uid` or `gid` before trying an operation may incorrectly conclude they can't perform some op.
+  #
+  # 10.0.0.0/8 to export both to LAN (readonly, unencrypted) and wg vpn (read-write, encrypted)
+  services.nfs.server.exports =
+  let
+    fmtExport = { export, baseOpts, extraLanOpts ? [], extraVpnOpts ? [] }:
+      let
+        always = [ "subtree_check" ];
+        lanOpts = always ++ baseOpts ++ extraLanOpts;
+        vpnOpts = always ++ baseOpts ++ extraVpnOpts;
+      in "${export} 10.78.79.0/22(${lib.concatStringsSep "," lanOpts}) 10.0.10.0/24(${lib.concatStringsSep "," vpnOpts})";
+  in lib.concatStringsSep "\n" [
+    (fmtExport {
+      export = "/var/export";
+      baseOpts = [ "crossmnt" "fsid=root" ];
+      extraLanOpts = [ "ro" ];
+      extraVpnOpts = [ "rw" "no_root_squash" ];
+    })
+    (fmtExport {
+      export = "/var/export/playground";
+      baseOpts = [
+        "mountpoint"
+        "all_squash"
+        "rw"
+        "anonuid=${builtins.toString config.users.users.nfsuser.uid}"
+        "anongid=${builtins.toString config.users.groups.export.gid}"
+      ];
+    })
+  ];
+
+  users.users.nfsuser = {
+    description = "virtual user for anonymous NFS operations";
+    group = "export";
+    isSystemUser = true;
+  };
+}

hosts/by-name/servo/services/export/sftpgo.nix

@@ -0,0 +1,179 @@
+# docs:
+# - <https://github.com/drakkan/sftpgo>
+# - config options: <https://github.com/drakkan/sftpgo/blob/main/docs/full-configuration.md>
+# - config defaults: <https://github.com/drakkan/sftpgo/blob/main/sftpgo.json>
+# - nixos options: <repo:nixos/nixpkgs:nixos/modules/services/web-apps/sftpgo.nix>
+# - nixos example: <repo:nixos/nixpkgs:nixos/tests/sftpgo.nix>
+#
+# sftpgo is a FTP server that also supports WebDAV, SFTP, and web clients.
+#
+# TODO: change umask so sftpgo-created files default to 644.
+# - it does indeed appear that the 600 is not something sftpgo is explicitly doing.
+
+
+{ config, lib, pkgs, sane-lib, ... }:
+let
+  # user permissions:
+  # - see <repo:drakkan/sftpgo:internal/dataprovider/user.go>
+  # - "*" = grant all permissions
+  # - read-only perms:
+  #   - "list" = list files and directories
+  #   - "download"
+  # - rw perms:
+  #   - "upload"
+  #   - "overwrite" = allow uploads to replace existing files
+  #   - "delete" = delete files and directories
+  #     - "delete_files"
+  #     - "delete_dirs"
+  #   - "rename" = rename files and directories
+  #     - "rename_files"
+  #     - "rename_dirs"
+  #   - "create_dirs"
+  #   - "create_symlinks"
+  #   - "chmod"
+  #   - "chown"
+  #   - "chtimes" = change atime/mtime (access and modification times)
+  #
+  # home_dir:
+  # - it seems (empirically) that a user can't cd above their home directory.
+  #   though i don't have a reference for that in the docs.
+  authResponseSuccess = {
+    status = 1;
+    username = "anonymous";
+    expiration_date = 0;
+    home_dir = "/var/export";
+    # uid/gid 0 means to inherit sftpgo uid.
+    # - i.e. users can't read files which Linux user `sftpgo` can't read
+    # - uploaded files belong to Linux user `sftpgo`
+    # other uid/gid values aren't possible for localfs backend, unless i let sftpgo use `sudo`.
+    uid = 0;
+    gid = 0;
+    # uid = 65534;
+    # gid = 65534;
+    max_sessions = 0;
+    # quota_*: 0 means to not use SFTP's quota system
+    quota_size = 0;
+    quota_files = 0;
+    permissions = {
+      "/" = [ "list" "download" ];
+      "/playground" = [
+        # read-only:
+        "list"
+        "download"
+        # write:
+        "upload"
+        "overwrite"
+        "delete"
+        "rename"
+        "create_dirs"
+        "create_symlinks"
+        # intentionally omitted:
+        # "chmod"
+        # "chown"
+        # "chtimes"
+      ];
+    };
+    upload_bandwidth = 0;
+    download_bandwidth = 0;
+    filters = {
+      allowed_ip = [];
+      denied_ip = [];
+    };
+    public_keys = [];
+    # other fields:
+    # ? groups
+    # ? virtual_folders
+  };
+  authResponseFail = {
+    username = "";
+  };
+  authSuccessJson = pkgs.writeText "sftp-auth-success.json" (builtins.toJSON authResponseSuccess);
+  authFailJson = pkgs.writeText "sftp-auth-fail.json" (builtins.toJSON authResponseFail);
+  unwrappedAuthProgram = pkgs.static-nix-shell.mkBash {
+    pname = "sftpgo_external_auth_hook";
+    src = ./.;
+    pkgs = [ "coreutils" ];
+  };
+  authProgram = pkgs.writeShellScript "sftpgo-auth-hook" ''
+    ${unwrappedAuthProgram}/bin/sftpgo_external_auth_hook ${authFailJson} ${authSuccessJson}
+  '';
+in
+{
+  # Client initiates a FTP "control connection" on port 21.
+  # - this handles the client -> server commands, and the server -> client status, but not the actual data
+  # - file data, directory listings, etc need to be transferred on an ephemeral "data port".
+  # - 50000-50100 is a common port range for this.
+  sane.ports.ports = {
+    "21" = {
+      protocol = [ "tcp" ];
+      visibleTo.lan = true;
+      description = "colin-FTP server";
+    };
+  } // (sane-lib.mapToAttrs
+    (port: {
+      name = builtins.toString port;
+      value = {
+        protocol = [ "tcp" ];
+        visibleTo.lan = true;
+        description = "colin-FTP server data port range";
+      };
+    })
+    (lib.range 50000 50100)
+  );
+
+  services.sftpgo = {
+    enable = true;
+    group = "export";
+    settings = {
+      ftpd = {
+        bindings = [
+          {
+            # binding this means any wireguard client can connect
+            address = "10.0.10.5";
+            port = 21;
+            debug = true;
+          }
+          {
+            # binding this means any LAN client can connect
+            address = "10.78.79.51";
+            port = 21;
+            debug = true;
+          }
+        ];
+
+        # active mode is susceptible to "bounce attacks", without much benefit over passive mode
+        disable_active_mode = true;
+        hash_support = true;
+        passive_port_range = {
+          start = 50000;
+          end = 50100;
+        };
+
+        banner = ''
+          Welcome, friends, to Colin's read-only FTP server! Also available via NFS on the same host.
+          Username: "anonymous"
+          Password: "anonymous"
+          CONFIGURE YOUR CLIENT FOR "PASSIVE" mode, e.g. `ftp --passive uninsane.org`
+          Please let me know if anything's broken or not as it should be. Otherwise, browse and DL freely :)
+        '';
+
+      };
+      data_provider = {
+        driver = "memory";
+        external_auth_hook = "${authProgram}";
+        # track_quota:
+        # - 0: disable quota tracking
+        # - 1: quota is updated on every upload/delete, even if user has no quota restriction
+        # - 2: quota is updated on every upload/delete, but only if user/folder has a quota restriction  (default, i think)
+        # track_quota = 2;
+      };
+    };
+  };
+
+  users.users.sftpgo.extraGroups = [ "export" ];
+
+  systemd.services.sftpgo.serviceConfig = {
+    ReadOnlyPaths = [ "/var/export" ];
+    ReadWritePaths = [ "/var/export/playground" ];
+  };
+}

hosts/by-name/servo/services/export/sftpgo_external_auth_hook

@@ -0,0 +1,23 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p coreutils
+# vim: set filetype=bash :
+#
+# available environment variables:
+# - SFTPGO_AUTHD_USERNAME
+# - SFTPGO_AUTHD_USER
+# - SFTPGO_AUTHD_IP
+# - SFTPGO_AUTHD_PROTOCOL  = { "DAV", "FTP", "HTTP", "SSH" }
+# - SFTPGO_AUTHD_PASSWORD
+# - SFTPGO_AUTHD_PUBLIC_KEY
+# - SFTPGO_AUTHD_KEYBOARD_INTERACTIVE
+# - SFTPGO_AUTHD_TLS_CERT
+#
+#
+# call with <script_name> /path/to/fail/response.json /path/to/success/response.json
+
+
+if [ "$SFTPGO_AUTHD_USERNAME" = "anonymous" ]; then
+  cat "$2"
+else
+  cat "$1"
+fi

hosts/by-name/servo/services/ftp/default.nix

@@ -1,70 +0,0 @@
-# docs:
-# - <https://github.com/drakkan/sftpgo>
-# - config options: <https://github.com/drakkan/sftpgo/blob/main/docs/full-configuration.md>
-# - config defaults: <https://github.com/drakkan/sftpgo/blob/main/sftpgo.json>
-# - nixos options: <repo:nixos/nixpkgs:nixos/modules/services/web-apps/sftpgo.nix>
-#
-# sftpgo is a FTP server that also supports WebDAV, SFTP, and web clients.
-
-
-{ lib, pkgs, sane-lib, ... }:
-let
-  authProgram = pkgs.static-nix-shell.mkBash {
-    pname = "sftpgo_external_auth_hook";
-    src = ./.;
-  };
-in
-{
-  # Client initiates a FTP "control connection" on port 21.
-  # - this handles the client -> server commands, and the server -> client status, but not the actual data
-  # - file data, directory listings, etc need to be transferred on an ephemeral "data port".
-  # - 50000-50100 is a common port range for this.
-  sane.ports.ports = {
-    "21" = {
-      protocol = [ "tcp" ];
-      visibleTo.lan = true;
-      description = "colin-FTP server";
-    };
-  } // (sane-lib.mapToAttrs
-    (port: {
-      name = builtins.toString port;
-      value = {
-        protocol = [ "tcp" ];
-        visibleTo.lan = true;
-        description = "colin-FTP server data port range";
-      };
-    })
-    (lib.range 50000 50100)
-  );
-
-  services.sftpgo = {
-    enable = true;
-    settings = {
-      ftpd = {
-        bindings = [{
-          address = "10.0.10.5";
-          port = 21;
-          debug = true;
-        }];
-
-        # active mode is susceptible to "bounce attacks", without much benefit over passive mode
-        disable_active_mode = true;
-        hash_support = true;
-        passive_port_range = {
-          start = 50000;
-          end = 50100;
-        };
-
-        banner = ''
-          Welcome, friends, to Colin's read-only FTP server! Also available via NFS on the same host.
-          Please let me know if anything's broken or not as it should be. Otherwise, browse and DL freely :)
-        '';
-
-      };
-      data_provider = {
-        driver = "memory";
-        external_auth_hook = "${authProgram}/bin/sftpgo_external_auth_hook";
-      };
-    };
-  };
-}

hosts/by-name/servo/services/ftp/sftpgo_external_auth_hook

@@ -1,55 +0,0 @@
-#!/usr/bin/env nix-shell
-#!nix-shell -i bash
-# vim: set filetype=bash :
-#
-# available environment variables:
-# - SFTPGO_AUTHD_USERNAME
-# - SFTPGO_AUTHD_USER
-# - SFTPGO_AUTHD_IP
-# - SFTPGO_AUTHD_PROTOCOL  = { "DAV", "FTP", "HTTP", "SSH" }
-# - SFTPGO_AUTHD_PASSWORD
-# - SFTPGO_AUTHD_PUBLIC_KEY
-# - SFTPGO_AUTHD_KEYBOARD_INTERACTIVE
-# - SFTPGO_AUTHD_TLS_CERT
-#
-# user permissions:
-# - see <repo:drakkan/sftpgo:internal/dataprovider/user.go>
-# - "*" = grant all permissions
-# - read-only perms:
-#   - "list" = list files and directories
-#   - "download"
-# - rw perms:
-#   - "upload"
-#   - "overwrite" = allow uploads to replace existing files
-#   - "delete" = delete files and directories
-#     - "delete_files"
-#     - "delete_dirs"
-#   - "rename" = rename files and directories
-#     - "rename_files"
-#     - "rename_dirs"
-#   - "create_dirs"
-#   - "create_symlinks"
-#   - "chmod"
-#   - "chown"
-#   - "chtimes" = change atime/mtime (access and modification times)
-#
-# home_dir:
-# - it seems (empirically) that a user can't cd above their home directory.
-#   though i don't have a reference for that in the docs.
-# TODO: don't reuse /var/nfs/export here. formalize this some other way.
-
-
-if [ "$SFTPGO_AUTHD_USERNAME" = "anonymous" ]; then
-  echo '{'
-  echo '  "status":1,'
-  echo '  "username":"anonymous","expiration_date":0,'
-  echo '  "home_dir":"/var/nfs/export","uid":65534,"gid":65534,"max_sessions":0,"quota_size":0,"quota_files":100000,'
-  echo '  "permissions":{'
-  echo '    "/":["list", "download"]'
-  echo '  },'
-  echo '  "upload_bandwidth":0,"download_bandwidth":0,'
-  echo '  "filters":{"allowed_ip":[],"denied_ip":[]},"public_keys":[]'
-  echo '}'
-else
-  echo '{"username":""}'
-fi

hosts/by-name/servo/services/lemmy.nix

@@ -3,13 +3,23 @@
 # - <repo:LemmyNet/lemmy:docker/nginx.conf>
 # - <repo:LemmyNet/lemmy-ansible:templates/nginx.conf>
 
-{ config, lib, ... }:
+{ config, lib, pkgs, ... }:
 let
   inherit (builtins) toString;
   inherit (lib) mkForce;
   uiPort = 1234;  # default ui port is 1234
   backendPort = 8536; # default backend port is 8536
-  # - i guess the "backend" port is used for federation?
+  #^ i guess the "backend" port is used for federation?
+  pict-rs = pkgs.pict-rs.overrideAttrs (upstream: {
+    # as of v 0.4.2, all non-GIF video is forcibly transcoded.
+    # that breaks lemmy, because of the request latency.
+    # and it eats up hella CPU.
+    # pict-rs is iffy around video altogether: mp4 seems the best supported.
+    postPatch = (upstream.postPatch or "") + ''
+      substituteInPlace src/validate.rs \
+        --replace 'if transcode_options.needs_reencode() {' 'if false {'
+    '';
+  });
 in {
   services.lemmy = {
     enable = true;
@@ -56,4 +66,20 @@ in {
   };
 
   sane.dns.zones."uninsane.org".inet.CNAME."lemmy" = "native";
+
+  #v DO NOT REMOVE: defaults to 0.3, instead of latest, so always need to explicitly set this.
+  services.pict-rs.package = pict-rs;
+
+  # pict-rs configuration is applied in this order:
+  # - via toml
+  # - via env vars (overrides everything above)
+  # - via CLI flags (overrides everything above)
+  # some of the CLI flags have defaults, making it the only actual way to configure certain things even when docs claim otherwise.
+  # CLI args: <https://git.asonix.dog/asonix/pict-rs#user-content-running>
+  systemd.services.pict-rs.serviceConfig.ExecStart = lib.mkForce (lib.concatStringsSep " " [
+    "${lib.getBin pict-rs}/bin/pict-rs run"
+    "--media-max-frame-count" (builtins.toString (30*60*60))
+    "--media-process-timeout 120"
+    "--media-enable-full-video true"  # allow audio
+  ]);
 }

hosts/by-name/servo/services/matrix/default.nix

@@ -14,39 +14,47 @@
     { user = "matrix-synapse"; group = "matrix-synapse"; path = "/var/lib/matrix-synapse"; }
   ];
   services.matrix-synapse.enable = true;
-  # this changes the default log level from INFO to WARN.
+  services.matrix-synapse.settings = {
-  # maybe there's an easier way?
+    # this changes the default log level from INFO to WARN.
-  services.matrix-synapse.settings.log_config = ./synapse-log_level.yaml;
+    # maybe there's an easier way?
-  services.matrix-synapse.settings.server_name = "uninsane.org";
+    log_config = ./synapse-log_level.yaml;
+    server_name = "uninsane.org";
 
-  # services.matrix-synapse.enable_registration_captcha = true;
+    # services.matrix-synapse.enable_registration_captcha = true;
-  # services.matrix-synapse.enable_registration_without_verification = true;
+    # services.matrix-synapse.enable_registration_without_verification = true;
-  services.matrix-synapse.settings.enable_registration = true;
+    enable_registration = true;
-  # services.matrix-synapse.registration_shared_secret = "<shared key goes here>";
+    # services.matrix-synapse.registration_shared_secret = "<shared key goes here>";
 
-  # default for listeners is port = 8448, tls = true, x_forwarded = false.
+    # default for listeners is port = 8448, tls = true, x_forwarded = false.
-  # we change this because the server is situated behind nginx.
+    # we change this because the server is situated behind nginx.
-  services.matrix-synapse.settings.listeners = [
+    listeners = [
-    {
+      {
-      port = 8008;
+        port = 8008;
-      bind_addresses = [ "127.0.0.1" ];
+        bind_addresses = [ "127.0.0.1" ];
-      type = "http";
+        type = "http";
-      tls = false;
+        tls = false;
-      x_forwarded = true;
+        x_forwarded = true;
-      resources = [
+        resources = [
-        {
+          {
-          names = [ "client" "federation" ];
+            names = [ "client" "federation" ];
-          compress = false;
+            compress = false;
-        }
+          }
-      ];
+        ];
-    }
+      }
-  ];
+    ];
 
-  services.matrix-synapse.settings.x_forwarded = true;  # because we proxy matrix behind nginx
+    ip_range_whitelist = [
-  services.matrix-synapse.settings.max_upload_size = "100M";  # default is "50M"
+      # to communicate with ntfy.uninsane.org push notifs.
+      # TODO: move this to some non-shared loopback device: we don't want Matrix spouting http requests to *anything* on this machine
+      "10.78.79.51"
+    ];
 
-  services.matrix-synapse.settings.admin_contact = "admin.matrix@uninsane.org";
+    x_forwarded = true;  # because we proxy matrix behind nginx
-  services.matrix-synapse.settings.registrations_require_3pid = [ "email" ];
+    max_upload_size = "100M";  # default is "50M"
+
+    admin_contact = "admin.matrix@uninsane.org";
+    registrations_require_3pid = [ "email" ];
+  };
 
   services.matrix-synapse.extraConfigFiles = [
     config.sops.secrets."matrix_synapse_secrets.yaml".path

hosts/by-name/servo/services/matrix/irc.nix

@@ -141,6 +141,7 @@ in
           sasl = false;
           # notable channels:
           # - #hare
+          # - #mnt-reform
         };
         "irc.myanonamouse.net" = ircServer {
           name = "MyAnonamouse";

hosts/by-name/servo/services/nfs.nix

@@ -1,67 +0,0 @@
-# docs:
-# - <https://nixos.wiki/wiki/NFS>
-# - <https://wiki.gentoo.org/wiki/Nfs-utils>
-
-{ ... }:
-{
-  services.nfs.server.enable = true;
-
-  # see which ports NFS uses with:
-  # - `rpcinfo -p`
-  sane.ports.ports."111" = {
-    protocol = [ "tcp" "udp" ];
-    visibleTo.lan = true;
-    description = "NFS server portmapper";
-  };
-  sane.ports.ports."2049" = {
-    protocol = [ "tcp" ];
-    visibleTo.lan = true;
-    description = "NFS server";
-  };
-  sane.ports.ports."4000" = {
-    protocol = [ "udp" ];
-    visibleTo.lan = true;
-    description = "NFS server status daemon";
-  };
-  sane.ports.ports."4001" = {
-    protocol = [ "tcp" "udp" ];
-    visibleTo.lan = true;
-    description = "NFS server lock daemon";
-  };
-  sane.ports.ports."4002" = {
-    protocol = [ "tcp" "udp" ];
-    visibleTo.lan = true;
-    description = "NFS server mount daemon";
-  };
-
-  # NFS4 allows these to float, but NFS3 mandates specific ports, so fix them for backwards compat.
-  services.nfs.server.lockdPort = 4001;
-  services.nfs.server.mountdPort = 4002;
-  services.nfs.server.statdPort = 4000;
-
-  # format:
-  #   fspoint	visibility(options)
-  # options:
-  # - see: <https://wiki.gentoo.org/wiki/Nfs-utils#Exports>
-  # - see [man 5 exports](https://linux.die.net/man/5/exports)
-  # - insecure:  require clients use src port > 1024
-  # - rw, ro (default)
-  # - async, sync (default)
-  # - no_subtree_check (default), subtree_check: verify not just that files requested by the client live
-  #     in the expected fs, but also that they live under whatever subdirectory of that fs is exported.
-  # - no_root_squash, root_squash (default): map requests from uid 0 to user `nobody`.
-  # - crossmnt:  reveal filesystems that are mounted under this endpoint
-  # - fsid:  must be zero for the root export
-  # - mountpoint[=/path]:  only export the directory if it's a mountpoint. used to avoid exporting failed mounts.
-  #
-  # 10.0.0.0/8 to export (readonly) both to LAN (unencrypted) and wg vpn (encrypted)
-  services.nfs.server.exports = ''
-    /var/nfs/export 10.78.79.0/22(ro,crossmnt,fsid=0,subtree_check) 10.0.10.0/24(rw,no_root_squash,crossmnt,fsid=0,subtree_check)
-  '';
-
-  fileSystems."/var/nfs/export/media" = {
-    # everything in here could be considered publicly readable (based on the viewer's legal jurisdiction)
-    device = "/var/lib/uninsane/media";
-    options = [ "rbind" ];
-  };
-}

hosts/by-name/servo/services/ntfy.nix

@@ -0,0 +1,98 @@
+# ntfy: UnifiedPush notification delivery system
+# - used to get push notifications out of Matrix and onto a Phone (iOS, Android, or a custom client)
+#
+# config options:
+# - <https://docs.ntfy.sh/config/#config-options>
+#
+# usage:
+# - ntfy sub https://ntfy.uninsane.org/TOPIC
+# - ntfy pub https://ntfy.uninsane.org/TOPIC "my message"
+# in production, TOPIC is a shared secret between the publisher (Matrix homeserver) and the subscriber (phone)
+#
+# administering:
+# - sudo -u ntfy-sh ntfy access
+#
+# debugging:
+# - make sure that the keepalives are good:
+#   - on the subscriber machine, run `lsof -i4` to find the port being used
+#   - `sudo tcpdump tcp port <p>`
+#     - shouldn't be too spammy
+#
+# matrix integration:
+# - the user must manually point synapse to the ntfy endpoint:
+#   - `curl --header "Authorization: <your_token>" --data '{ "app_display_name": "sane-nix moby", "app_id": "ntfy.uninsane.org", "data": { "url": "https://ntfy.uninsane.org/_matrix/push/v1/notify", "format": "event_id_only" }, "device_display_name": "sane-nix moby", "kind": "http", "lang": "en-US", "profile_tag": "", "pushkey": "https://ntfy.uninsane.org/TOPIC" }' localhost:8008/_matrix/client/v3/pushers/set`
+#     where the token is grabbed from Element's help&about page when logged in
+#   - to remove, send this `curl` with `"kind": null`
+{ config, lib, pkgs, ... }:
+let
+  # subscribers need a non-443 public port to listen on as a way to easily differentiate this traffic
+  # at the IP layer, to enable e.g. wake-on-lan.
+  altPort = 2587;
+in
+{
+  sane.persist.sys.plaintext = [
+    # not 100% necessary to persist this, but ntfy does keep a 12hr (by default) cache
+    # for pushing notifications to users who become offline.
+    # ACLs also live here.
+    { user = "ntfy-sh"; group ="ntfy-sh"; path = "/var/lib/ntfy-sh"; }
+  ];
+
+  services.ntfy-sh.enable = true;
+  services.ntfy-sh.settings = {
+    base-url = "https://ntfy.uninsane.org";
+    behind-proxy = true;  # not sure if needed
+    # keepalive interval is a ntfy-specific keepalive thing, where it sends actual data down the wire.
+    # it's not simple TCP keepalive.
+    # defaults to 45s.
+    # note that the client may still do its own TCP-level keepalives, typically every 30s
+    keepalive-interval = "15m";
+    log-level = "trace";  # trace, debug, info (default), warn, error
+    auth-default-access = "deny-all";
+  };
+  systemd.services.ntfy-sh.serviceConfig.DynamicUser = lib.mkForce false;
+  systemd.services.ntfy-sh.preStart = ''
+    # make this specific topic read-write by world
+    # it would be better to use the token system, but that's extra complexity for e.g.
+    # how do i plumb a secret into the Matrix notification pusher
+    #
+    # note that this will fail upon first run, i.e. before ntfy has created its db.
+    # just restart the service.
+    topic=$(cat ${config.sops.secrets.ntfy-sh-topic.path})
+    ${pkgs.ntfy-sh}/bin/ntfy access everyone "$topic" read-write
+  '';
+
+  sops.secrets."ntfy-sh-topic" = {
+    mode = "0440";
+    owner = config.users.users.ntfy-sh.name;
+    group = config.users.users.ntfy-sh.name;
+  };
+
+
+  services.nginx.virtualHosts."ntfy.uninsane.org" = {
+    forceSSL = true;
+    enableACME = true;
+    listen = [
+      { addr = "0.0.0.0"; port = altPort; ssl = true; }
+      { addr = "0.0.0.0"; port = 443;  ssl = true; }
+      { addr = "0.0.0.0"; port = 80;   ssl = false; }
+    ];
+    locations."/" = {
+      proxyPass = "http://127.0.0.1:2586";
+      proxyWebsockets = true;  #< support websocket upgrades. without that, `ntfy sub` hangs silently
+      recommendedProxySettings = true; #< adds headers so ntfy logs include the real IP
+      extraConfig = ''
+        # absurdly long timeout (86400s=24h) so that we never hang up on clients.
+        # make sure the client is smart enough to detect a broken proxy though!
+        proxy_read_timeout 86400s;
+      '';
+    };
+  };
+  sane.dns.zones."uninsane.org".inet.CNAME."ntfy" = "native";
+
+  sane.ports.ports."${builtins.toString altPort}" = {
+    protocol = [ "tcp" ];
+    visibleTo.lan = true;
+    visibleTo.wan = true;
+    description = "colin-ntfy.uninsane.org";
+  };
+}

hosts/by-name/servo/services/pleroma.nix

@@ -63,6 +63,7 @@ in
       database: "pleroma",
       hostname: "localhost",
       pool_size: 10,
+      prepare: :named,
       parameters: [
           plan_cache_mode: "force_custom_plan"
       ]

hosts/by-name/servo/services/postgres.nix

@@ -1,12 +1,39 @@
-{ ... }:
+{ pkgs, ... }:
 
+let
+  GiB = n: MiB 1024*n;
+  MiB = n: KiB 1024*n;
+  KiB = n: 1024*n;
+in
 {
   sane.persist.sys.plaintext = [
     # TODO: mode?
     { user = "postgres"; group = "postgres"; path = "/var/lib/postgresql"; }
   ];
   services.postgresql.enable = true;
-  # services.postgresql.dataDir = "/opt/postgresql/13";
+
+  # HOW TO UPDATE:
+  # postgres version updates are manual and require intervention.
+  # - `sane-stop-all-servo`
+  # - `systemctl start postgresql`
+  # - as `sudo su postgres`:
+  #   - `cd /var/log/postgresql`
+  #   - `pg_dumpall > state.sql`
+  #   - `echo placeholder > <new_version>`  # to prevent state from being created earlier than we want
+  # - then, atomically:
+  #   - update the `services.postgresql.package` here
+  #   - `dataDir` is atomically updated to match package; don't touch
+  #   - `nixos-rebuild --flake . switch ; sane-stop-all-servo`
+  # - `sudo rm -rf /var/lib/postgresql/<new_version>`
+  # - `systemctl start postgresql`
+  # - as `sudo su postgres`:
+  #   - `cd /var/lib/postgreql`
+  #   - `psql -f state.sql`
+  # - restart dependent services (maybe test one at a time)
+
+  services.postgresql.package = pkgs.postgresql_15;
+
+
   # XXX colin: for a proper deploy, we'd want to include something for Pleroma here too.
   # services.postgresql.initialScript = pkgs.writeText "synapse-init.sql" ''
   #   CREATE ROLE "matrix-synapse" WITH LOGIN PASSWORD '<password goes here>';
@@ -17,10 +44,33 @@
   #     LC_CTYPE = "C";
   # '';
 
-  # TODO: perf tuning
+  # perf tuning
   # - for recommended values see: <https://pgtune.leopard.in.ua/>
   # - for official docs (sparse), see: <https://www.postgresql.org/docs/11/config-setting.html#CONFIG-SETTING-CONFIGURATION-FILE>
-  # services.postgresql.settings = { ... }
+  services.postgresql.settings = {
+    # DB Version: 15
+    # OS Type: linux
+    # DB Type: web
+    # Total Memory (RAM): 32 GB
+    # CPUs num: 12
+    # Data Storage: ssd
+    max_connections = 200;
+    shared_buffers = "8GB";
+    effective_cache_size = "24GB";
+    maintenance_work_mem = "2GB";
+    checkpoint_completion_target = 0.9;
+    wal_buffers = "16MB";
+    default_statistics_target = 100;
+    random_page_cost = 1.1;
+    effective_io_concurrency = 200;
+    work_mem = "10485kB";
+    min_wal_size = "1GB";
+    max_wal_size = "4GB";
+    max_worker_processes = 12;
+    max_parallel_workers_per_gather = 4;
+    max_parallel_workers = 12;
+    max_parallel_maintenance_workers = 4;
+  };
 
   # daily backups to /var/backup
   services.postgresqlBackup.enable = true;

hosts/by-name/servo/services/transmission.nix

@@ -1,12 +1,27 @@
-{ pkgs, ... }:
+{ config, pkgs, ... }:
 
 {
   sane.persist.sys.plaintext = [
     # TODO: mode? we need this specifically for the stats tracking in .config/
-    { user = "transmission"; group = "transmission"; path = "/var/lib/transmission"; }
+    { user = "transmission"; group = config.users.users.transmission.group; path = "/var/lib/transmission"; }
   ];
+  users.users.transmission.extraGroups = [ "media" ];
+
   services.transmission.enable = true;
+  services.transmission.package = pkgs.transmission_4;  #< 2023/09/06: nixpkgs `transmission` defaults to old 3.00
+  #v setting `group` this way doesn't tell transmission to `chown` the files it creates
+  #  it's a nixpkgs setting which just runs the transmission daemon as this group
+  services.transmission.group = "media";
+
+  # transmission will by default not allow the world to read its files.
+  services.transmission.downloadDirPermissions = "775";
+  services.transmission.extraFlags = [
+    "--log-level=debug"
+  ];
+
   services.transmission.settings = {
+    # message-level = 3;  #< enable for debug logging. 0-3, default is 2.
+    # 0.0.0.0 => allow rpc from any host: we gate it via firewall and auth requirement
     rpc-bind-address = "0.0.0.0";
     #rpc-host-whitelist = "bt.uninsane.org";
     #rpc-whitelist = "*.*.*.*";
@@ -17,9 +32,8 @@
     rpc-password = "{503fc8928344f495efb8e1f955111ca5c862ce0656SzQnQ5";
     rpc-whitelist-enabled = false;
 
-    # download-dir = "/opt/uninsane/media/";
     # hopefully, make the downloads world-readable
-    umask = 0;
+    # umask = 0;  #< default is 2: i.e. deny writes from world
 
     # force peer connections to be encrypted
     encryption = 2;
@@ -35,17 +49,18 @@
 
     download-dir = "/var/lib/uninsane/media";
     incomplete-dir = "/var/lib/uninsane/media/incomplete";
-
+    # transmission regularly fails to move stuff from the incomplete dir to the main one, so disable:
+    # TODO: uncomment this line!
+    incomplete-dir-enabled = false;
   };
-  # transmission will by default not allow the world to read its files.
-  services.transmission.downloadDirPermissions = "775";
 
   systemd.services.transmission.after = [ "wireguard-wg-ovpns.service" ];
   systemd.services.transmission.partOf = [ "wireguard-wg-ovpns.service" ];
   systemd.services.transmission.serviceConfig = {
     # run this behind the OVPN static VPN
     NetworkNamespacePath = "/run/netns/ovpns";
-    LogLevelMax = "warning";
+    Restart = "on-failure";
+    RestartSec = "30s";
   };
 
   # service to automatically backup torrents i add to transmission

hosts/by-name/servo/services/trust-dns.nix

@@ -1,14 +1,13 @@
+# TODO: split this file apart into smaller files to make it easier to understand
 { config, lib, pkgs, ... }:
 
+let
+  nativeAddrs = lib.mapAttrs (_name: builtins.head) config.sane.dns.zones."uninsane.org".inet.A;
+  bindOvpn = "10.0.1.5";
+in lib.mkMerge [
 {
   services.trust-dns.enable = true;
 
-  services.trust-dns.settings.listen_addrs_ipv4 = [
-    # specify each address explicitly, instead of using "*".
-    # this ensures responses are sent from the address at which the request was received.
-    config.sane.hosts.by-name."servo".lan-ip
-    "10.0.1.5"
-  ];
   # don't bind to IPv6 until i explicitly test that stack
   services.trust-dns.settings.listen_addrs_ipv6 = [];
   services.trust-dns.quiet = true;
@@ -34,18 +33,19 @@
   sane.dns.zones."uninsane.org".inet = {
     SOA."@" = ''
       ns1.uninsane.org. admin-dns.uninsane.org. (
-                                      2022122101 ; Serial
+                                      2023092101 ; Serial
                                       4h         ; Refresh
                                       30m        ; Retry
                                       7d         ; Expire
                                       5m)        ; Negative response TTL
     '';
-    TXT."rev" = "2023052901";
+    TXT."rev" = "2023092101";
 
     CNAME."native" = "%CNAMENATIVE%";
     A."@" =      "%ANATIVE%";
-    A."wan" = "%AWAN%";
+    A."servo.wan" = "%AWAN%";
     A."servo.lan" = config.sane.hosts.by-name."servo".lan-ip;
+    A."servo.hn" = config.sane.hosts.by-name."servo".wg-home.ip;
 
     # XXX NS records must also not be CNAME
     # it's best that we keep this identical, or a superset of, what org. lists as our NS.
@@ -63,55 +63,23 @@
 
   services.trust-dns.settings.zones = [ "uninsane.org" ];
 
-  services.trust-dns.package =
+  # TODO: can i transform this into some sort of service group?
-    let
+  # have `systemctl restart trust-dns.service` restart all the individual services?
-      sed = "${pkgs.gnused}/bin/sed";
-      zone-dir = "/var/lib/trust-dns";
-      zone-wan = "${zone-dir}/wan/uninsane.org.zone";
-      zone-lan = "${zone-dir}/lan/uninsane.org.zone";
-      zone-template = pkgs.writeText "uninsane.org.zone.in" config.sane.dns.zones."uninsane.org".rendered;
-    in pkgs.writeShellScriptBin "named" ''
-      # compute wan/lan values
-      mkdir -p ${zone-dir}/{ovpn,wan,lan}
-      wan=$(cat '${config.sane.services.dyn-dns.ipPath}')
-      lan=${config.sane.hosts.by-name."servo".lan-ip}
-
-      # create specializations that resolve native.uninsane.org to different CNAMEs
-      ${sed} s/%AWAN%/$wan/ ${zone-template} \
-        | ${sed} s/%CNAMENATIVE%/wan/ \
-        | ${sed} s/%ANATIVE%/$wan/ \
-        > ${zone-wan}
-      ${sed} s/%AWAN%/$wan/ ${zone-template} \
-        | ${sed} s/%CNAMENATIVE%/servo.lan/ \
-        | ${sed} s/%ANATIVE%/$lan/ \
-        > ${zone-lan}
-
-      # launch the different interfaces, separately
-      ${pkgs.trust-dns}/bin/named --port 53 --zonedir ${zone-dir}/wan/ $@ &
-      WANPID=$!
-      ${pkgs.trust-dns}/bin/named --port 1053 --zonedir ${zone-dir}/lan/ $@ &
-      LANPID=$!
-
-      # wait until any of the processes exits, then kill them all and exit error
-      while kill -0 $WANPID $LANPID ; do
-        sleep 5
-      done
-      kill $WANPID $LANPID
-      exit 1
-    '';
-
   systemd.services.trust-dns.serviceConfig = {
     DynamicUser = lib.mkForce false;
     User = "trust-dns";
     Group = "trust-dns";
+    wantedBy = lib.mkForce [];
   };
+  systemd.services.trust-dns.enable = false;
+
   users.groups.trust-dns = {};
   users.users.trust-dns = {
     group = "trust-dns";
     isSystemUser = true;
   };
 
-  sane.services.dyn-dns.restartOnChange = [ "trust-dns.service" ];
+  # sane.services.dyn-dns.restartOnChange = [ "trust-dns.service" ];
 
   networking.nat.enable = true;
   networking.nat.extraCommands = ''
@@ -127,12 +95,112 @@
       -m iprange --src-range 10.78.76.0-10.78.79.255 \
       -j DNAT --to-destination :1053
   '';
-
   sane.ports.ports."1053" = {
     # because the NAT above redirects in nixos-nat-pre, LAN requests behave as though they arrived on the external interface at the redirected port.
     # TODO: try nixos-nat-post instead?
+    # TODO: or, don't NAT from port 53 -> port 1053, but rather nat from LAN addr to a loopback addr.
+    # - this is complicated in that loopback is a different interface than eth0, so rewriting the destination address would cause the packets to just be dropped by the interface
     protocol = [ "udp" "tcp" ];
     visibleTo.lan = true;
     description = "colin-redirected-dns-for-lan-namespace";
   };
 }
+{
+  systemd.services =
+    let
+      sed = "${pkgs.gnused}/bin/sed";
+      stateDir = "/var/lib/trust-dns";
+      zoneTemplate = pkgs.writeText "uninsane.org.zone.in" config.sane.dns.zones."uninsane.org".rendered;
+
+      zoneDirFor = flavor: "${stateDir}/${flavor}";
+      zoneFor = flavor: "${zoneDirFor flavor}/uninsane.org.zone";
+      mkTrustDnsService = opts: flavor: let
+        flags = let baseCfg = config.services.trust-dns; in
+          (lib.optional baseCfg.debug "--debug") ++ (lib.optional baseCfg.quiet "--quiet");
+        flagsStr = builtins.concatStringsSep " " flags;
+
+        anative = nativeAddrs."servo.${flavor}";
+
+        toml = pkgs.formats.toml { };
+        configTemplate = opts.config or (toml.generate "trust-dns-${flavor}.toml" (
+          (
+            lib.filterAttrsRecursive (_: v: v != null) config.services.trust-dns.settings
+          ) // {
+            listen_addrs_ipv4 = opts.listen or [ anative ];
+          }
+        ));
+        configFile = "${stateDir}/${flavor}-config.toml";
+
+        port = opts.port or 53;
+      in {
+        description = "trust-dns Domain Name Server (serving ${flavor})";
+        unitConfig.Documentation = "https://trust-dns.org/";
+
+        preStart = ''
+          wan=$(cat '${config.sane.services.dyn-dns.ipPath}')
+          ${sed} s/%AWAN%/$wan/ ${configTemplate} > ${configFile}
+        '' + lib.optionalString (!opts ? config) ''
+          mkdir -p ${zoneDirFor flavor}
+          ${sed} \
+            -e s/%CNAMENATIVE%/servo.${flavor}/ \
+            -e s/%ANATIVE%/${anative}/ \
+            -e s/%AWAN%/$wan/ \
+            ${zoneTemplate} > ${zoneFor flavor}
+        '';
+        serviceConfig = config.systemd.services.trust-dns.serviceConfig // {
+          ExecStart = ''
+            ${pkgs.trust-dns}/bin/trust-dns \
+            --port ${builtins.toString port} \
+            --zonedir ${zoneDirFor flavor}/ \
+            --config ${configFile} ${flagsStr}
+          '';
+        };
+
+        after = [ "network.target" ];
+        wantedBy = [ "multi-user.target" ];
+      };
+    in {
+      trust-dns-wan = mkTrustDnsService { listen = [ nativeAddrs."servo.lan" bindOvpn ]; } "wan";
+      trust-dns-lan = mkTrustDnsService { port = 1053; } "lan";
+      trust-dns-hn = mkTrustDnsService { port = 1053; } "hn";
+      trust-dns-hn-resolver = mkTrustDnsService {
+        config = pkgs.writeText "hn-resolver-config.toml" ''
+          # i host a resolver in the wireguard VPN so that clients can resolve DNS through the VPN.
+          # (that's what this file achieves).
+          #
+          # one would expect this resolver could host the authoritative zone for `uninsane.org`, and then forward everything else to the system resolver...
+          # and while that works for `dig`, it breaks for `nslookup` (and so `ssh`, etc).
+          #
+          # DNS responses include a flag for if the responding server is the authority of the zone queried.
+          # it seems that default Linux stub resolvers either:
+          # - expect DNSSEC when the response includes that bit, or
+          # - expect A records to be in the `answer` section instead of `additional` section.
+          # or perhaps something more nuanced. but for `nslookup` to be reliable, it has to talk to an
+          # instance of trust-dns which is strictly a resolver, with no authority.
+          # hence, this config: a resolver which forwards to the actual authority.
+
+          listen_addrs_ipv4 = ["${nativeAddrs."servo.hn"}"]
+          listen_addrs_ipv6 = []
+
+          [[zones]]
+          zone = "uninsane.org"
+          zone_type = "Forward"
+          stores = { type = "forward", name_servers = [{ socket_addr = "${nativeAddrs."servo.hn"}:1053", protocol = "udp", trust_nx_responses = true }] }
+
+          [[zones]]
+          # forward the root zone to the local DNS resolver
+          zone = "."
+          zone_type = "Forward"
+          stores = { type = "forward", name_servers = [{ socket_addr = "127.0.0.53:53", protocol = "udp", trust_nx_responses = true }] }
+        '';
+      } "hn-resolver";
+    };
+
+  sane.services.dyn-dns.restartOnChange = [
+    "trust-dns-wan.service"
+    "trust-dns-lan.service"
+    "trust-dns-hn.service"
+    # "trust-dns-hn-resolver.service"  # doesn't need restart because it doesn't know about WAN IP
+  ];
+}
+]

hosts/common/default.nix

@@ -3,8 +3,9 @@
   imports = [
     ./feeds.nix
     ./fs.nix
-    ./hardware.nix
+    ./hardware
     ./home
+    ./hosts.nix
     ./ids.nix
     ./machine-id.nix
     ./net.nix

hosts/common/feeds.nix

@@ -1,4 +1,5 @@
 # where to find good stuff?
+# - podcasts w/ a community: <https://lemmyverse.net/communities?query=podcast>
 # - podcast rec thread: <https://lemmy.ml/post/1565858>
 #
 # candidates:
@@ -67,7 +68,12 @@ let
     (fromDb "craphound.com" // pol)
     ## Maggie Killjoy -- referenced by Cory Doctorow
     (fromDb "omny.fm/shows/cool-people-who-did-cool-stuff" // pol)
+    ## also Maggie Killjoy
+    (fromDb "feeds.megaphone.fm/behindthebastards" // pol)
+    ## Jennifer Briney
     (fromDb "congressionaldish.libsyn.com" // pol)
+    (fromDb "werenotwrong.fireside.fm" // pol)
+    (fromDb "politicalorphanage.libsyn.com" // pol)
     # (mkPod "https://podcasts.la.utexas.edu/this-is-democracy/feed/podcast/" // pol // weekly)
     ## Civboot -- https://anchor.fm/civboot
     (fromDb "anchor.fm/s/34c7232c/podcast/rss" // tech)
@@ -110,7 +116,7 @@ let
     (fromDb "cast.postmarketos.org" // tech)
     (fromDb "podcast.thelinuxexp.com" // tech)
     ## Michael Malice - Your Welcome -- also available here: <https://origin.podcastone.com/podcast?categoryID2=2232>
-    (fromDb "rss.art19.com/your-welcome" // pol)
+    # (fromDb "rss.art19.com/your-welcome" // pol)
     (fromDb "seattlenice.buzzsprout.com" // pol)
     ## Sci-Fi? has Peter Watts; author of No Moods, Ads or Cutesy Fucking Icons (rifters.com)
     (fromDb "talesfromthebridge.buzzsprout.com" // tech)
@@ -125,6 +131,10 @@ let
     (fromDb "feeds.simplecast.com/82FI35Px" // pol)
     ## Wireshark Podcast o_0
     (fromDb "sharkbytes.transistor.fm" // tech)
+    ## 3/4 German; 1/4 eps are English
+    (fromDb "omegataupodcast.net" // tech)
+    ## Lateral with Tom Scott
+    (mkPod "https://audioboom.com/channels/5097784.rss" // tech)
   ];
 
   texts = [
@@ -140,7 +150,7 @@ let
     (mkText "https://linuxphoneapps.org/blog/atom.xml" // tech // infrequent)
     (fromDb "tuxphones.com" // tech)
     (fromDb "spectrum.ieee.org" // tech)
-    (fromDb "theregister.com" // tech)
+    # (fromDb "theregister.com" // tech)
     (fromDb "thisweek.gnome.org" // tech)
     # more nixos stuff here, but unclear how to subscribe: <https://nixos.org/blog/categories.html>
     (mkText "https://nixos.org/blog/announcements-rss.xml" // tech // infrequent)
@@ -156,6 +166,8 @@ let
     (fromDb "uninsane.org" // tech)
     (fromDb "ascii.textfiles.com" // tech)  # Jason Scott
     (fromDb "xn--gckvb8fzb.com" // tech)
+    (fromDb "amosbbatto.wordpress.com" // tech)
+    (fromDb "fasterthanli.me" // tech)
     (fromDb "mg.lol" // tech)
     # (fromDb "drewdevault.com" // tech)
     ## Ken Shirriff
@@ -241,6 +253,7 @@ let
   images = [
     (fromDb "smbc-comics.com" // img // humor)
     (fromDb "xkcd.com" // img // humor)
+    (fromDb "turnoff.us" // img // humor)
     (fromDb "pbfcomics.com" // img // humor)
     # (mkImg "http://dilbert.com/feed" // humor // daily)
     (fromDb "poorlydrawnlines.com/feed" // img // humor)

hosts/common/fs.nix

@@ -1,136 +1,143 @@
 # docs
 # - x-systemd options: <https://www.freedesktop.org/software/systemd/man/systemd.mount.html>
 
-{ pkgs, sane-lib, ... }:
+{ lib, pkgs, sane-lib, ... }:
 
-let fsOpts = rec {
+let
-  common = [
+  fsOpts = rec {
-    "_netdev"
+    common = [
-    "noatime"
+      "_netdev"
-    "user"  # allow any user with access to the device to mount the fs
+      "noatime"
-    "x-systemd.requires=network-online.target"
+      "user"  # allow any user with access to the device to mount the fs
-    "x-systemd.after=network-online.target"
+      "x-systemd.requires=network-online.target"
-    "x-systemd.mount-timeout=10s"  # how long to wait for mount **and** how long to wait for unmount
+      "x-systemd.after=network-online.target"
-  ];
+      "x-systemd.mount-timeout=10s"  # how long to wait for mount **and** how long to wait for unmount
-  auto = [ "x-systemd.automount" ];
+    ];
-  noauto = [ "noauto" ];  # don't mount as part of remote-fs.target
+    auto = [ "x-systemd.automount" ];
-  wg = [
+    noauto = [ "noauto" ];  # don't mount as part of remote-fs.target
-    "x-systemd.requires=wireguard-wg-home.service"
+    wg = [
-    "x-systemd.after=wireguard-wg-home.service"
+      "x-systemd.requires=wireguard-wg-home.service"
-  ];
+      "x-systemd.after=wireguard-wg-home.service"
+    ];
 
-  ssh = common ++ [
+    ssh = common ++ [
-    "identityfile=/home/colin/.ssh/id_ed25519"
+      "identityfile=/home/colin/.ssh/id_ed25519"
-    "allow_other"
+      "allow_other"
-    "default_permissions"
+      "default_permissions"
-  ];
+    ];
-  sshColin = ssh ++ [
+    sshColin = ssh ++ [
-    "transform_symlinks"
+      "transform_symlinks"
-    "idmap=user"
+      "idmap=user"
-    "uid=1000"
+      "uid=1000"
-    "gid=100"
+      "gid=100"
-  ];
+    ];
-  sshRoot = ssh ++ [
+    sshRoot = ssh ++ [
-    # we don't transform_symlinks because that breaks the validity of remote /nix stores
+      # we don't transform_symlinks because that breaks the validity of remote /nix stores
-    "sftp_server=/run/wrappers/bin/sudo\\040/run/current-system/sw/libexec/sftp-server"
+      "sftp_server=/run/wrappers/bin/sudo\\040/run/current-system/sw/libexec/sftp-server"
-  ];
+    ];
-  # in the event of hunt NFS mounts, consider:
+    # in the event of hunt NFS mounts, consider:
-  # - <https://unix.stackexchange.com/questions/31979/stop-broken-nfs-mounts-from-locking-a-directory>
+    # - <https://unix.stackexchange.com/questions/31979/stop-broken-nfs-mounts-from-locking-a-directory>
 
-  # NFS options: <https://linux.die.net/man/5/nfs>
+    # NFS options: <https://linux.die.net/man/5/nfs>
-  # actimeo=n  = how long (in seconds) to cache file/dir attributes (default: 3-60s)
+    # actimeo=n  = how long (in seconds) to cache file/dir attributes (default: 3-60s)
-  # bg         = retry failed mounts in the background
+    # bg         = retry failed mounts in the background
-  # retry=n    = for how many minutes `mount` will retry NFS mount operation
+    # retry=n    = for how many minutes `mount` will retry NFS mount operation
-  # soft       = on "major timeout", report I/O error to userspace
+    # soft       = on "major timeout", report I/O error to userspace
-  # retrans=n  = how many times to retry a NFS request before giving userspace a "server not responding" error (default: 3)
+    # retrans=n  = how many times to retry a NFS request before giving userspace a "server not responding" error (default: 3)
-  # timeo=n    = number of *deciseconds* to wait for a response before retrying it (default: 600)
+    # timeo=n    = number of *deciseconds* to wait for a response before retrying it (default: 600)
-  #              note: client uses a linear backup, so the second request will have double this timeout, then triple, etc.
+    #              note: client uses a linear backup, so the second request will have double this timeout, then triple, etc.
-  nfs = common ++ [
+    nfs = common ++ [
-    # "actimeo=10"
+      # "actimeo=10"
-    "bg"
+      "bg"
-    "retrans=4"
+      "retrans=4"
-    "retry=0"
+      "retry=0"
-    "soft"
+      "soft"
-    "timeo=15"
+      "timeo=15"
-    "nofail"  # don't fail remote-fs.target when this mount fails  (not an option for sshfs else would be common)
+      "nofail"  # don't fail remote-fs.target when this mount fails  (not an option for sshfs else would be common)
-  ];
+    ];
-};
+  };
+  remoteHome = host: {
+    fileSystems."/mnt/${host}-home" = {
+      device = "colin@${host}:/home/colin";
+      fsType = "fuse.sshfs";
+      options = fsOpts.sshColin ++ fsOpts.noauto;
+      noCheck = true;
+    };
+    sane.fs."/mnt/${host}-home" = sane-lib.fs.wantedDir;
+  };
 in
-{
+lib.mkMerge [
-  # some services which use private directories error if the parent (/var/lib/private) isn't 700.
+  {
-  sane.fs."/var/lib/private".dir.acl.mode = "0700";
+    # some services which use private directories error if the parent (/var/lib/private) isn't 700.
+    sane.fs."/var/lib/private".dir.acl.mode = "0700";
 
-  # in-memory compressed RAM
+    # in-memory compressed RAM
-  # defaults to compressing at most 50% size of RAM
+    # defaults to compressing at most 50% size of RAM
-  # claimed compression ratio is about 2:1
+    # claimed compression ratio is about 2:1
-  # - but on moby w/ zstd default i see 4-7:1  (ratio lowers as it fills)
+    # - but on moby w/ zstd default i see 4-7:1  (ratio lowers as it fills)
-  # note that idle overhead is about 0.05% of capacity (e.g. 2B per 4kB page)
+    # note that idle overhead is about 0.05% of capacity (e.g. 2B per 4kB page)
-  # docs: <https://www.kernel.org/doc/Documentation/blockdev/zram.txt>
+    # docs: <https://www.kernel.org/doc/Documentation/blockdev/zram.txt>
-  #
+    #
-  # to query effectiveness:
+    # to query effectiveness:
-  # `cat /sys/block/zram0/mm_stat`. whitespace separated fields:
+    # `cat /sys/block/zram0/mm_stat`. whitespace separated fields:
-  # - *orig_data_size*  (bytes)
+    # - *orig_data_size*  (bytes)
-  # - *compr_data_size* (bytes)
+    # - *compr_data_size* (bytes)
-  # - mem_used_total    (bytes)
+    # - mem_used_total    (bytes)
-  # - mem_limit         (bytes)
+    # - mem_limit         (bytes)
-  # - mem_used_max      (bytes)
+    # - mem_used_max      (bytes)
-  # - *same_pages*  (pages which are e.g. all zeros (consumes no additional mem))
+    # - *same_pages*  (pages which are e.g. all zeros (consumes no additional mem))
-  # - *pages_compacted*  (pages which have been freed thanks to compression)
+    # - *pages_compacted*  (pages which have been freed thanks to compression)
-  # - huge_pages  (incompressible)
+    # - huge_pages  (incompressible)
-  #
+    #
-  # see also:
+    # see also:
-  # - `man zramctl`
+    # - `man zramctl`
-  zramSwap.enable = true;
+    zramSwap.enable = true;
-  # how much ram can be swapped into the zram device.
+    # how much ram can be swapped into the zram device.
-  # this shouldn't be higher than the observed compression ratio.
+    # this shouldn't be higher than the observed compression ratio.
-  # the default is 50% (why?)
+    # the default is 50% (why?)
-  # 100% should be "guaranteed" safe so long as the data is even *slightly* compressible.
+    # 100% should be "guaranteed" safe so long as the data is even *slightly* compressible.
-  # but it decreases working memory under the heaviest of loads by however much space the compressed memory occupies (e.g. 50% if 2:1; 25% if 4:1)
+    # but it decreases working memory under the heaviest of loads by however much space the compressed memory occupies (e.g. 50% if 2:1; 25% if 4:1)
-  zramSwap.memoryPercent = 100;
+    zramSwap.memoryPercent = 100;
 
-  # fileSystems."/mnt/servo-nfs" = {
+    # fileSystems."/mnt/servo-nfs" = {
-  #   device = "servo-hn:/";
+    #   device = "servo-hn:/";
-  #   noCheck = true;
+    #   noCheck = true;
-  #   fsType = "nfs";
+    #   fsType = "nfs";
-  #   options = fsOpts.nfs ++ fsOpts.auto ++ fsOpts.wg;
+    #   options = fsOpts.nfs ++ fsOpts.auto ++ fsOpts.wg;
-  # };
+    # };
-  fileSystems."/mnt/servo-nfs/media" = {
+    fileSystems."/mnt/servo-nfs/media" = {
-    device = "servo-hn:/media";
+      device = "servo-hn:/media";
-    noCheck = true;
+      noCheck = true;
-    fsType = "nfs";
+      fsType = "nfs";
-    options = fsOpts.nfs ++ fsOpts.auto ++ fsOpts.wg;
+      options = fsOpts.nfs ++ fsOpts.auto ++ fsOpts.wg;
-  };
+    };
-  # fileSystems."/mnt/servo-media-nfs" = {
+    fileSystems."/mnt/servo-nfs/playground" = {
-  #   device = "servo-hn:/media";
+      device = "servo-hn:/playground";
-  #   noCheck = true;
+      noCheck = true;
-  #   fsType = "nfs";
+      fsType = "nfs";
-  #   options = fsOpts.common ++ fsOpts.auto;
+      options = fsOpts.nfs ++ fsOpts.auto ++ fsOpts.wg;
-  # };
+    };
-  sane.fs."/mnt/servo-media" = sane-lib.fs.wantedSymlinkTo "/mnt/servo-nfs/media";
+    # fileSystems."/mnt/servo-media-nfs" = {
+    #   device = "servo-hn:/media";
+    #   noCheck = true;
+    #   fsType = "nfs";
+    #   options = fsOpts.common ++ fsOpts.auto;
+    # };
+    sane.fs."/mnt/servo-media" = sane-lib.fs.wantedSymlinkTo "/mnt/servo-nfs/media";
 
-  fileSystems."/mnt/desko-home" = {
+    environment.pathsToLink = [
-    device = "colin@desko:/home/colin";
+      # needed to achieve superuser access for user-mounted filesystems (see optionsRoot above)
-    fsType = "fuse.sshfs";
+      # we can only link whole directories here, even though we're only interested in pkgs.openssh
-    options = fsOpts.sshColin ++ fsOpts.noauto;
+      "/libexec"
-    noCheck = true;
+    ];
-  };
-  sane.fs."/mnt/desko-home" = sane-lib.fs.wantedDir;
-  fileSystems."/mnt/desko-root" = {
-    device = "colin@desko:/";
-    fsType = "fuse.sshfs";
-    options = fsOpts.sshRoot ++ fsOpts.noauto;
-    noCheck = true;
-  };
-  sane.fs."/mnt/desko-root" = sane-lib.fs.wantedDir;
 
-  environment.pathsToLink = [
+    environment.systemPackages = [
-    # needed to achieve superuser access for user-mounted filesystems (see optionsRoot above)
+      pkgs.sshfs-fuse
-    # we can only link whole directories here, even though we're only interested in pkgs.openssh
+    ];
-    "/libexec"
+  }
-  ];
 
-  environment.systemPackages = [
+  (remoteHome "desko")
-    pkgs.sshfs-fuse
+  (remoteHome "lappy")
-  ];
+  (remoteHome "moby")
-}
+]
 

hosts/common/hardware/default.nix

@@ -1,6 +1,10 @@
 { lib, pkgs, ... }:
 
 {
+  imports = [
+    ./x86_64.nix
+  ];
+
   boot.initrd.supportedFilesystems = [ "ext4" "btrfs" "ext2" "ext3" "vfat" ];
   # useful emergency utils
   boot.initrd.extraUtilsCommands = ''
@@ -26,6 +30,20 @@
 
   # powertop will default to putting USB devices -- including HID -- to sleep after TWO SECONDS
   powerManagement.powertop.enable = false;
+  # linux CPU governor: <https://www.kernel.org/doc/Documentation/cpu-freq/governors.txt>
+  # - options:
+  #   - "powersave" => force CPU to always run at lowest supported frequency
+  #   - "performance" => force CPU to always run at highest frequency
+  #   - "ondemand" => adjust frequency based on load
+  #   - "conservative"  (ondemand but slower to adjust)
+  #   - "schedutil"
+  #   - "userspace"
+  # - not all options are available for all platforms
+  #   - intel (intel_pstate) appears to manage scaling w/o intervention/control from the OS.
+  #   - AMD (acpi-cpufreq) appears to manage scaling via the OS *or* HW. but the ondemand defaults never put it to max hardware frequency.
+  #   - qualcomm (cpufreq-dt) appears to manage scaling *only* via the OS. ondemand governor exercises the full range.
+  # - query details with `sudo cpupower frequency-info`
+  powerManagement.cpuFreqGovernor = "ondemand";
 
   services.logind.extraConfig = ''
     # don’t shutdown when power button is short-pressed

hosts/common/hardware/x86_64.nix

@@ -9,12 +9,7 @@
       # efi_pstore evivars
     ];
 
-    powerManagement.cpuFreqGovernor = "powersave";
     hardware.cpu.amd.updateMicrocode = true;    # desktop
     hardware.cpu.intel.updateMicrocode = true;  # laptop
-
-    hardware.opengl.driSupport = true;
-    # For 32 bit applications
-    hardware.opengl.driSupport32Bit = true;
   };
 }

hosts/common/hosts.nix

@@ -0,0 +1,39 @@
+{ lib, ... }:
+
+{
+  # TODO: this should be populated per-host
+  sane.hosts.by-name."desko" = {
+    ssh.user_pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPU5GlsSfbaarMvDA20bxpSZGWviEzXGD8gtrIowc1pX";
+    ssh.host_pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFw9NoRaYrM6LbDd3aFBc4yyBlxGQn8HjeHd/dZ3CfHk";
+    wg-home.pubkey = "17PMZssYi0D4t2d0vbmhjBKe1sGsE8kT8/dod0Q2CXc=";
+    wg-home.ip = "10.0.10.22";
+    lan-ip = "10.78.79.52";
+  };
+
+  sane.hosts.by-name."lappy" = {
+    ssh.user_pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDpmFdNSVPRol5hkbbCivRhyeENzb9HVyf9KutGLP2Zu";
+    ssh.host_pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILSJnqmVl9/SYQ0btvGb0REwwWY8wkdkGXQZfn/1geEc";
+    wg-home.pubkey = "FTUWGw2p4/cEcrrIE86PWVnqctbv8OYpw8Gt3+dC/lk=";
+    wg-home.ip = "10.0.10.20";
+    lan-ip = "10.78.79.53";
+  };
+
+  sane.hosts.by-name."moby" = {
+    ssh.authorized = lib.mkDefault false;  # moby's too easy to hijack: don't let it ssh places
+    ssh.user_pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICrR+gePnl0nV/vy7I5BzrGeyVL+9eOuXHU1yNE3uCwU";
+    ssh.host_pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIO1N/IT3nQYUD+dBlU1sTEEVMxfOyMkrrDeyHcYgnJvw";
+    wg-home.pubkey = "I7XIR1hm8bIzAtcAvbhWOwIAabGkuEvbWH/3kyIB1yA=";
+    wg-home.ip = "10.0.10.48";
+    lan-ip = "10.78.79.54";
+  };
+
+  sane.hosts.by-name."servo" = {
+    ssh.authorized = lib.mkDefault false;  # servo presents too many services to the internet: easy atack vector
+    ssh.user_pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPS1qFzKurAdB9blkWomq8gI1g0T3sTs9LsmFOj5VtqX";
+    ssh.host_pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOfdSmFkrVT6DhpgvFeQKm3Fh9VKZ9DbLYOPOJWYQ0E8";
+    wg-home.pubkey = "roAw+IUFVtdpCcqa4khB385Qcv9l5JAB//730tyK4Wk=";
+    wg-home.ip = "10.0.10.5";
+    wg-home.endpoint = "uninsane.org:51820";
+    lan-ip = "10.78.79.51";
+  };
+}

hosts/common/ids.nix

@@ -44,6 +44,11 @@
   sane.ids.sftpgo.gid = 2410;
   sane.ids.trust-dns.uid = 2411;
   sane.ids.trust-dns.gid = 2411;
+  sane.ids.export.gid = 2412;
+  sane.ids.nfsuser.uid = 2413;
+  sane.ids.media.gid = 2414;
+  sane.ids.ntfy-sh.uid = 2415;
+  sane.ids.ntfy-sh.gid = 2415;
 
   sane.ids.colin.uid = 1000;
   sane.ids.guest.uid = 1100;
@@ -81,4 +86,8 @@
   sane.ids.rtkit.gid = 2307;
   # phosh
   sane.ids.feedbackd.gid = 2308;
+
+  # new moby users
+  sane.ids.eg25-control.uid = 2309;
+  sane.ids.eg25-control.gid = 2309;
 }

hosts/common/programs/alacritty.nix

@@ -0,0 +1,24 @@
+# alacritty terminal emulator
+# - config options: <https://github.com/alacritty/alacritty/blob/master/extra/man/alacritty.5.scd>
+#   - `man 5 alacritty`
+#   - defaults: <https://github.com/alacritty/alacritty/releases>  -> alacritty.yml
+# - irc: #alacritty on libera.chat
+{ lib, ... }:
+{
+  sane.programs.alacritty = {
+    env.TERMINAL = lib.mkDefault "alacritty";
+    # note: alacritty will switch to .toml config in 13.0 release
+    # - run `alacritty migrate` to convert the yaml to toml
+    fs.".config/alacritty/alacritty.yml".symlink.text = ''
+      font:
+        size: 14
+
+      key_bindings:
+        - { key: N,         mods: Control,        action: CreateNewWindow }
+        - { key: PageUp,    mods: Control,        action: ScrollPageUp }
+        - { key: PageDown,  mods: Control,        action: ScrollPageDown }
+        - { key: PageUp,    mods: Control|Shift,  action: ScrollPageUp }
+        - { key: PageDown,  mods: Control|Shift,  action: ScrollPageDown }
+    '';
+  };
+}

hosts/common/programs/assorted.nix

@@ -1,4 +1,4 @@
-{ pkgs, ... }:
+{ config, lib, pkgs, ... }:
 
 let
   declPackageSet = pkgs: {
@@ -44,13 +44,13 @@ in
       "sane-scripts.ssl-dump"
       "sane-scripts.sudo-redirect"
       "sane-scripts.sync-from-servo"
-      "sane-scripts.vpn-down"
+      "sane-scripts.vpn"
-      "sane-scripts.vpn-up"
       "sane-scripts.which"
       "sane-scripts.wipe-browser"
     ];
     "sane-scripts.sys-utils" = declPackageSet [
       "sane-scripts.ip-port-forward"
+      "sane-scripts.sync-music"
     ];
 
 
@@ -59,7 +59,9 @@ in
       "cacert.unbundled"  # some services require unbundled /etc/ssl/certs
       "cryptsetup"
       "dig"
+      "dtc"  # device tree [de]compiler
       "efibootmgr"
+      "ethtool"
       "fatresize"
       "fd"
       "file"
@@ -73,6 +75,7 @@ in
       "inetutils"  # for telnet
       "iotop"
       "iptables"
+      "iw"
       "jq"
       "killall"
       "lsof"
@@ -114,6 +117,7 @@ in
     #   - debugging?
     consoleUtils = declPackageSet [
       "alsaUtils"  # for aplay, speaker-test
+      "binutils"  # for strings; though this brings 80MB of unrelated baggage too
       # "cdrtools"
       "clinfo"
       "dmidecode"
@@ -126,7 +130,6 @@ in
       # "gopass"
       # "gopass-jsonapi"
       "helix"  # text editor
-      "kitty"  # TODO: move to GUI, but `ssh servo` from kitty sets `TERM=xterm-kitty` in the remove and breaks things
       "libsecret"  # for managing user keyrings. TODO: what needs this? lift into the consumer
       "lm_sensors"  # for sensors-detect. TODO: what needs this? lift into the consumer
       "lshw"
@@ -153,6 +156,7 @@ in
       "sudo"
       # "tageditor"  # music tagging
       # "unar"
+      "unzip"
       "wireguard-tools"
       "xdg-terminal-exec"
       "xdg-utils"  # for xdg-open
@@ -192,15 +196,17 @@ in
     ];
 
     devPkgs = declPackageSet [
+      "cargo"
       "clang"
       "nodejs"
+      "rustc"
       "tree-sitter"
     ];
 
 
     # INDIVIDUAL PACKAGE DEFINITIONS
 
-    dino.persist.private = [ ".local/share/dino" ];
+    cargo.persist.plaintext = [ ".cargo" ];
 
     # creds, but also 200 MB of node modules, etc
     discord.persist.private = [ ".config/discord" ];
@@ -212,10 +218,18 @@ in
 
     fluffychat-moby.persist.plaintext = [ ".local/share/chat.fluffy.fluffychat" ];
 
+    font-manager.package = pkgs.font-manager.override {
+      # build without the "Google Fonts" integration feature, to save closure / avoid webkitgtk_4_0
+      withWebkit = false;
+    };
+
     # MS GitHub stores auth token in .config
     # TODO: we can populate gh's stuff statically; it even lets us use the same oauth across machines
     gh.persist.private = [ ".config/gh" ];
 
+    "gnome.gnome-maps".persist.plaintext = [ ".cache/shumate" ];
+    "gnome.gnome-maps".persist.private = [ ".local/share/maps-places.json" ];
+
     # actual monero blockchain (not wallet/etc; safe to delete, just slow to regenerate)
     # XXX: is it really safe to persist this? it doesn't have info that could de-anonymize if captured?
     monero-gui.persist.plaintext = [ ".bitmonero" ];
@@ -251,4 +265,8 @@ in
     # zcash coins. safe to delete, just slow to regenerate (10-60 minutes)
     zecwallet-lite.persist.private = [ ".zcash" ];
   };
+
+  programs.feedbackd = lib.mkIf config.sane.programs.feedbackd.enabled {
+    enable = true;
+  };
 }

hosts/common/programs/calls.nix

@@ -0,0 +1,61 @@
+# GNOME calls
+# - <https://gitlab.gnome.org/GNOME/calls>
+# - both a dialer and a call handler.
+# - uses callaudiod dbus package.
+#
+# initial JMP.chat configuration:
+# - message @cheogram.com "reset sip account"  (this is not destructive, despite the name)
+# - the bot will reply with auto-generated username/password plus a SIP server endpoint.
+#   just copy those into gnome-calls' GUI configurator
+# - now gnome-calls can do outbound calls. inbound calls requires more chatting with the help bot
+#
+# my setup here is still very WIP.
+# open questions:
+# - can i receive calls even with GUI closed?
+#   - e.g. activated by callaudiod?
+#   - looks like `gnome-calls --daemon` does that?
+{ config, lib, ... }:
+let
+  cfg = config.sane.programs.calls;
+in
+{
+  sane.programs.calls = {
+    configOption = with lib; mkOption {
+      default = {};
+      type = types.submodule {
+        options.autostart = mkOption {
+          type = types.bool;
+          default = false;
+        };
+      };
+    };
+
+    persist.private = [
+      # ".cache/folks"      # contact avatars?
+      # ".config/calls"
+      ".local/share/calls"  # call "records"
+      # .local/share/folks  # contacts?
+    ];
+    secrets.".config/calls/sip-account.cfg" = ../../../secrets/common/gnome_calls_sip-account.cfg.bin;
+    suggestedPrograms = [
+      "feedbackd"  # needs `phone-incoming-call`, in particular
+    ];
+
+    services.gnome-calls = {
+      # TODO: prevent gnome-calls from daemonizing when started manually
+      description = "gnome-calls daemon to monitor incoming SIP calls";
+      wantedBy = lib.mkIf cfg.config.autostart [ "default.target" ];
+      serviceConfig = {
+        # add --verbose for more debugging
+        ExecStart = "${cfg.package}/bin/gnome-calls --daemon";
+        Type = "simple";
+        Restart = "always";
+        RestartSec = "10s";
+      };
+      environment.G_MESSAGES_DEBUG = "all";
+    };
+  };
+  programs.calls = lib.mkIf cfg.enabled {
+    enable = true;
+  };
+}

hosts/common/programs/cantata.nix

@@ -0,0 +1,36 @@
+# cantata is a mpd frontend.
+# before launching it, run `mopidy` in some tab
+# TODO: auto-launch mopidy when cantata launches?
+{ ... }:
+{
+  sane.programs.cantata = {
+    persist.plaintext = [
+      ".cache/cantata"  # album art
+      ".local/share/cantata/library"  # library index (?)
+    ];
+    fs.".config/cantata/cantata.conf".symlink.text = ''
+      [General]
+      fetchCovers=true
+      storeCoversInMpdDir=false
+      version=2.5.0
+
+      [Connection]
+      allowLocalStreaming=true
+      applyReplayGain=true
+      autoUpdate=false
+      dir=~/Music
+      host=localhost
+      partition=
+      passwd=
+      port=6600
+      replayGain=off
+      streamUrl=
+
+      [LibraryPage]
+      artist\gridZoom=100
+      artist\searchActive=false
+      artist\viewMode=detailedtree
+    '';
+    suggestedPrograms = [ "mopidy" ];
+  };
+}

hosts/common/programs/chatty.nix

@@ -24,7 +24,7 @@ let
         # frees us from webkit_4_1, in turn.
         enableBackend = false;
         gvfs = pkgs.gvfs.override {
-          # saves 20 minutes of build time, for unused feature
+          # saves 20 minutes of build time and cross issues, for unused feature
           samba = null;
         };
       };
@@ -38,7 +38,9 @@ in
     suggestedPrograms = [ "gnome-keyring" ];
     persist.private = [
       ".local/share/chatty"  # matrix avatars and files
-      # ".purple"  # XMPP stuff
+      # not just XMPP; without this Chatty will regenerate its device-id every boot.
+      # .purple/ contains XMPP *and* Matrix auth, logs, avatar cache, and a bit more
+      ".purple"
     ];
   };
 }

hosts/common/programs/conky/conky.conf

@@ -1,5 +1,3 @@
--- configversion: 737cb1de0389cee32a04785691a446a2
-
 -- docs: <https://conky.cc/variables>
 -- color names are X11 colors: <https://en.wikipedia.org/wiki/X11_color_names#Color_name_chart>
 -- - can also use #rrggbb syntax
@@ -29,7 +27,7 @@ conky.config = {
     default_shade_color = '#beebe5',
     default_outline_color = '#beebe5',
 
-    font = 'Sxmo:size=8',
+    font = 'sans-serif:size=8',
     use_xft = true,
 
     default_color = '#ffffff',
@@ -37,14 +35,16 @@ conky.config = {
     color2 = '404040',
 }
 
+-- texeci <interval_sec> <cmd>: run the command periodically, _in a separate thread_ so as not to block rendering
 conky.text = [[
-${color1}${shadecolor 707070}${font Sxmo:size=50:style=Bold}${alignc}${exec date +"%H:%M"}${font}
+${color1}${shadecolor 707070}${font sans-serif:size=50:style=Bold}${alignc}${exec date +"%H:%M"}${font}
-${color2}${shadecolor a4d7d0}${font Sxmo:size=20}${alignc}${exec date +"%a %d %b"}${font}
+${color2}${shadecolor a4d7d0}${font sans-serif:size=20}${alignc}${exec date +"%a %d %b"}${font}
 
 
-${color1}${shadecolor}${font Sxmo:size=22:style=Bold}${alignc}${exec @bat@ }${font}
+${color1}${shadecolor}${font sans-serif:size=22:style=Bold}${alignc}${exec @bat@ }${font}
+${color1}${shadecolor}${font sans-serif:size=20:style=Bold}${alignc}${texeci 600 @weather@ }${font}
 
 
-${color2}${shadecolor a4d7d0}${font Sxmo:size=16}${alignc}⇅ ${downspeedf wlan0}K/s${font}
+${color2}${shadecolor a4d7d0}${font sans-serif:size=16}${alignc}⇅ ${downspeedf wlan0}K/s${font}
-${font Sxmo:size=16}${alignc}☵ $memperc%  $cpu%${font}
+${font sans-serif:size=16}${alignc}☵ $memperc%  $cpu%${font}
 ]]

hosts/common/programs/conky/default.nix

@@ -0,0 +1,34 @@
+{ config, pkgs, ... }:
+{
+  sane.programs.conky = {
+    fs.".config/conky/conky.conf".symlink.target =
+      let
+        battery_estimate = pkgs.static-nix-shell.mkBash {
+          pname = "battery_estimate";
+          src = ./.;
+        };
+      in pkgs.substituteAll {
+        src = ./conky.conf;
+        bat = "${battery_estimate}/bin/battery_estimate";
+        weather = "timeout 20 ${pkgs.sane-weather}/bin/sane-weather";
+      };
+
+    services.conky = {
+      description = "conky dynamic desktop background";
+      wantedBy = [ "default.target" ];
+      # XXX: should be part of graphical-session.target, but whatever mix of greetd/sway
+      # i'm using means that target's never reached...
+      # wantedBy = [ "graphical-session.target" ];
+      # partOf = [ "graphical-session.target" ];
+
+      serviceConfig.ExecStart = "${config.sane.programs.conky.package}/bin/conky";
+      serviceConfig.Type = "simple";
+      serviceConfig.Restart = "on-failure";
+      serviceConfig.RestartSec = "10s";
+      # serviceConfig.Slice = "session.slice";
+
+      # don't start conky until after sway
+      preStart = ''test -n "$SWAYSOCK"'';
+    };
+  };
+}

hosts/common/programs/default.nix

@@ -3,44 +3,59 @@
 {
   imports = [
     ./aerc.nix
+    ./alacritty.nix
     ./assorted.nix
+    ./calls.nix
+    ./cantata.nix
     ./chatty.nix
+    ./conky
     ./cozy.nix
+    ./dino.nix
     ./element-desktop.nix
     ./epiphany.nix
     ./evince.nix
+    ./feedbackd.nix
     ./firefox.nix
     ./fontconfig.nix
     ./fractal.nix
     ./fwupd.nix
+    ./g4music.nix
+    ./gajim.nix
     ./git.nix
     ./gnome-feeds.nix
     ./gnome-keyring.nix
+    ./gnome-weather.nix
     ./gpodder.nix
     ./gthumb.nix
     ./helix.nix
     ./imagemagick.nix
     ./jellyfin-media-player.nix
-    ./kitty
     ./komikku.nix
     ./koreader
     ./libreoffice.nix
     ./lemoa.nix
+    ./mako.nix
     ./megapixels.nix
     ./mepo.nix
+    ./mopidy.nix
     ./mpv.nix
     ./msmtp.nix
     ./neovim.nix
     ./newsflash.nix
     ./nheko.nix
     ./nix-index.nix
+    ./ntfy-sh.nix
     ./obsidian.nix
     ./offlineimap.nix
+    ./playerctl.nix
+    ./rhythmbox.nix
     ./ripgrep.nix
     ./sfeed.nix
     ./splatmoji.nix
     ./steam.nix
+    ./stepmania.nix
     ./sublime-music.nix
+    ./swaynotificationcenter.nix
     ./tangram.nix
     ./tuba.nix
     ./vlc.nix

hosts/common/programs/dino.nix

@@ -0,0 +1,69 @@
+# usage:
+# - start a DM with a rando via
+#   - '+' -> 'start conversation'
+# - add a user to your roster via
+#   - '+' -> 'start conversation' -> '+'  (opens the "add contact" dialog)
+#   - this triggers a popup on the remote side asking them for confirmation
+#   - after the remote's confirmation there will be a local popup for you to allow them to add you to their roster
+# - to make a call:
+#   - ensure the other party is in your roster
+#   - open a DM with the party
+#   - click the phone icon at top (only visible if other party is in your roster)
+#
+# dino can be autostarted on login -- useful to ensure that i always receive calls and notifications --
+# but at present it has no "start in tray" type of option: it must render a window.
+#
+# outstanding bugs:
+# - mic is sometimes disabled at call start despite presenting as enabled
+#   - fix is to toggle it off -> on in the Dino UI
+# - default mic gain is WAY TOO MUCH (heavily distorted)
+# - TODO: dino should have more optimal niceness/priority to ensure it can process its buffers
+#
+# probably fixed:
+# - once per 1-2 minutes dino will temporarily drop mic input:
+#   - `rtp-WRNING: plugin.vala:148: Warning in pipeline: Can't record audio fast enough
+#   - this was *partially* fixed by bumping the pipewire mic buffer to 2048 samples (from ~512)
+#   - this was further fixed by setting PULSE_LATENCY_MSEC=20.
+#   - possibly Dino should be updated internally: `info.rate / 100` -> `info.rate / 50`.
+#     - i think that affects the batching for echo cancellation, adaptive gain control, etc.
+#
+{ config, lib, ... }:
+let
+  cfg = config.sane.programs.dino;
+in
+{
+  sane.programs.dino = {
+    configOption = with lib; mkOption {
+      default = {};
+      type = types.submodule {
+        options.autostart = mkOption {
+          type = types.bool;
+          default = false;
+        };
+      };
+    };
+
+    persist.private = [ ".local/share/dino" ];
+
+    services.dino = {
+      description = "auto-start and maintain dino XMPP connection";
+      wantedBy = lib.mkIf cfg.config.autostart [ "default.target" ];
+      serviceConfig = {
+        ExecStart = "${cfg.package}/bin/dino";
+        Type = "simple";
+        Restart = "always";
+        RestartSec = "20s";
+      };
+
+      # audio buffering; see: <https://gitlab.freedesktop.org/pipewire/pipewire/-/wikis/FAQ#pipewire-buffering-explained>
+      # dino defaults to 10ms mic buffer, which causes underruns, which Dino handles *very* poorly
+      # as in, the other end of the call will just not receive sound from us for a couple seconds.
+      # pipewire uses power-of-two buffering for the mic itself. that would put us at 21.33 ms, but this env var supports only whole numbers (21ms ends up not power-of-two).
+      # also, Dino's likely still doing things in 10ms batches internally anyway.
+      environment.PULSE_LATENCY_MSEC = "20";
+
+      # note that debug logging during calls produces so much journal spam that it pegs the CPU and causes dropped audio
+      # environment.G_MESSAGES_DEBUG = "all";
+    };
+  };
+}

hosts/common/programs/element-desktop.nix

@@ -1,3 +1,9 @@
+# debugging tips:
+# - if element opens but does not render:
+#   - `element-desktop --disable-gpu --in-process-gpu`
+#     - <https://github.com/vector-im/element-desktop/issues/1029#issuecomment-1632688224>
+#   - `rm -rf ~/.config/Element/GPUCache`
+#     - <https://github.com/NixOS/nixpkgs/issues/244486>
 { ... }:
 {
   sane.programs.element-desktop = {

hosts/common/programs/feedbackd.nix

@@ -0,0 +1,114 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.sane.programs.feedbackd;
+in
+{
+  sane.programs.feedbackd = {
+    package = pkgs.rmDbusServices pkgs.feedbackd;
+
+    configOption = with lib; mkOption {
+      type = types.submodule {
+        options.proxied = mkOption {
+          type = types.bool;
+          default = false;
+          description = ''
+          whether to use a sound theme in which common application events are muted
+          with the intent that a proxy (notification daemon) with knowledge of this
+          modification will "speak" on behalf of all applications.
+          '';
+        };
+      };
+      default = {};
+    };
+
+    # N.B.: feedbackd will load ~/.config/feedbackd/themes/default.json by default
+    # - but using that would forbid `parent-theme = "default"`
+    # the default theme ships support for these events:
+    # - alarm-clock-elapsed
+    # - battery-caution
+    # - bell-terminal
+    # - button-pressed
+    # - button-released
+    # - camera-focus
+    # - camera-shutter
+    # - message-missed-email
+    # - message-missed-instant
+    # - message-missed-notification
+    # - message-missed-sms
+    # - message-new-email
+    # - message-new-instant
+    # - message-new-sms
+    # - message-sent-instant
+    # - phone-failure
+    # - phone-hangup
+    # - phone-incoming-call
+    # - phone-missed-call
+    # - phone-outgoing-busy
+    # - screen-capture
+    # - theme-demo
+    # - timeout-completed
+    # - window-close
+    fs.".config/feedbackd/themes/proxied.json".symlink.text = builtins.toJSON {
+      name = "proxied";
+      parent-theme = "default";
+      profiles = [
+        {
+          name = "full";
+          feedbacks = [
+            # forcibly disable normal events which we'd prefer for the notification daemon (e.g. swaync) to handle
+            {
+              event-name = "message-new-instant";
+              type = "Dummy";
+            }
+            {
+              event-name = "proxied-message-new-instant";
+              type = "Sound";
+              effect = "message-new-instant";
+            }
+            # re-define sounds from the default theme which we'd like to pass through w/o proxying.
+            # i guess this means i'm not inheriting the default theme :|
+            {
+              event-name = "phone-incoming-call";
+              type = "Sound";
+              effect = "phone-incoming-call";
+            }
+            {
+              event-name = "alarm-clock-elapsed";
+              type = "Sound";
+              effect = "alarm-clock-elapsed";
+            }
+            {
+              event-name = "timeout-completed";
+              type = "Sound";
+              effect = "complete";
+            }
+          ];
+        }
+      ];
+    };
+
+    services.feedbackd = {
+      description = "feedbackd audio/vibration/led controller";
+      wantedBy = [ "default.target" ];
+      serviceConfig = {
+        ExecStart = "${cfg.package}/libexec/feedbackd";
+        Type = "simple";
+        Restart = "on-failure";
+        RestartSec = "10s";
+      };
+      environment = {
+        G_MESSAGES_DEBUG = "all";
+      } // (lib.optionalAttrs cfg.config.proxied {
+        FEEDBACK_THEME = "/home/colin/.config/feedbackd/themes/proxied.json";
+      });
+    };
+  };
+
+  services.udev.packages = lib.mkIf cfg.enabled [
+    # ships udev rules for `feedbackd` group to be able to control vibrator and LEDs
+    cfg.package
+  ];
+  users.groups = lib.mkIf cfg.enabled {
+    feedbackd = {};
+  };
+}

hosts/common/programs/fontconfig.nix

@@ -1,15 +1,68 @@
+# to preview fonts:
+# - `font-manager` (gui)
+#   - useful to determine official name; codepoint support
 { config, lib, pkgs, ... }:
+let
+  # nerdfonts takes popular open fonts and patches them to support a wider range of glyphs, notably emoji.
+  # any nerdfonts font includes icons such as these:
+  # - 󱊥 (battery charging)
+  # - 󰃝 (brightness)
+  # -  (gps / crosshairs)
+  # - 󰎈 (music note)
+  # - 󰍦 (message bubble)
+  # - 󰏲 (phone)
+  # -  (weather/sun-behind-clouds)
+  # used particularly by sxmo utilities, but also a few of my own (e.g. conky)
+  #
+  # nerdfonts is very heavy. each font is 20-900 MiB (2 MiB per "variation")
+  # lots of redundant data inside there, but no deduplication except whatever nix or the fs does implicitly.
+  wantedNerdfonts = [
+    # used explicitly by SXMO
+    # "DejaVuSansMono"  # 25 MiB
+    # good terminal/coding font. grab via nerdfonts for more emoji/unicode support
+    "Hack"  # 26 MiB
+    "Noto"  # 861 MiB
+  ];
+  nerdfontPkgs = builtins.map
+    (f: pkgs.nerdfonts.override { fonts = [ f ]; })
+    wantedNerdfonts;
+in
 {
   fonts = lib.mkIf config.sane.programs.fontconfig.enabled {
     fontconfig.enable = true;
     fontconfig.defaultFonts = {
-      emoji = [ "Font Awesome 6 Free" "Noto Color Emoji" ];
+      emoji = [
-      monospace = [ "Hack" ];
+        "Noto Color Emoji"
-      serif = [ "DejaVu Serif" ];
+        "Font Awesome 6 Free"
-      sansSerif = [ "DejaVu Sans" ];
+        "Font Awesome 6 Brands"
+      ];
+      monospace = [
+        "Hack Nerd Font Propo"
+        # "DejaVuSansM Nerd Font Propo"
+        "NotoMono Nerd Font Propo"
+      ];
+      serif = [
+        "NotoSerif Nerd Font"
+        "DejaVu Serif"
+      ];
+      sansSerif = [
+        "NotoSans Nerd Font"
+        "DejaVu Sans"
+      ];
     };
     #vvv enables dejavu_fonts, freefont_ttf, gyre-fonts, liberation_ttf, unifont, noto-fonts-emoji
-    enableDefaultPackages = true;
+    enableDefaultPackages = false;
-    packages = with pkgs; [ font-awesome noto-fonts-emoji hack-font ];
+    packages = with pkgs; [
+      # TODO: reduce this font set.
+      # - probably need only one of dejavu/freefont/liberation
+      dejavu_fonts  # 10 MiB; DejaVu {Sans,Serif,Sans Mono,Math TeX Gyre}; also available as a NerdFonts (Sans Mono only)
+      font-awesome  #  2 MiB; Font Awesome 6 {Free,Brands}
+      freefont_ttf  # 11 MiB; Free{Mono,Sans,Serif}
+      gyre-fonts    #  4 MiB; Tex Gyre *; ttf substitutes for standard PostScript fonts
+      # hack-font     #  1 MiB; Hack; also available as a NerdFonts
+      liberation_ttf # 4 MiB; Liberation {Mono,Sans,Serif}; also available as a NerdFonts
+      noto-fonts-color-emoji  # 10 Mib; Noto Color Emoji
+      unifont       # 16 MiB; Unifont; provides LOTS of unicode coverage
+    ] ++ nerdfontPkgs;
   };
 }

hosts/common/programs/fractal.nix

@@ -1,12 +1,41 @@
-{ pkgs, ... }:
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.sane.programs.fractal;
+in
 {
   sane.programs.fractal = {
+    package = pkgs.fractal-nixified;
     # package = pkgs.fractal-latest;
-    package = pkgs.fractal-next;
+    # package = pkgs.fractal-next;
 
-    # XXX by default fractal stores its state in ~/.local/share/stable/<UUID>.
+    configOption = with lib; mkOption {
-    persist.private = [ ".local/share/stable" ];
+      default = {};
+      type = types.submodule {
+        options.autostart = mkOption {
+          type = types.bool;
+          default = true;
+        };
+      };
+    };
+
+    persist.private = [
+      # XXX by default fractal stores its state in ~/.local/share/<build-profile>/<UUID>.
+      ".local/share/hack"    # for debug-like builds
+      ".local/share/stable"  # for normal releases
+    ];
 
     suggestedPrograms = [ "gnome-keyring" ];
+
+    services.fractal = {
+      description = "auto-start and maintain fractal Matrix connection";
+      wantedBy = lib.mkIf cfg.config.autostart [ "default.target" ];
+      serviceConfig = {
+        ExecStart = "${cfg.package}/bin/fractal";
+        Type = "simple";
+        Restart = "always";
+        RestartSec = "20s";
+      };
+      # environment.G_MESSAGES_DEBUG = "all";
+    };
   };
 }

hosts/common/programs/g4music.nix

@@ -0,0 +1,16 @@
+# N.B.: requires first-run setup on moby:
+# - UI will render transparent
+# - click the hamburger (top-right: immediately left from close button)
+#   > Preferences
+#     > Background-blur mode: change from "Always" to "Never"
+#
+# the background blur is probably some dconf setting somewhere.
+{ ... }:
+{
+  sane.programs.g4music = {
+    persist.plaintext = [
+      # index?
+      ".cache/com.github.neithern.g4music"
+    ];
+  };
+}

hosts/common/programs/gajim.nix

@@ -0,0 +1,13 @@
+{ ... }:
+{
+  sane.programs.gajim = {
+    persist.private = [
+      # avatars, thumbnails...
+      ".cache/gajim"
+      # sqlite database labeled "settings". definitely includes UI theming
+      ".config/gajim"
+      # omemo keys, downloads, logs
+      ".local/share/gajim"
+    ];
+  };
+}

hosts/common/programs/gnome-weather.nix

@@ -0,0 +1,10 @@
+# preferences are saved via dconf; see `dconf dump /`
+# cache dir is just for weather data (or maybe a http cache)
+{ ... }:
+{
+  sane.programs.gnome-weather = {
+    persist.plaintext = [
+      ".cache/libgweather"
+    ];
+  };
+}

hosts/common/programs/gthumb.nix

@@ -4,10 +4,12 @@
     # compile without webservices to avoid the expensive webkitgtk dependency
     package = pkgs.gthumb.override { withWebservices = false; };
     mime.associations = {
+      "image/gif" = "org.gnome.gThumb.desktop";
       "image/heif" = "org.gnome.gThumb.desktop";  # apple codec
       "image/png" = "org.gnome.gThumb.desktop";
       "image/jpeg" = "org.gnome.gThumb.desktop";
       "image/svg+xml" = "org.gnome.gThumb.desktop";
+      "image/webp" = "org.gnome.gThumb.desktop";
     };
   };
 }

hosts/common/programs/kitty/PaperColor_dark.conf

@@ -1,47 +0,0 @@
-# vim:ft=kitty
-
-## name: PaperColor Dark
-## author: Nikyle Nguyen
-## license: MIT
-## blurb: Dark color scheme inspired by Google's Material Design 
-
-# special
-foreground		#d0d0d0
-background		#1c1c1c
-cursor			#d0d0d0
-cursor_text_color	background
-
-# black
-color0			#1c1c1c
-color8			#585858
-
-# red
-color1			#af005f
-color9			#5faf5f
-
-# green
-# "color2" is the green color used by ls to indicate executability
-#   both as text color
-#   or as bg color when the text is blue (color4)
-color2			#246a28
-color10			#2df200
-
-# yellow
-color3			#d7af5f
-color11			#af87d7
-
-# blue
-color4			#78c6ef
-color12			#ffaf00
-
-# magenta
-color5			#808080
-color13			#ff5faf
-
-# cyan
-color6			#d7875f
-color14			#00afaf
-
-# white
-color7			#d0d0d0
-color15			#5f8787

hosts/common/programs/kitty/default.nix

@@ -1,73 +0,0 @@
-{ lib, ... }:
-
-{
-  sane.programs.kitty = {
-    fs.".config/kitty/kitty.conf".symlink.text = ''
-      # docs: https://sw.kovidgoyal.net/kitty/conf/
-      # disable terminal bell (when e.g. you backspace too many times)
-      enable_audio_bell no
-
-      map ctrl+n new_os_window_with_cwd
-      include ${./PaperColor_dark.conf}
-    '';
-    env.TERMINAL = lib.mkDefault "kitty";
-  };
-
-  #  include ${pkgs.kitty-themes}/themes/PaperColor_dark.conf
-
-  # THEME CHOICES:
-  #   docs: https://github.com/kovidgoyal/kitty-themes
-  # theme = "1984 Light";  # dislike: awful, harsh blues/teals
-  # theme = "Adventure Time";  # dislike: harsh (dark)
-  # theme = "Atom One Light";  # GOOD: light theme. all color combos readable. not a huge fan of the blue.
-  # theme = "Belafonte Day";  # dislike: too low contrast for text colors
-  # theme = "Belafonte Night";  # better: dark theme that's easy on the eyes. all combos readable. low contrast.
-  # theme = "Catppuccin";  # dislike: a bit pale/low-contrast (dark)
-  # theme = "Desert";  # mediocre: colors are harsh
-  # theme = "Earthsong";  # BEST: dark theme. readable, good contrast. unique, but decent colors.
-  # theme = "Espresso Libre";  # better: dark theme. readable, but meh colors
-  # theme = "Forest Night";  # decent: very pastel. it's workable, but unconventional and muted/flat.
-  # theme = "Gruvbox Material Light Hard";  # mediocre light theme.
-  # theme = "kanagawabones";  # better: dark theme. colors are too background-y
-  # theme = "Kaolin Dark";  # dislike: too dark
-  # theme = "Kaolin Breeze";  # mediocre: not-too-harsh light theme, but some parts are poor contrast
-  # theme = "Later This Evening";  # mediocre: not-too-harsh dark theme, but cursor is poor contrast
-  # theme = "Material"; # decent: light theme, few colors.
-  # theme = "Mayukai";  # decent: not-too-harsh dark theme. the teal is a bit straining
-  # theme = "Nord";  # mediocre: pale background, low contrast
-  # theme = "One Half Light";  # better: not-too-harsh light theme. contrast could be better
-  # theme = "PaperColor Dark";  # BEST: dark theme, very readable still the colors are background-y
-  # theme = "Parasio Dark";  # dislike: too low contrast
-  # theme = "Pencil Light";  # better: not-too-harsh light theme. decent contrast.
-  # theme = "Pnevma";  # dislike: too low contrast
-  # theme = "Piatto Light";  # better: readable light theme. pleasing colors. powerline prompt is hard to read.
-  # theme = "Rosé Pine Dawn";  # GOOD: light theme. all color combinations are readable. it is very mild -- may need to manually tweak contrast. tasteful colors
-  # theme = "Rosé Pine Moon";  # GOOD: dark theme. tasteful colors. but background is a bit intense
-  # theme = "Sea Shells";  # mediocre. not all color combos are readable
-  # theme = "Solarized Light";  # mediocre: not-too-harsh light theme; GREAT background; but some colors are low contrast
-  # theme = "Solarized Dark Higher Contrast";  # better: dark theme, decent colors
-  # theme = "Sourcerer";  # mediocre: ugly colors
-  # theme = "Space Gray";  # mediocre: too muted
-  # theme = "Space Gray Eighties";  # better: all readable, decent colors
-  # theme = "Spacemacs";  # mediocre: too muted
-  # theme = "Spring";  # mediocre: readable light theme, but the teal is ugly.
-  # theme = "Srcery";  # better: highly readable. colors are ehhh
-  # theme = "Substrata";  # decent: nice colors, but a bit flat.
-  # theme = "Sundried";  # mediocre: the solar text makes me squint
-  # theme = "Symfonic";  # mediocre: the dark purple has low contrast to the black bg.
-  # theme = "Tango Light";  # dislike: teal is too grating
-  # theme = "Tokyo Night Day";  # medicore: too muted
-  # theme = "Tokyo Night";  # better: tasteful. a bit flat
-  # theme = "Tomorrow";  # GOOD: all color combinations are readable. contrast is slightly better than Rose. on the blander side
-  # theme = "Treehouse";  # dislike: the orange is harsh on my eyes.
-  # theme = "Urple";  # dislike: weird palette
-  # theme = "Warm Neon";  # decent: not-too-harsh dark theme. the green is a bit unattractive
-  # theme = "Wild Cherry";  # GOOD: dark theme: nice colors. a bit flat
-  # theme = "Xcodedark";  # dislike: bad palette
-  # theme = "citylights";  # decent: dark theme. some parts have just a bit low contrast
-  # theme = "neobones_light"; # better light theme. the background is maybe too muted
-  # theme = "vimbones";
-  # theme = "zenbones_dark";  # mediocre: readable, but meh colors
-  # theme = "zenbones_light";  # decent: light theme. all colors are readable. contrast is passable but not excellent. highlight color is BAD
-  # theme = "zenwritten_dark";  # mediocre: looks same as zenbones_dark
-}

hosts/common/programs/mako.nix

@@ -0,0 +1,67 @@
+# config docs:
+# - `man 5 mako`
+{ config, lib, pkgs, ... }:
+{
+  sane.programs.mako = {
+    # we control mako as a systemd service, so have dbus not automatically activate it.
+    package = pkgs.rmDbusServices pkgs.mako;
+    fs.".config/mako/config".symlink.text = ''
+      # notification interaction mapping
+      # "on-touch" defaults to "dismiss", which isn't nice for touchscreens.
+      on-button-left=invoke-default-action
+      on-touch=invoke-default-action
+      on-button-middle=dismiss-group
+
+      max-visible=3
+      # layer:
+      # - overlay: shows notifs above all else, even full-screen windows
+      # - top: shows notifs above windows, but not if they're full-screen
+      # - bottom; background
+      layer=overlay
+      # notifications can be grouped by:
+      # - app-name
+      # - app-icon
+      # - summary
+      # - body
+      # possibly more: urgency, category, desktop-entry, ...
+      # to group by multiple fields, join with `,`
+      group-by=app-name
+
+      # BELOW IS SXMO DEFAULTS, modified very slightly.
+      # TODO: apply theme colors!
+
+      # default-timeout=15000
+      background-color=#ffffff
+      text-color=#000000
+      border-color=#000000
+      # group-by=app-name
+
+      [urgency=low]
+      # default-timeout=10000
+      background-color=#222222
+      text-color=#888888
+
+      [urgency=high]
+      default-timeout=0
+      background-color=#900000
+      text-color=#ffffff
+      background-color=#ff0000
+    '';
+
+    # mako supports activation via dbus (i.e. the daemon will be started on-demand when a
+    # dbus client tries to talk to it): that works out-of-the-box just by putting mako
+    # on environment.packages, but then logs are blackholed.
+    services.mako = {
+      description = "mako desktop notification daemon";
+      wantedBy = [ "default.target" ];
+      # XXX: should be part of graphical-session.target, but whatever mix of greetd/sway
+      # i'm using means that target's never reached...
+
+      serviceConfig.ExecStart = "${config.sane.programs.mako.package}/bin/mako";
+      serviceConfig.Type = "simple";
+      # mako will predictably fail if launched before the wayland server is fully initialized
+      serviceConfig.Restart = "on-failure";
+      serviceConfig.RestartSec = "10s";
+    };
+  };
+}

hosts/common/programs/mopidy.nix

@@ -0,0 +1,56 @@
+# chat: <https://mopidy.zulipchat.com/>
+# config docs: <https://docs.mopidy.com/en/latest/config/>
+# web client: <http://localhost:6680>
+# mpd: hosted on `localhost:6600`, no password`
+#
+# dump config:
+# - `mopidy config`
+# update local file index with
+# - `mopidy local scan`
+#
+# if running as service, those commands are `mopidy --config ... <command>`
+# and config path is found by `systemctl cat mopidy`
+{ config, lib, pkgs, ... }:
+
+let
+  # TODO: upstream this as `mopidy.withExtensions`
+  # this is borrowed from the nixos mopidy service
+  mopidyWithExtensions = extensions: with pkgs; buildEnv {
+    name = "mopidy-with-extensions-${mopidy.version}";
+
+    paths = lib.closePropagation extensions;
+    pathsToLink = [ "/${mopidyPackages.python.sitePackages}" ];
+    nativeBuildInputs = [ makeWrapper ];
+    postBuild = ''
+      makeWrapper ${mopidy}/bin/mopidy $out/bin/mopidy \
+        --prefix PYTHONPATH : $out/${mopidyPackages.python.sitePackages}
+    '';
+  };
+in
+{
+  sane.programs.mopidy = {
+    package = mopidyWithExtensions (with pkgs; [
+      mopidy-iris  # web client: <https://github.com/jaedb/Iris>
+      mopidy-jellyfin
+      mopidy-local
+      mopidy-mpd
+      mopidy-mpris
+      mopidy-spotify
+      # TODO: mopidy-podcast, mopidy-youtube
+
+      # alternate web clients:
+      # mopidy-moped: <https://github.com/martijnboland/moped>
+      # mopidy-muse: <https://github.com/cristianpb/muse>
+    ]);
+    persist.plaintext = [
+      ".local/share/mopidy/local"  # thumbs, library db
+    ];
+    persist.private = [
+      ".local/share/mopidy/http"  # cookie
+    ];
+    secrets.".config/mopidy/mopidy.conf" = ../../../secrets/common/mopidy.conf.bin;
+    # other folders:
+    # - .cache/mopidy
+    # - .config/mopidy
+  };
+}

hosts/common/programs/mpv.nix

@@ -8,17 +8,41 @@
 {
   sane.programs.mpv = {
     package = pkgs.wrapMpv pkgs.mpv-unwrapped {
-      youtubeSupport = false;  #< XXX(2023/08/03): doesn't cross compile until next staging -> master merge
       scripts = with pkgs.mpvScripts; [
         mpris
         # uosc
         pkgs.mpv-uosc-latest
       ];
+      extraMakeWrapperArgs = [
+        # 2023/08/29: fixes an error where mpv on moby launches with the message
+        #   "DRM_IOCTL_MODE_CREATE_DUMB failed: Cannot allocate memory"
+        #   audio still works, and controls, screenshotting, etc -- just not the actual rendering
+        # this is likely a regression for mpv 0.36.0.
+        # the actual error message *appears* to come from the mesa library, but it's tough to trace.
+        # run with `--vo=help` to see a list of all output options.
+        # non-exhaustive (F=fails, W=works)
+        # ? libmpv           render API for libmpv
+        # ? gpu              Shader-based GPU Renderer
+        # ? gpu-next         Video output based on libplacebo
+        # ? vdpau            VDPAU with X11
+        # ? wlshm            Wayland SHM video output (software scaling)
+        # ? xv               X11/Xv
+        # W sdl              SDL 2.0 Renderer
+        # F dmabuf-wayland   Wayland dmabuf video output
+        # ? vaapi            VA API with X11
+        # ? x11              X11 (software scaling)
+        # ? null             Null video output
+        # ? caca             libcaca
+        # F drm              Direct Rendering Manager (software scaling)
+        "--add-flags" "--vo=sdl"
+      ];
     };
-    persist.plaintext = [ ".config/mpv/watch_later" ];
+    persist.plaintext = [ ".local/state/mpv/watch_later" ];
     fs.".config/mpv/input.conf".symlink.text = ''
-      # let volume keys be interpreted by the system.
+      # let volume/power keys be interpreted by the system.
       # this is important for sxmo.
+      # mpv defaults is POWER = close, VOLUME_{UP,DOWN} = adjust application-level volume
+      POWER ignore
       VOLUME_UP ignore
       VOLUME_DOWN ignore
     '';
@@ -26,6 +50,10 @@
       save-position-on-quit=yes
       keep-open=yes
 
+      # force GUI, even for tracks w/o album art
+      # see: <https://www.reddit.com/r/mpv/comments/rvrrpt/oscosdgui_and_arch_linux/>
+      player-operation-mode=pseudo-gui
+
       # use uosc instead (for On Screen Controls)
       osc=no
       # uosc provides its own seeking/volume indicators, so you also don't need this
@@ -69,7 +97,8 @@
       ui_scale=1.0
     '';
 
-    mime.priority = 200;  # default = 100; 200 means to yield to other apps
+    # mime.priority = 200;  # default = 100; 200 means to yield to other apps
+    mime.priority = 50;  # default = 100; 50 in order to take precedence over vlc.
     mime.associations."audio/flac" = "mpv.desktop";
     mime.associations."audio/mpeg" = "mpv.desktop";
     mime.associations."audio/x-vorbis+ogg" = "mpv.desktop";

hosts/common/programs/neovim.nix

@@ -91,6 +91,10 @@ in
     env.EDITOR = "vim";
     # git claims it should use EDITOR, but it doesn't!
     env.GIT_EDITOR = "vim";
+    mime.priority = 200;  # default=100 => yield to other, more specialized applications
+    mime.associations."application/schema+json" = "nvim.desktop";
+    mime.associations."plain/text" = "nvim.desktop";
+    mime.associations."text/markdown" = "nvim.desktop";
   };
 
   programs.neovim = mkIf config.sane.programs.neovim.enabled {

hosts/common/programs/ntfy-sh.nix

@@ -0,0 +1,40 @@
+# notification system, used especially to remotely wake moby
+# source: <https://github.com/binwiederhier/ntfy>
+# docs: <https://docs.ntfy.sh/>
+#
+# send a test notification with:
+# - `ntfy pub "https://ntfy.uninsane.org/$(cat ~/.config/ntfy-sh/topic)" test`
+{ config, lib, ... }:
+let
+  cfg = config.sane.programs.ntfy-sh;
+in
+{
+  sane.programs.ntfy-sh = {
+    configOption = with lib; mkOption {
+      default = {};
+      type = types.submodule {
+        options.autostart = mkOption {
+          type = types.bool;
+          default = false;
+        };
+      };
+    };
+
+    secrets.".config/ntfy-sh/topic" = ../../../secrets/common/ntfy-sh-topic.bin;
+
+    services.ntfy-sub = {
+      description = "listen for push-notifications";
+      wantedBy = lib.mkIf cfg.config.autostart [ "default.target" ];
+      path = [ cfg.package ];
+      script = ''
+        topic=$(cat ~/.config/ntfy-sh/topic)
+        ntfy sub "https://ntfy.uninsane.org:2587/$topic"
+      '';
+      serviceConfig = {
+        Type = "simple";
+        Restart = "always";
+        RestartSec = "20s";
+      };
+    };
+  };
+}

hosts/common/programs/playerctl.nix

@@ -0,0 +1,14 @@
+{ config, lib, ... }:
+{
+  sane.programs.playerctl.services.playerctld = {
+    description = "playerctl daemon to keep track of which MPRIS players were recently active";
+    documentation = [ "https://github.com/altdesktop/playerctl/issues/161" ];
+    wantedBy = [ "default.target" ];
+    serviceConfig.ExecStart = "${config.sane.programs.playerctl.package}/bin/playerctld";
+    # serviceConfig.Type = "dbus";
+    # serviceConfig.BusName = "org.mpris.MediaPlayer2.Player";
+    serviceConfig.Type = "simple";  # playerctl also supports a --daemon option, idk if that's better
+    serviceConfig.Restart = "on-failure";
+    serviceConfig.RestartSec = "10s";
+  };
+}

hosts/common/programs/rhythmbox.nix

@@ -0,0 +1,11 @@
+{ ... }:
+{
+  sane.programs.rhythmbox = {
+    persist.plaintext = [
+      # playlists; index
+      ".local/share/rhythmbox"
+      # album art
+      ".cache/rhythmbox"
+    ];
+  };
+}

hosts/common/programs/stepmania.nix

@@ -0,0 +1,27 @@
+# configuration:
+# - things like calibration data live in ~/.stepmania-5.1/Save/Preferences.ini
+# - GlobalOffsetSeconds = difference between audio and video delay.
+#   Hit F6 twice in-game to being auto calibration
+#   Usually the result will be negative (i.e. the higher the latency of the pad, the more negative the offset)
+# - SoundDevice: use pacmd list-sources and select alsa_output.pci-xxxxx
+# - VisualOffset: if video is coming LATE, then use a negative number
+#
+# songs/packs:
+# - find pad packs:
+#   - <https://docs.google.com/spreadsheets/d/1F1IURV1UAYiICTLhAOKIJfwUN1iG12ZOufHZuDKiP48/edit#gid=27038621>
+#   - https://www.reddit.com/r/Stepmania/comments/aku3lb/best_pad_packs_on_stepmaniaonlinenet_or_elsewhere/
+#   - https://fitupyourstyle.com/
+#     allows search by difficulty
+# - dl packs from <https://stepmaniaonline.net>
+{ ... }:
+{
+  sane.programs.stepmania = {
+    persist.plaintext = [
+      ".stepmania-5.1/Cache"  #< otherwise gotta index all the songs every launch
+      ".stepmania-5.1/Save"
+    ];
+    fs.".stepmania-5.1/Courses".symlink.target = "/mnt/servo-media/games/stepmania/Courses";
+    fs.".stepmania-5.1/Songs".symlink.target = "/mnt/servo-media/games/stepmania/Songs";
+    # TODO: setup ~/.stepmania-5.1/Themes
+  };
+}

hosts/common/programs/swaynotificationcenter.nix

@@ -0,0 +1,380 @@
+# <https://github.com/ErikReider/SwayNotificationCenter>
+# sway notification daemon
+# alternative to mako, dunst, etc
+#
+# debugging:
+# - `journalctl --user -u swaync`
+# - `G_MESSAGES_DEBUG=all swaync`
+# - reveal notification center: `swaync-client -t -sw`
+#
+# configuration:
+# - defaults: /run/current-system/etc/profiles/per-user/colin/etc/xdg/swaync/
+# - `man 5 swaync`
+# - view document tree: `GTK_DEBUG=interactive swaync`  (`systemctl stop --user swaync` first)
+# - examples:
+#   - thread: <https://github.com/ErikReider/SwayNotificationCenter/discussions/183>
+#   - buttons-grid and menubar: <https://gist.github.com/JannisPetschenka/fb00eec3efea9c7fff8c38a01ce5d507>
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.sane.programs.swaynotificationcenter;
+  fbcli-wrapper = pkgs.writeShellApplication {
+    name = "swaync-fbcli";
+    runtimeInputs = [
+      config.sane.programs.feedbackd.package
+      pkgs.procps  # for pkill
+      cfg.package
+    ];
+    text = ''
+      # if in Do Not Disturb, don't do any feedback
+      # TODO: better solution is to actually make use of feedbackd profiles.
+      #       i.e. set profile to `quiet` when in DnD mode
+      if [ "$SWAYNC_URGENCY" != "Critical" ] && [ "$(swaync-client --get-dnd)" = "true" ]; then
+        exit
+      fi
+
+      # kill children if killed, to allow that killing this parent process will end the real fbcli call
+      cleanup() {
+        echo "aborting fbcli notification (PID $child)"
+        pkill -P "$child"
+        exit 0  # exit cleanly to avoid swaync alerting a script failure
+      }
+      trap cleanup SIGINT SIGQUIT SIGTERM
+
+      # feedbackd stops playback when the caller exits
+      # and fbcli will exit immediately if it has no stdin.
+      # so spoof a stdin:
+      /bin/sh -c "true | fbcli $*" &
+      child=$!
+      wait
+    '';
+  };
+  fbcli = "${fbcli-wrapper}/bin/swaync-fbcli";
+
+  # we do this because swaync's exec naively splits the command on space to produce its argv, rather than parsing the shell.
+  # [ "pkill" "-f" "fbcli" "--event" ... ]  -> breaks pkill
+  # [ "pkill" "-f" "fbcli --event ..." ]    -> is what we want
+  fbcli-stop-wrapper = pkgs.writeShellApplication {
+    name = "fbcli-stop";
+    runtimeInputs = [
+      pkgs.procps  # for pkill
+    ];
+    text = ''
+      pkill -e -f "${fbcli} $*"
+    '';
+  };
+  fbcli-stop = "${fbcli-stop-wrapper}/bin/fbcli-stop";
+
+  kill-singleton_ = pkgs.writeShellApplication {
+    name = "kill-singleton";
+    runtimeInputs = [
+      pkgs.procps  # for pgrep
+      pkgs.gnugrep
+    ];
+    text = ''
+      pids=$(pgrep --full "$*" | tr '\n' ' ') || true
+      # only act if there's exactly one pid
+      if echo "$pids" | grep -Eq '^[0-9]+ ?$'; then
+        kill "$pids"
+      else
+        echo "kill-singleton: skipping because multiple pids match: $pids"
+      fi
+    '';
+  };
+  kill-singleton = "${kill-singleton_}/bin/kill-singleton";
+
+  systemctl-toggle = pkgs.writeShellApplication {
+    name = "systemctl-toggle";
+    runtimeInputs = [
+      pkgs.systemd
+    ];
+    text = ''
+      if systemctl is-active "$@"; then
+        systemctl stop "$@"
+      else
+        systemctl start "$@"
+      fi
+    '';
+  };
+in
+{
+  sane.programs.swaynotificationcenter = {
+    configOption = with lib; mkOption {
+      type = types.submodule {
+        options = {
+          backlight = mkOption {
+            type = types.str;
+            default = "intel_backlight";
+            description = ''
+              name of entry in /sys/class/backlight which indicates the primary backlight.
+            '';
+          };
+        };
+      };
+      default = {};
+    };
+    # prevent dbus from automatically activating swaync so i can manage it as a systemd service instead
+    package = pkgs.rmDbusServices (pkgs.swaynotificationcenter.overrideAttrs (upstream: {
+      # allow toggle buttons:
+      patches = (upstream.patches or []) ++ [
+        (pkgs.fetchpatch {
+          url = "https://github.com/ErikReider/SwayNotificationCenter/pull/304.patch";
+          name = "Add toggle button";
+          hash = "sha256-bove2EXc5FZ5nN1X1FYOn3czCgHG03ibIAupJNoctiM=";
+        })
+        (pkgs.fetchpatch {
+          url = "https://git.uninsane.org/colin/SwayNotificationCenter/commit/f5d9405e040fc42ea98dc4d37202c85728d0d4fd.patch";
+          name = "toggleButton: change active field to be a command";
+          hash = "sha256-Y8fiZbAP9yGOVU3rOkZKO8TnPPlrGpINWYGaqeeNzF0=";
+        })
+      ];
+    }));
+    suggestedPrograms = [ "feedbackd" ];
+    fs.".config/swaync/style.css".symlink.text = ''
+      /* avoid black-on-black text that the default style ships */
+      window {
+        color: rgb(255, 255, 255);
+      }
+
+      button {
+        color: rgb(128, 128, 128);
+      }
+      button.active {
+        color: rgb(255, 255, 255);
+        background-color: rgb(0, 110, 190);
+      }
+    '';
+    fs.".config/swaync/config.json".symlink.text = builtins.toJSON {
+      "$schema" = "/etc/xdg/swaync/configSchema.json";
+      positionX = "right";
+      positionY = "top";
+      layer = "overlay";
+      control-center-layer = "top";
+      layer-shell = true;
+      cssPriority = "user";  # "application"|"user". "user" in order to override the system gtk theme.
+      control-center-margin-top = 0;
+      control-center-margin-bottom = 0;
+      control-center-margin-right = 0;
+      control-center-margin-left = 0;
+      notification-2fa-action = true;
+      notification-inline-replies = false;
+      notification-icon-size = 64;
+      notification-body-image-height = 100;
+      notification-body-image-width = 200;
+      timeout = 30;
+      timeout-low = 5;
+      timeout-critical = 0;
+      fit-to-screen = true;  #< have notification center take full vertical screen space
+      control-center-width = 400;
+      control-center-height = 600;
+      notification-window-width = 400;
+      keyboard-shortcuts = true;
+      image-visibility = "when-available";
+      transition-time = 100;
+      hide-on-clear = true;  #< hide control center when clicking "clear all"
+      hide-on-action = true;
+      script-fail-notify = true;
+      scripts = {
+        # a script can match regex on these fields. only fired if all listed fields match:
+        # - app-name
+        # - desktop-entry
+        # - summary
+        # - body
+        # - urgency (Low/Normal/Critical)
+        # - category
+        # additionally, the script can be run either on receipt or action:
+        # - run-on = "receive" or "action"
+        # when script is run, these env vars are available:
+        # - SWAYNC_BODY
+        # - SWAYNC_DESKTOP_ENTRY
+        # - SWAYNC_URGENCY
+        # - SWAYNC_TIME
+        # - SWAYNC_APP_NAME
+        # - SWAYNC_CATEGORY
+        # - SWAYNC_REPLACES_ID
+        # - SWAYNC_ID
+        # - SWAYNC_SUMMARY
+        incoming-im = {
+          # trigger notification sound on behalf of these IM clients.
+          app-name = "(Chats|Dino|discord|Element|Fractal)";
+          body = "^(?!Incoming call).*$";  #< don't match Dino Incoming calls
+          exec = "${fbcli} --event proxied-message-new-instant";
+        };
+        incoming-call = {
+          app-name = "Dino";
+          body = "^Incoming call$";
+          exec = "${fbcli} --event phone-incoming-call -t 20";
+        };
+        incoming-call-acted-on = {
+          # when the notification is clicked, stop sounding the ringer
+          app-name = "Dino";
+          body = "^Incoming call$";
+          run-on = "action";
+          exec = "${fbcli-stop} --event phone-incoming-call -t 20";
+        };
+        timer-done = {
+          # sxmo_timer.sh fires off notifications like "Done with 10m" when a 10minute timer completes.
+          # it sends such a notification every second until dismissed
+          app-name = "notify-send";
+          summary = "^Done with .*$";
+          # XXX: could use alarm-clock-elapsed, but that's got a duration > 1s
+          # which isn't great for sxmo's 1s repeat.
+          # TODO: maybe better to have sxmo only notify once, and handle this like with Dino's incoming call
+          exec = "${fbcli} --event timeout-completed";
+        };
+        timer-done-acted-on = {
+          # when the notification is clicked, kill whichever sxmo process is sending it
+          app-name = "notify-send";
+          summary = "^Done with .*$";
+          run-on = "action";
+          # process tree looks like:
+          # - foot -T <...> /nix/store/.../sh /nix/store/.../.sxmo_timer.sh-wrapped timerrun <duration>
+          #   - /nix/store/.../sh /nix/store/.../.sxmo_timer.sh-wrapped timerrun duration
+          # we want to match exactly one of those, reliably.
+          # foot might not be foot, but alacritty, kitty, or any other terminal.
+          exec = "${kill-singleton} ^[^ ]* ?[^ ]*sxmo_timer.sh(-wrapped)? timerrun";
+        };
+      };
+      notification-visibility = {
+        # match incoming notifications and decide if they should be visible.
+        # map of rule-name => { criteria and effect };
+        # keys:
+        # - `state`: "ignored"|"muted"|"transient"|"enabled"
+        #   => which visibility to apply to matched notifications
+        #   => "ignored" behaves as if the notification was never sent.
+        #   => "muted" adds it to the sidebar & sets the notif indicator but doesn't display it on main display
+        # - `override-urgency`: "unset"|"low"|"normal"|"critical"
+        #   => which urgency to apply to matched notifs
+        # critera: each key is optional, value is regex; rule applies if *all* specified are matched
+        # - `app-name`: string
+        # - `desktop-entry`: string
+        # - `summary`: string
+        # - `body`: string
+        # - `urgency`: "Low"|"Normal"|"Critical"
+        # - `category`: string
+        #
+        # test rules by using `notify-send` (libnotify)
+        sxmo-extraneous-daemons = {
+          app-name = "notify-send";
+          summary = "(sxmo_hook_lisgd|Autorotate) (Stopped|Started)";
+          state = "ignored";
+        };
+        sxmo-extraneous-warnings = {
+          app-name = "notify-send";
+          # "Modem crashed! 30s recovery.": happens on sxmo_hook_postwake.sh (i.e. unlock)
+          summary = "^Modem crashed.*$";
+          state = "ignored";
+        };
+        sxmo-timer = {
+          # force timer announcements to bypass DND
+          app-name = "notify-send";
+          summary = "^Done with .*$";
+          override-urgency = "critical";
+        };
+      };
+      widgets = [
+        # what to show in the notification center (and in which order).
+        # these are configurable further via `widget-config`.
+        # besides these listed, there are general-purpose UI tools:
+        # - label (show some text)
+        # - buttons-grid (labels which trigger actions when clicked)
+        # - menubar (tree of labels/actions)
+        "title"
+        "dnd"
+        "inhibitors"
+        "buttons-grid"
+        "backlight"
+        "volume"
+        "mpris"
+        "notifications"
+      ];
+      widget-config = {
+        backlight = {
+          label = "󰃝 ";
+          device = cfg.config.backlight;
+        };
+        buttons-grid = {
+          actions =
+            # {
+            #   type = "toggle";
+            #   label = "feedbackd";
+            #   command = "${systemctl-toggle}/bin/systemctl-toggle --user feedbackd";
+            #   active = "${pkgs.systemd}/bin/systemctl is-active --user feedbackd.service";
+            # }
+          lib.optionals config.sane.programs.eg25-control.enabled [
+            {
+              type = "toggle";
+              label = "gps";
+              command = "/run/wrappers/bin/sudo ${systemctl-toggle}/bin/systemctl-toggle eg25-control-gps";
+              active = "${pkgs.systemd}/bin/systemctl is-active eg25-control-gps.service";
+            }
+          ] ++ [
+            {
+              type = "toggle";
+              label = "vpn::hn";
+              command = "/run/wrappers/bin/sudo ${systemctl-toggle}/bin/systemctl-toggle wg-quick-vpn-servo";
+              active = "${pkgs.systemd}/bin/systemctl is-active wg-quick-vpn-servo.service";
+            }
+          ] ++ lib.optionals config.sane.programs.calls.config.autostart [
+            {
+              type = "toggle";
+              label = "SIP";
+              command = "${systemctl-toggle}/bin/systemctl-toggle --user gnome-calls";
+              active = "${pkgs.systemd}/bin/systemctl is-active --user gnome-calls";
+            }
+          ] ++ lib.optionals config.sane.programs.dino.enabled [
+            {
+              type = "toggle";
+              label = "XMPP";  # XMPP calls (jingle)
+              command = "${systemctl-toggle}/bin/systemctl-toggle --user dino";
+              active = "${pkgs.systemd}/bin/systemctl is-active --user dino";
+            }
+          ] ++ lib.optionals config.sane.programs.fractal.enabled [
+            {
+              type = "toggle";
+              label = "Matrix";  # Matrix messages
+              command = "${systemctl-toggle}/bin/systemctl-toggle --user fractal";
+              active = "${pkgs.systemd}/bin/systemctl is-active --user fractal";
+            }
+          ];
+        };
+        dnd = {
+          text = "Do Not Disturb";
+        };
+        inhibitors = {
+          text = "Inhibitors";
+          button-text = "Clear All";
+          clear-all-button = true;
+        };
+        mpris = {
+          image-size = 64;
+          image-radius = 8;
+        };
+        title = {
+          text = "Notifications";
+          clear-all-button = true;
+          button-text = "Clear All";
+        };
+        volume = {
+          label = " ";
+        };
+      };
+    };
+    services.swaync = {
+      # swaync ships its own service, but i want to add `environment` variables and flags for easier debugging.
+      # seems that's not possible without defining an entire nix-native service (i.e. this).
+      description = "Swaync desktop notification daemon";
+      wantedBy = [ "default.target" ];
+      serviceConfig.ExecStart = "${cfg.package}/bin/swaync";
+      serviceConfig.Type = "simple";
+      # serviceConfig.BusName = "org.freedesktop.Notifications";
+      serviceConfig.Restart = "on-failure";
+      serviceConfig.RestartSec = "10s";
+      environment.G_MESSAGES_DEBUG = "all";
+    };
+  };
+
+  sane.programs.feedbackd.config = lib.mkIf cfg.enabled {
+    # claim control over feedbackd: we'll proxy the sounds we want on behalf of notifying programs
+    proxied = true;
+  };
+}

hosts/common/programs/tuba.nix

@@ -1,4 +1,26 @@
-{ ... }:
+{ pkgs, ... }:
 {
-  sane.programs.tuba.suggestedPrograms = [ "gnome-keyring" ];
+  sane.programs.tuba = {
+    package = pkgs.tuba.overrideAttrs (upstream: {
+      postInstall = (upstream.postInstall or "") + ''
+        # ship a `tuba` alias to the actual tuba binary, since i can never remember its name
+        ln -s $out/bin/dev.geopjr.Tuba $out/bin/tuba
+      '';
+
+      preFixup = (upstream.preFixup or "") + ''
+        # 2023/09/24: fix so i can upload media when creating a post.
+        # see: <https://github.com/GeopJr/Tuba/issues/414#issuecomment-1732695845>
+        gappsWrapperArgs+=(
+          --prefix GDK_DEBUG , no-portals
+        )
+      '';
+      # alternative to disabling portals is to remove the filters on FileDialogs.
+      # done like so (but would want to apply to the other dialogs too)
+      # postPatch = (upstream.postPatch or "") + ''
+      #   substituteInPlace src/Dialogs/ProfileEdit.vala \
+      #     --replace "default_filter = filter" ""
+      # '';
+    });
+    suggestedPrograms = [ "gnome-keyring" ];
+  };
 }

hosts/common/programs/zsh/default.nix

@@ -7,6 +7,7 @@
 #   - $ZDOTDIR/.zprofile
 # - if interactive:
 #   - /etc/zshrc
+#     -> /etc/zinputrc
 #   - $ZDOTDIR/.zshrc
 # - if login (again):
 #   - /etc/zlogin
@@ -23,7 +24,6 @@ let
 in
 {
   imports = [
-    ./p10k.nix
     ./starship.nix
   ];
   options = {
@@ -33,11 +33,6 @@ in
         default = true;
         description = "show upcoming deadlines (from my PKM) upon shell init";
       };
-      p10k = mkOption {
-        type = types.bool;
-        default = false;
-        description = "enable powerlevel10k prompt and prezto";
-      };
       starship = mkOption {
         type = types.bool;
         default = true;
@@ -54,10 +49,6 @@ in
           # but zsh will sometimes backup the history file and symlinking just the file messes things up
           ".local/share/zsh"
         ];
-        persist.plaintext = [
-          # cache gitstatus otherwise p10k fetches it from the net EVERY BOOT
-          ".cache/gitstatus"
-        ];
 
         fs.".config/zsh/.zshrc".symlink.text = ''
           # zsh/prezto complains if zshrc doesn't exist or is empty;
@@ -79,6 +70,18 @@ in
           hash -d tmp="/home/colin/tmp"
           hash -d uninsane="/home/colin/dev/uninsane"
           hash -d Videos="/home/colin/Videos"
+
+          # emulate bash keybindings
+          bindkey -e
+
+          # or manually recreate what i care about...
+          # key[Left]=''${terminfo[kcub1]}
+          # key[Right]=''${terminfo[kcuf1]}
+          # bindkey '^R'               history-incremental-search-backward
+          # bindkey '^A'               beginning-of-line
+          # bindkey '^E'               end-of-line
+          # bindkey "^''${key[Left]}"  backward-word
+          # bindkey "^''${key[Right]}" forward-word
         '';
       };
     })
@@ -93,6 +96,9 @@ in
           # common typos
           "cd.." = "cd ..";
           "cd../" = "cd ../";
+          # overcome poor defaults
+          "lsof" = "lsof -P";  #< lsof: use port *numbers*, not names
+          "tcpdump" = "tcpdump -n";  #< tcpdump: use port *numbers*, not names
         };
         setOptions = [
           # docs: `man zshoptions`

hosts/common/programs/zsh/p10k.nix

@@ -1,75 +0,0 @@
-{ config, lib, pkgs, ...}:
-
-let
-  # powerlevel10k prompt config
-  # p10k.zsh is the auto-generated config, and i overwrite those defaults here, below.
-  p10k-overrides = ''
-    # powerlevel10k launches a gitstatusd daemon to accelerate git prompt queries.
-    # this keeps open file handles for any git repo i touch for 60 minutes (by default).
-    # that prevents unmounting whatever device the git repo is on -- particularly problematic for ~/private.
-    # i can disable gitstatusd and get slower fallback git queries:
-    # - either universally
-    # - or selectively by path
-    # see: <https://github.com/romkatv/powerlevel10k/issues/246>
-    typeset -g POWERLEVEL9K_VCS_DISABLED_DIR_PATTERN='(/home/colin/private/*|/home/colin/knowledge/*)'
-    # typeset -g POWERLEVEL9K_DISABLE_GITSTATUS=true
-
-    # show user@host also when logged into the current machine.
-    # default behavior is to show it only over ssh.
-    typeset -g POWERLEVEL9K_CONTEXT_{DEFAULT,SUDO}_CONTENT_EXPANSION='$P9K_CONTENT'
-  '';
-
-  prezto-init = ''
-    source ${pkgs.zsh-autosuggestions}/share/zsh-autosuggestions/zsh-autosuggestions.zsh
-    source ${pkgs.zsh-syntax-highlighting}/share/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh
-    source ${pkgs.zsh-prezto}/share/zsh-prezto/init.zsh
-  '';
-in {
-  config = lib.mkIf config.sane.zsh.p10k {
-    sane.programs.zsh = {
-      # prezto = oh-my-zsh fork; controls prompt, auto-completion, etc.
-      # see: https://github.com/sorin-ionescu/prezto
-      # this file is auto-sourced by the prezto init.zsh script.
-      # TODO: i should work to move away from prezto:
-      # - it's FUCKING SLOW to initialize (that might also be powerlevel10k tho)
-      # - it messes with my other `setopt`s
-      fs.".config/zsh/.zpreztorc".symlink.text = ''
-        zstyle ':prezto:*:*' color 'yes'
-        zstyle ':prezto:module:utility' correct 'no'  # prezto: don't setopt CORRECT
-
-        # modules (they ship with prezto):
-        # ENVIRONMENT: configures jobs to persist after shell exit; other basic niceties
-        # TERMINAL: auto-titles terminal (e.g. based on cwd)
-        # EDITOR: configures shortcuts like Ctrl+U=undo, Ctrl+L=clear
-        # HISTORY: `history-stat` alias, setopts for good history defaults
-        # DIRECTORY: sets AUTO_CD, adds `d` alias to list directory stack, and `1`-`9` to cd that far back the stack. also overrides CLOBBER and some other options
-        # SPECTRUM: helpers for term colors and styling. used by prompts? might be unnecessary
-        # UTILITY: configures aliases like `ll`, `la`, disables globbing for things like rsync
-        #   adds aliases like `get` to fetch a file. also adds `http-serve` alias??
-        # COMPLETION: tab completion. requires `utility` module prior to loading
-        zstyle ':prezto:load' pmodule \
-          'environment' \
-          'terminal' \
-          'editor' \
-          'history' \
-          'spectrum' \
-          'utility' \
-          'completion' \
-          'prompt'
-
-        # default keymap. try also `vicmd` (vim normal mode, AKA "cmd mode") or `vi`.
-        zstyle ':prezto:module:editor' key-bindings 'emacs'
-
-        zstyle ':prezto:module:prompt' theme 'powerlevel10k'
-
-        # disable `mv` confirmation (and `rm`, too, unfortunately)
-        zstyle ':prezto:module:utility' safe-ops 'no'
-      '';
-    };
-
-    programs.zsh.interactiveShellInit = (builtins.readFile ./p10k.zsh)
-      + p10k-overrides
-      + prezto-init
-    ;
-  };
-}

hosts/common/secrets.nix

@@ -28,21 +28,26 @@
 { config, lib, sane-lib, ... }:
 
 let
-  inherit (lib.strings) hasSuffix removeSuffix;
   secretsForHost = host: let
     extraAttrsForPath = path: lib.optionalAttrs (sane-lib.path.isChild "guest" path && builtins.hasAttr "guest" config.users.users) {
       owner = "guest";
     };
+    secretsInSrc = (
+      if builtins.pathExists ../../secrets/${host} then
+        sane-lib.enumerateFilePaths ../../secrets/${host}
+      else
+        []
+    );
   in sane-lib.joinAttrsets (
     map
-      (path: lib.optionalAttrs (hasSuffix ".bin" path) (sane-lib.nameValueToAttrs {
+      (path: lib.optionalAttrs (lib.hasSuffix ".bin" path) (sane-lib.nameValueToAttrs {
-        name = removeSuffix ".bin" path;
+        name = lib.removeSuffix ".bin" path;
         value = {
           sopsFile = ../../secrets/${host}/${path};
           format = "binary";
         } // (extraAttrsForPath path);
       }))
-      (sane-lib.enumerateFilePaths ../../secrets/${host})
+      secretsInSrc
   );
 in
 {

hosts/common/users/colin.nix

@@ -16,10 +16,13 @@
     group = "users";
     extraGroups = [
       "dialout"  # required for modem access (moby)
-      "feedbackd"
+      "export"  # to read filesystem exports (servo)
+      "feedbackd"  # moby, so `fbcli` can control vibrator and LEDs
       "input"  # for /dev/input/<xyz>: sxmo
+      "media"  # servo, for /var/lib/uninsane/media
       "networkmanager"
       "nixbuild"
+      "systemd-journal"  # allows to view other user's journals (esp system users)
       "transmission"  # servo, to admin /var/lib/uninsane/media
       "video"  # mobile; for LEDs & maybe for camera?
       "wheel"
@@ -29,7 +32,7 @@
     # initial password is empty, in case anything goes wrong.
     # if `colin-passwd` (a password hash) is successfully found/decrypted, that becomes the password at boot.
     initialPassword = lib.mkDefault "";
-    passwordFile = lib.mkIf (config.sops.secrets ? "colin-passwd") config.sops.secrets.colin-passwd.path;
+    hashedPasswordFile = lib.mkIf (config.sops.secrets ? "colin-passwd") config.sops.secrets.colin-passwd.path;
 
     shell = pkgs.zsh;
 
@@ -77,16 +80,18 @@
       # ".rustup"
     ];
 
+    # fs.".cargo".symlink.target = "/tmp/colin-cargo";
+
     # convenience
     fs."knowledge".symlink.target = "private/knowledge";
     fs."nixos".symlink.target = "dev/nixos";
     fs."Books/servo".symlink.target = "/mnt/servo-media/Books";
     fs."Videos/servo".symlink.target = "/mnt/servo-media/Videos";
-    fs."Videos/servo-incomplete".symlink.target = "/mnt/servo-media/incomplete";
+    # fs."Music/servo".symlink.target = "/mnt/servo-media/Music";
-    fs."Music/servo".symlink.target = "/mnt/servo-media/Music";
     fs."Pictures/servo-macros".symlink.target = "/mnt/servo-media/Pictures/macros";
 
     # used by password managers, e.g. unix `pass`
+    # TODO: move this to the specific programs which need it
     fs.".password-store".symlink.target = "knowledge/secrets/accounts";
   };
 }

hosts/common/users/default.nix

@@ -7,6 +7,8 @@
     ./root.nix
   ];
 
+  users.groups.media = {};
+
   # Users are exactly these specified here;
   # old ones will be deleted (from /etc/passwd, etc) upon upgrade.
   users.mutableUsers = false;

hosts/common/vpn.nix

@@ -1,4 +1,4 @@
-{ config, lib, ... }:
+{ config, lib, pkgs, ... }:
 
 # to add a new OVPN VPN:
 # - generate a privkey `wg genkey`
@@ -8,14 +8,9 @@
 # - copy the Address, PublicKey, Endpoint from OVPN's config
 # N.B.: maximum interface name in Linux is 15 characters.
 let
-  def-ovpn = name: { endpoint, publicKey, address }: {
+  def-wg-vpn = name: { endpoint, publicKey, address, dns, privateKeyFile, extraOptions ? {} }: {
-    networking.wg-quick.interfaces."ovpnd-${name}" = {
+    networking.wg-quick.interfaces."${name}" = {
-      inherit address;
+      inherit address privateKeyFile dns;
-      privateKeyFile = config.sops.secrets."wg/ovpnd_${name}_privkey".path;
-      dns = [
-        "46.227.67.134"
-        "192.165.9.158"
-      ];
       peers = [
         {
           allowedIPs = [
@@ -25,11 +20,38 @@ let
           inherit endpoint publicKey;
         }
       ];
-      # to start: `systemctl start wg-quick-ovpnd-${name}`
+      # to start: `systemctl start wg-quick-${name}`
       autostart = false;
+    } // extraOptions;
+  };
+  def-ovpn = name: { endpoint, publicKey, address }: def-wg-vpn "ovpnd-${name}" {
+    inherit endpoint publicKey address;
+    privateKeyFile = config.sops.secrets."wg/ovpnd_${name}_privkey".path;
+    dns = [
+      "46.227.67.134"
+      "192.165.9.158"
+    ];
+  };
+
+  # TODO: this should live in the same file as hosts/modules/wg-home.nix...
+  def-servo = def-wg-vpn "vpn-servo" {
+    endpoint = config.sane.hosts.by-name."servo".wg-home.endpoint;
+    publicKey = config.sane.hosts.by-name."servo".wg-home.pubkey;
+    address = [ config.sane.services.wg-home.ip ];
+    dns = [
+      config.sane.hosts.by-name."servo".wg-home.ip
+    ];
+    privateKeyFile = config.networking.wireguard.interfaces.wg-home.privateKeyFile;
+    extraOptions = {
+      # wg-home and vpn-servo interfaces interfere with the result that when connected to both,
+      # other wg-home users (lappy-hn, ...) aren't visible. disabling wg-home while the full
+      # vpn-servo is active allows wg-home users to be reachable again
+      preUp = "${pkgs.iproute2}/bin/ip link set wg-home down";
+      postDown = "${pkgs.iproute2}/bin/ip link set wg-home up";
     };
   };
 in lib.mkMerge [
+  (def-servo)
   (def-ovpn "us" {
     endpoint = "vpn31.prd.losangeles.ovpn.com:9929";
     publicKey = "VW6bEWMOlOneta1bf6YFE25N/oMGh1E1UFBCfyggd0k=";

hosts/modules/default.nix

@@ -4,7 +4,6 @@
   imports = [
     ./derived-secrets
     ./gui
-    ./hardware
     ./hostnames.nix
     ./hosts.nix
     ./nixcache.nix

hosts/modules/gui/default.nix

@@ -2,10 +2,12 @@
 {
   imports = [
     ./gnome.nix
+    ./greetd.nix
     ./gtk.nix
     ./phosh.nix
     ./sway
     ./sxmo
+    ./theme
   ];
 
   sane.programs.guiApps = {
@@ -16,33 +18,38 @@
       # package sets
       "tuiApps"
     ] ++ [
+      "alacritty"  # terminal emulator
+      "calls"  # gnome calls (dialer/handler)
       # "celluloid"  # mpv frontend
       "chatty"  # matrix/xmpp/irc client
       "cozy"  # audiobook player
+      "dino"  # XMPP client
       # "emote"
       "epiphany"  # gnome's web browser
       "evince"  # works on phosh
       "firefox"
       # "foliate"  # e-book reader
-      # "fractal"  # matrix client
+      "fractal"  # matrix client
+      "g4music"  # local music player
       # "gnome.cheese"
       # "gnome-feeds"  # RSS reader (with claimed mobile support)
       # "gnome.file-roller"
-      # "gnome.gnome-maps"  # works on phosh
+      "gnome.gnome-maps"
       # "gnome-podcasts"
       # "gnome.gnome-system-monitor"
       # "gnome.gnome-terminal"  # works on phosh
-      # "gnome.gnome-weather"
+      "gnome.gnome-weather"
       "gpodder"
       "gthumb"
       "komikku"
       "koreader"
       "lemoa"  # lemmy app
       # "lollypop"
+      "mate.engrampa"  # archive manager
       "mepo"  # maps viewer
       "mpv"
-      "nheko"
+      "networkmanagerapplet"  # for nm-connection-editor: it's better than not having any gui!
-      # "networkmanagerapplet"
+      "ntfy-sh"  # notification service
       # "newsflash"
       "pavucontrol"
       # "picard"  # music tagging
@@ -64,28 +71,30 @@
       "audacity"
       "blanket"  # ambient noise generator
       "brave"  # for the integrated wallet -- as a backup
+      # "cantata"  # music player (mpd frontend)
       # "chromium"  # chromium takes hours to build. brave is chromium-based, distributed in binary form, so prefer it.
-      # "dino"  # XMPP client
       "electrum"
       "element-desktop"
-      # "font-manager"  #< depends on webkitgtk4_0 (expensive to build)
+      "font-manager"
-      # "gajim"  # XMPP client
+      # "gajim"  # XMPP client. cross build tries to import host gobject-introspection types (2023/09/01)
       "gimp"  # broken on phosh
-      "gnome.dconf-editor"
+      # "gnome.dconf-editor"
-      "gnome.file-roller"
+      # "gnome.file-roller"
       "gnome.gnome-disk-utility"
       "gnome.nautilus"  # file browser
       # "gnome.totem"  # video player, supposedly supports UPnP
       "handbrake"
       "hase"
       "inkscape"
-      "jellyfin-media-player"
+      # "jellyfin-media-player"
       "kdenlive"
       "kid3"  # audio tagging
       "krita"
       "libreoffice"  # TODO: replace with an office suite that uses saner packaging?
       "mumble"
-      "obsidian"
+      "nheko"
+      # "obsidian"
+      # "rhythmbox"  # local music player
       "slic3r"
       "steam"
       "vlc"
@@ -125,4 +134,13 @@
     "/var/lib/colord"              # preserve color calibrations (?)
     "/var/lib/systemd/backlight"   # backlight brightness
   ];
+
+  hardware.opengl = lib.mkIf config.sane.programs.guiApps.enabled ({
+    enable = true;
+    driSupport = lib.mkDefault true;
+  } // (lib.optionalAttrs pkgs.stdenv.isx86_64 {
+    # for 32 bit applications
+    # upstream nixpkgs forbids setting driSupport32Bit unless specifically x86_64 (so aarch64 isn't allowed)
+    driSupport32Bit = lib.mkDefault true;
+  }));
 }

hosts/modules/gui/gnome.nix

@@ -47,7 +47,6 @@ in
   #       favorite-apps = [
   #         "org.gnome.Nautilus.desktop"
   #         "firefox.desktop"
-  #         "kitty.desktop"
   #         # "org.gnome.Terminal.desktop"
   #       ];
   #     };

hosts/modules/gui/greetd.nix

@@ -0,0 +1,128 @@
+# greetd source/docs:
+# - <https://git.sr.ht/~kennylevinsen/greetd>
+{ config, lib, pkgs, ... }:
+
+let
+  systemd-cat = "${pkgs.systemd}/bin/systemd-cat";
+  runWithLogger = identifier: cmd: pkgs.writeShellScriptBin identifier ''
+    echo "launching ${identifier}..." | ${systemd-cat} --identifier=${identifier}
+    ${cmd} 2>&1 | ${systemd-cat} --identifier=${identifier}
+  '';
+  cfg = config.sane.gui.greetd;
+in
+{
+  options = with lib; {
+    sane.gui.greetd.enable = mkOption {
+      default = false;
+      type = types.bool;
+    };
+    sane.gui.greetd.session.command = mkOption {
+      type = types.str;
+      description = ''
+        name to use for the default session in syslog.
+      '';
+    };
+    sane.gui.greetd.session.name = mkOption {
+      default = "greetd-session";
+      type = types.str;
+      description = "name of session to use in logger";
+    };
+    sane.gui.greetd.session.user = mkOption {
+      default = null;
+      type = types.nullOr types.str;
+    };
+
+    # helpers for common things to layer on top of greetd
+    sane.gui.greetd.sway.enable = mkOption {
+      default = false;
+      type = types.bool;
+      description = ''
+        use sway as a wayland compositor in which to host a graphical greeter like gtkgreet, phog, etc.
+      '';
+    };
+    sane.gui.greetd.sway.greeterCmd = mkOption {
+      type = types.nullOr types.str;
+      default = null;
+      description = ''
+        command for sway to `exec` that provides the actual graphical greeter.
+      '';
+    };
+    sane.gui.greetd.sway.gtkgreet.enable = mkOption {
+      default = false;
+      type = types.bool;
+      description = ''
+        have sway launch gtkgreet instead of directly presenting a desktop.
+      '';
+    };
+    sane.gui.greetd.sway.gtkgreet.session.command = mkOption {
+      type = types.str;
+      description = ''
+        command for gtkgreet to execute on successful authentication.
+      '';
+    };
+    sane.gui.greetd.sway.gtkgreet.session.name = mkOption {
+      type = types.str;
+      description = ''
+        name to use for the default session in syslog and in the gtkgreet menu.
+        note that this `sessionName` will become a binary on the user's PATH.
+      '';
+    };
+    sane.gui.greetd.sway.gtkgreet.session.user = mkOption {
+      type = types.str;
+      default = "colin";
+      description = ''
+        name of user which one expects to login as.
+      '';
+    };
+  };
+
+  config = lib.mkIf cfg.enable (lib.mkMerge [
+    (lib.mkIf cfg.sway.enable {
+      sane.gui.greetd.session = if cfg.sway.greeterCmd != null then {
+        name = "sway-as-greeter";
+        command = let
+          swayAsGreeterConfig = pkgs.writeText "sway-as-greeter-config" ''
+            exec ${cfg.sway.greeterCmd}
+          '';
+        in "${pkgs.sway}/bin/sway --debug --config ${swayAsGreeterConfig}";
+      } else {
+        name = "sway";
+        user = lib.mkDefault "colin";
+        command = "${pkgs.sway}/bin/sway --debug";
+      };
+    })
+    (lib.mkIf cfg.sway.gtkgreet.enable (
+      let
+        inherit (cfg.sway.gtkgreet) session;
+        sessionProvider = runWithLogger session.name session.command;
+      in {
+        # gtkgreet shows the --command argument in the UI
+        # - so we want it to look nice (not a /nix/store/... path)
+        # - to do that we put it in the user's PATH.
+        sane.gui.greetd.sway.greeterCmd = "${pkgs.greetd.gtkgreet}/bin/gtkgreet --layer-shell --command ${session.name}";
+        users.users.${session.user}.packages = [ sessionProvider ];
+      }
+    ))
+
+    {
+      services.greetd = {
+        enable = true;
+
+        # i could have gtkgreet launch the session directly: but stdout/stderr gets dropped
+        # settings.default_session.command = cfg.session.command;
+
+        # wrapper to launch with stdout/stderr redirected to system journal.
+        settings.default_session.command = let
+          launchWithLogger = runWithLogger cfg.session.name cfg.session.command;
+        in "${launchWithLogger}/bin/${cfg.session.name}";
+      };
+
+      # persisting fontconfig & mesa_shader_cache improves start time by ~5x
+      users.users.greeter.home = "/var/lib/greeter";
+      sane.persist.sys.plaintext = [
+        { user = "greeter"; group = "greeter"; path = "/var/lib/greeter/.cache/fontconfig"; }
+        { user = "greeter"; group = "greeter"; path = "/var/lib/greeter/.cache/mesa_shader_cache"; }
+      ];
+    }
+  ]);
+}

hosts/modules/gui/gtk.nix

@@ -180,8 +180,100 @@ let
       # other Tokyonight-* omitted
     };
     icon-theme = {
+      # find icon themes via `nix-locate share/icons/Adwaita`
+      # then determine the name here by building and `ls result/share/icons`
+      # this misses quite a few icon themes that aren't Adwaita-based.
+      # for those, try `nix-locate share/icons`?
+      #
+      # note that adwaita apps expect exactly the icon set provided by adwaita-icon-theme:
+      # - most icon themes are supplementary to adwaita, rather than a full replacement.
+      # - i.e. most themes, unless adwaita is also installed, will cause some missing icons inside apps.
+      # - that's probably why so many themes here also symlink Adwaita
+      # my accounting of "adwaita coverage" seems to be overoptimistic somehow
+      # maybe some apps bundle adwaita themselves
       Adwaita = gnome.adwaita-icon-theme;
-      HighContrast = gnome.gnome-themes-extra;  # gtk-3.0
+      Arc = arc-icon-theme;  # 4.5/5, meh icon for "vertical ellipsis". 3/5 adwaita coverage
+      elementary-xfce = elementary-xfce-icon-theme;  # does not cross compile (2023/10/03)
+      elementary-xfce-dark = elementary-xfce-icon-theme;
+      elementary-xfce-darker = elementary-xfce-icon-theme;
+      elementary-xfce-darkest = elementary-xfce-icon-theme;
+      HighContrast = gnome.gnome-themes-extra;  # 5/5. 5/5 adwaita coverage (4/5 cross)
+      Humanity = humanity-icon-theme;  # 5/5. 5/5 adwaita coverage (3.5/5 cross, unique in which icons work)
+      Humanity-Dark = humanity-icon-theme;
+      kora = kora-icon-theme;
+      kora-light = kora-icon-theme;
+      kora-light-panel = kora-icon-theme;
+      kora-pgrey = kora-icon-theme;
+      Numix = numix-icon-theme;  # 4/5, meh icon for "back".
+      Numix-Light = numix-icon-theme;
+      Paper = paper-icon-theme;  # 4/5, weird icon for "info". 5/5 adwaita coverage (3.5 cross, highly unique in which icons work)
+      Paper-Mono-Dark = paper-icon-theme;
+      Pop = pop-icon-theme;  # 5/5. 2/5 adwaita coverage
+      Tela-circle = tela-circle-icon-theme;
+      Tela-circle-dark = tela-circle-icon-theme;
+      Tela-circle-light = tela-circle-icon-theme;
+
+      # themes which don't symlink Adwaita
+      BeautyLine = beauty-line-icon-theme;  # 3.5/5. 4/5 adwaita coverage
+      breeze = breeze-icons;
+      breeze-dark = breeze-icons;
+      Mint-X = cinnamon.mint-x-icons;
+      # 10-ish other Mint-X variants omitted
+      # cinnamon.mint-l-icons;
+      # cinnamon.mint-y-icons;
+      Colloid = colloid-icon-theme;  # 4.5/5, thin. 5/5 adwaita coverage (3/5 cross)
+      Colloid-dark = colloid-icon-theme;
+      Colloid-light = colloid-icon-theme;
+      bloom = deepin.deepin-icon-theme;
+      # 4 other deepin editions omitted
+      Dracula = dracula-icon-theme;  # 4.5/5, a little thin. 4.5/5 adwaita coverage
+      Faba = faba-icon-theme;  # 4/5. 4/5 adwaita coverage
+      Faba-Mono = faba-mono-icons;
+      Faba-Mono-Dark = faba-mono-icons;
+      Flat-Remix-Grey-Light = flat-remix-icon-theme;  # 5/5. 5/5 adwaita coverage. builds on breeze, elementary
+      # 20-ish other flat-remix editions omitted
+      Fluent = fluent-icon-theme;  # 5/5, though thin. 5/5 adwaita coverage (3/5 cross)
+      Fluent-dark = fluent-icon-theme;
+      gnome = gnome-icon-theme;  # 3/5, icons are colored. 3/5 adwaita coverage
+      hicolor = hicolor-icon-theme;  # 2/5 adwaita coverage; using this forces application builtin icons
+      la-capitaine-icon-theme = la-capitaine-icon-theme;  # 4.5/5. 4.5/5 adwaita coverage. builds upon elementary
+      Luna = luna-icons;
+      # 5 other Luna variants omitted
+      maia = maia-icon-theme;  # 3/5, icons are colored. 2/5 adwaita coverage
+      maia-dark = maia-icon-theme;
+      # mate.mate-icon-theme-faenza
+      mate = mate.mate-icon-theme;  # 4.5/5. 4/5 adwaita coverage
+      menta = mate.mate-icon-theme;
+      Moka = moka-icon-theme;  # 3/5, icons are colored. 3/5 adwaita coverage
+      # nixos-icons;
+      Nordzy = nordzy-icon-theme;  # 5/5, thin. 5/5 adwaita coverage (3/5 cross)
+      # 10-ish Nordzy editions omitted
+      # numix-icon-theme-circle
+      # numix-icon-theme-square
+      oomox-gruvbox-dark = gruvbox-dark-icons-gtk;
+      Oranchelo = oranchelo-icon-theme;
+      # 3 other oranchelo editions omitted
+      elementary = pantheon.elementary-icon-theme;  # 4.5/5. 4.5/5 adwaita coverage
+      Papirus = papirus-icon-theme;  # 5/5. 5/5 adwaita coverage
+      # 4 other Papirus editions omitted
+      # papirus-maia-icon-theme
+      Qogir = qogir-icon-theme;  # 5/5, thin. 5/5 adwaita coverage (2.5/5 cross)
+      # 5 other Qogir variants omitted
+      rose-pine = rose-pine-icon-theme;
+      rose-pine-dawn = rose-pine-icon-theme;  # 5/5. 5/5 adwaita coverage (2.5 cross). looks a lot like Flat Remix...
+      rose-pine-moon = rose-pine-icon-theme;
+      SuperTinyIcons = super-tiny-icons;  # 4/5. 2/5 adwaita coverage
+      Tango = tango-icon-theme;  # 2/5. 3/5 adwaita coverage -- mostly just forwards to gnome-icon-theme
+      Tela = tela-icon-theme;  # 5/5. 5/5 adwaita coverage
+      # 30-ish other Tela editions omitted
+      Vimix = vimix-icon-theme;
+      # 15-ish other Vimix editions omitted
+      WhiteSur = whitesur-icon-theme;  # 4.5/5, thin & like iOS. 5/5 adwaita coverage (3.5/5 cross)
+      WhiteSur-dark = whitesur-icon-theme;
+      Rodent = xfce.xfce4-icon-theme;
+      Zafiro-icons-Dark = zafiro-icons;
+      Zafiro-icons-Light = zafiro-icons;  # 5/5. 5/5 adwaita coverage
+
     };
   };
 in

hosts/modules/gui/snippets.txt

@@ -5,11 +5,15 @@ https://nixos.org/manual/nix/stable/language/builtins.html
 https://github.com/nixos/nixpkgs/pulls?q=
 https://nur.nix-community.org/
 https://nix-community.github.io/home-manager/options.html
+https://lists.sr.ht/~mil/sxmo-devel
 https://w.uninsane.org/viewer#search?books.name=wikipedia_en_all_maxi_2022-05&pattern=
 https://jackett.uninsane.org/UI/Dashboard#search=
+https://lemmy.uninsane.org
 https://fed.uninsane.org
+https://jelly.uninsane.org
 https://bt.uninsane.org
 https://sci-hub.se
 https://archive.is
 https://news.ycombinator.com
-http://10.78.79.1  # Router/Firewall
+http://10.78.79.1  # router/firewall
+https://jochen-hoenicke.de/queue  # johoe's mempool (bitcoin/ethereum)

hosts/modules/gui/sway/default.nix

@@ -1,48 +1,55 @@
 { config, lib, pkgs, ... }:
 
 # docs: https://nixos.wiki/wiki/Sway
-with lib;
+# sway-config docs: `man 5 sway`
 let
   cfg = config.sane.gui.sway;
-
+  defaultPackage = let
-  # bare sway launcher
+    # `defaultPackage` exists to create a `sway.desktop` file
-  sway-launcher = pkgs.writeShellScriptBin "sway-launcher" ''
+    # which will launch sway with our desired debugging facilities.
-    ${pkgs.sway}/bin/sway --debug > /var/log/sway/sway.log 2>&1
+    # i.e. redirect output to syslog.
-  '';
+    scfg = config.programs.sway;
-  # start sway and have it construct the gtkgreeter
+    systemd-cat = "${pkgs.systemd}/bin/systemd-cat";
-  sway-as-greeter = pkgs.writeShellScriptBin "sway-as-greeter" ''
+    swayWithLogger = pkgs.writeShellScriptBin "sway-session" ''
-    ${pkgs.sway}/bin/sway --debug --config ${sway-config-into-gtkgreet} > /var/log/sway/sway-as-greeter.log 2>&1
+      echo "launching sway-session (sway.desktop)..." | ${systemd-cat} --identifier=sway-session
-  '';
+      sway 2>&1 | ${systemd-cat} --identifier=sway-session
-  # (config file for the above)
+    '';
-  sway-config-into-gtkgreet = pkgs.writeText "greetd-sway-config" ''
+    origSway = (pkgs.sway.override {
-    exec "${gtkgreet-launcher}"
+      # this override is what `programs.nixos` would do internally if we left `package` unset.
-  '';
+      extraSessionCommands = scfg.extraSessionCommands;
-  # gtkgreet which launches a layered sway instance
+      extraOptions = scfg.extraOptions;
-  gtkgreet-launcher = pkgs.writeShellScript "gtkgreet-launcher" ''
+      withBaseWrapper = scfg.wrapperFeatures.base;
-    # NB: the "command" field here is run in the user's shell.
+      withGtkWrapper = scfg.wrapperFeatures.gtk;
-    # so that command must exist on the specific user's path who is logging in. it doesn't need to exist system-wide.
+      isNixOS = true;
-    ${pkgs.greetd.gtkgreet}/bin/gtkgreet --layer-shell --command sway-launcher
+      # TODO: `enableXWayland = ...`?
-  '';
+    });
-  greeter-session = {
+    desktop-file = pkgs.runCommand "sway-desktop-wrapper" {} ''
-    # greeter session config
+      mkdir -p $out/share/wayland-sessions
-    command = "${sway-as-greeter}/bin/sway-as-greeter";
+      substitute ${origSway}/share/wayland-sessions/sway.desktop $out/share/wayland-sessions/sway.desktop \
-    # alternatives:
+        --replace 'Exec=sway' 'Exec=${swayWithLogger}/bin/sway-session'
-    # - TTY: `command = "${pkgs.greetd.greetd}/bin/agreety --cmd ${pkgs.sway}/bin/sway";`
+      # XXX(2023/09/24) phog greeter (mobile greeter) will crash if DesktopNames is not set
-    # - autologin: `command = "${pkgs.sway}/bin/sway"; user = "colin";`
+      echo "DesktopNames=Sway" >> $out/share/wayland-sessions/sway.desktop
-    # - Dumb Login (doesn't work)": `command = "${pkgs.greetd.dlm}/bin/dlm";`
+    '';
-  };
+  in pkgs.symlinkJoin {
-  greeterless-session = {
+    inherit (origSway) name meta;
-    # no greeter
+    # the order of these `paths` is suchs that the desktop-file should claim share/wayland-sessions/sway.deskop,
-    command = "${sway-launcher}/bin/sway-launcher";
+    # overriding whatever the origSway provides
-    user = "colin";
+    paths = [ desktop-file origSway ];
+    passthru = {
+      inherit (origSway.passthru) providedSessions;
+    };
   };
 in
 {
-  options = {
+  options = with lib; {
     sane.gui.sway.enable = mkOption {
       default = false;
       type = types.bool;
     };
+    sane.gui.sway.package = mkOption {
+      default = defaultPackage;
+      type = types.package;
+    };
     sane.gui.sway.useGreeter = mkOption {
       description = ''
         launch sway via a greeter (like greetd's gtkgreet).
@@ -51,19 +58,124 @@ in
       default = true;
       type = types.bool;
     };
+    sane.gui.sway.config = {
+      extra_lines = mkOption {
+        type = types.lines;
+        description = ''
+          extra lines to append to the sway config
+        '';
+        default = ''
+          # XXX: sway needs exclusive control of XF86Audio{Raise,Lower}Volume, so assign this from a block that it can override.
+          # TODO: factor the bindings out into proper options and be less hacky?
+          bindsym --locked XF86AudioRaiseVolume exec $volume_up
+          bindsym --locked XF86AudioLowerVolume exec $volume_down
+        '';
+      };
+      background = mkOption {
+        type = types.path;
+      };
+      font = mkOption {
+        type = types.str;
+        default = "pango:monospace 11";
+        description = ''
+          default font (for e.g. window titles)
+        '';
+      };
+      mod = mkOption {
+        type = types.str;
+        default = "Mod4";
+        description = ''
+          Super key (for non-application shortcuts).
+          - "Mod1" for Alt
+          - "Mod4" for logo key
+        '';
+      };
+      workspace_layout = mkOption {
+        type = types.str;
+        default = "default";
+        description = ''
+          how to arrange windows within new workspaces, by default:
+          - "default" (split)
+          - "tabbed"
+          - etc
+        '';
+      };
+      xwayland = mkOption {
+        type = types.bool;
+        default = true;
+        description = ''
+          whether or not to enable xwayland (allows running X11 apps on sway).
+          some electron apps (e.g. element-desktop) require xwayland.
+        '';
+      };
+
+      # TODO: split these into their own option scope
+      brightness_down_cmd = mkOption {
+        type = types.str;
+        default = "${pkgs.brightnessctl}/bin/brightnessctl set -2%";
+        description = "command to run when use wants to decrease screen brightness";
+      };
+      brightness_up_cmd = mkOption {
+        type = types.str;
+        default = "${pkgs.brightnessctl}/bin/brightnessctl set +2%";
+        description = "command to run when use wants to increase screen brightness";
+      };
+      screenshot_cmd = mkOption {
+        type = types.str;
+        default = "${pkgs.sway-contrib.grimshot}/bin/grimshot copy area";
+        description = "command to run when user wants to take a screenshot";
+      };
+    };
+    sane.gui.sway.waybar.extra_style = mkOption {
+      type = types.lines;
+      default = ''
+        /* default font-size is about 14px, which is good for moby, but not quite for larger displays */
+        window#waybar {
+          font-size: 16px;
+        }
+      '';
+      description = ''
+        extra CSS rules to append to ~/.config/waybar/style.css
+      '';
+    };
+    sane.gui.sway.waybar.top = mkOption {
+      type = types.submodule {
+        # `attrsOf types.anything` (v.s. plain `attrs`) causes merging of the toplevel items.
+        # this allows for `waybar.top.x = lib.mkDefault a;` with `waybar.top.x = b;` to resolve to `b`.
+        # but note that `waybar.top.x.y = <multiple assignment>` won't be handled as desired.
+        freeformType = types.attrsOf types.anything;
+      };
+      default = {};
+      description = ''
+        Waybar configuration for the bar at the top of the display.
+        see: <https://github.com/Alexays/Waybar/wiki/Configuration>
+        example:
+        ```nix
+        {
+          height = 40;
+          modules-left = [ "sway/workspaces" "sway/mode" ];
+          ...
+        }
+        ```
+      '';
+    };
   };
-  config = mkMerge [
+
+  config = lib.mkMerge [
     {
       sane.programs.swayApps = {
         package = null;
         suggestedPrograms = [
           "guiApps"
+          "conky"  # for a nice background
           "splatmoji"  # used by us, but 'enabling' it gets us persistence & cfg
           "swaylock"
           "swayidle"
           "wl-clipboard"
           "blueberry"  # GUI bluetooth manager
-          "mako"  # notification daemon
+          "playerctl"  # for waybar & particularly to have playerctld running
+          # "mako"  # notification daemon
+          "swaynotificationcenter"  # notification daemon
           # # "pavucontrol"
           # "gnome.gnome-bluetooth"  # XXX(2023/05/14): broken
           # "gnome.gnome-control-center"  # XXX(2023/06/28): depends on webkitgtk4_1
@@ -73,27 +185,39 @@ in
 
         secrets.".config/sane-sway/snippets.txt" = ../../../../secrets/common/snippets.txt.bin;
       };
+
+      # default waybar
+      sane.gui.sway.waybar.top = import ./waybar-top.nix { inherit lib pkgs; };
     }
 
-    (mkIf cfg.enable {
+    (lib.mkIf cfg.enable {
       sane.programs.fontconfig.enableFor.system = true;
       sane.programs.swayApps.enableFor.user.colin = true;
-      # we need the greeter's command to be on our PATH
-      users.users.colin.packages = [ sway-launcher ];
 
       sane.gui.gtk.enable = lib.mkDefault true;
       # sane.gui.gtk.gtk-theme = lib.mkDefault "Fluent-Light-compact";
       sane.gui.gtk.gtk-theme = lib.mkDefault "Tokyonight-Light-B";
+      sane.gui.gtk.icon-theme = lib.mkDefault "HighContrast";  # 4/5 coverage on moby
+      # sane.gui.gtk.icon-theme = lib.mkDefault "WhiteSur";  # 3.5/5 coverage on moby, but it provides a bunch for Fractal/Dino
+      # sane.gui.gtk.icon-theme = lib.mkDefault "Humanity";  # 3.5/5 coverage on moby, but it provides the bookmark icon
+      # sane.gui.gtk.icon-theme = lib.mkDefault "Paper";  # 3.5/5 coverage on moby, but it provides the bookmark icon
+      # sane.gui.gtk.icon-theme = lib.mkDefault "Nordzy";  # 3/5 coverage on moby
+      # sane.gui.gtk.icon-theme = lib.mkDefault "Fluent";  # 3/5 coverage on moby
+      # sane.gui.gtk.icon-theme = lib.mkDefault "Colloid";  # 3/5 coverage on moby
+      # sane.gui.gtk.icon-theme = lib.mkDefault "Qogir";  # 2.5/5 coverage on moby
+      # sane.gui.gtk.icon-theme = lib.mkDefault "rose-pine-dawn";  # 2.5/5 coverage on moby
+      # sane.gui.gtk.icon-theme = lib.mkDefault "Flat-Remix-Grey-Light";  # requires qtbase
 
       # swap in these lines to use SDDM instead of `services.greetd`.
       # services.xserver.displayManager.sddm.enable = true;
       # services.xserver.enable = true;
-      services.greetd = {
+      sane.gui.greetd = lib.mkIf cfg.useGreeter {
-        # greetd source/docs:
-        # - <https://git.sr.ht/~kennylevinsen/greetd>
         enable = true;
-        settings = {
+        sway.enable = true;  # have greetd launch a sway compositor in which we host a greeter
-          default_session = if cfg.useGreeter then greeter-session else greeterless-session;
+        sway.gtkgreet = {
+          enable = true;
+          session.name = "sway-on-gtkgreet";
+          session.command = "${cfg.package}/bin/sway";
         };
       };
 
@@ -103,8 +227,27 @@ in
         enable = true;
         alsa.enable = true;
         alsa.support32Bit = true;  # ??
+        # emulate pulseaudio for legacy apps (e.g. sxmo-utils)
         pulse.enable = true;
       };
+      # persist per-device volume levels
+      sane.user.persist.plaintext = [ ".local/state/wireplumber" ];
+
+      # persist per-device volume settings across power cycles.
+      # pipewire sits atop the kernel ALSA API, so alsa-utils knows about device volumes.
+      # but wireplumber also tries to do some of this
+      # systemd.services.alsa-store = {
+      #   # based on <repo:nixos/nixpkgs:nixos/modules/services/audio/alsa.nix>
+      #   description = "Store Sound Card State";
+      #   wantedBy = [ "multi-user.target" ];
+      #   serviceConfig = {
+      #     Type = "oneshot";
+      #     RemainAfterExit = true;
+      #     ExecStart = "${pkgs.alsa-utils}/sbin/alsactl restore";
+      #     ExecStop = "${pkgs.alsa-utils}/sbin/alsactl store --ignore";
+      #   };
+      # };
+      # sane.persist.sys.plaintext = [ "/var/lib/alsa" ];
 
       networking.useDHCP = false;
       networking.networkmanager.enable = true;
@@ -124,20 +267,18 @@ in
       # a system service can't depend on a user service, so just launch it at graphical-session
       systemd.user.services."pipewire".wantedBy = [ "graphical-session.target" ];
 
-      sane.fs."/var/log/sway" = {
-        dir.acl.mode = "0777";
-        wantedBeforeBy = [ "greetd.service" "display-manager.service" ];
-      };
-
       programs.sway = {
         # provides xdg-desktop-portal-wlr, which exposes on dbus:
         # - org.freedesktop.impl.portal.ScreenCast
         # - org.freedesktop.impl.portal.Screenshot
         enable = true;
         extraPackages = [];  # nixos adds swaylock, swayidle, foot, dmenu by default
+        # extraOptions = [ "--debug" ];
         # "wrapGAppsHook wrapper to execute sway with required environment variables for GTK applications."
         wrapperFeatures.gtk = true;
+        package = cfg.package;
       };
+      programs.xwayland.enable = cfg.config.xwayland;
       # provide portals for:
       # - org.freedesktop.impl.portal.Access
       # - org.freedesktop.impl.portal.Account
@@ -162,17 +303,20 @@ in
         })
       ];
 
-      sane.user.fs.".config/sway/config".symlink.text =
+      sane.user.fs = {
-        import ./sway-config.nix { inherit pkgs; };
+        ".config/waybar/config".symlink.target =
+          (pkgs.formats.json {}).generate "waybar-config.json" [
+            ({ layer = "top"; } // cfg.waybar.top)
+          ];
 
-      sane.user.fs.".config/waybar/config".symlink.target =
+        ".config/waybar/style.css".symlink.text =
-        let
+          (builtins.readFile ./waybar-style.css) + cfg.waybar.extra_style;
-          waybar-config = import ./waybar-config.nix { inherit pkgs; };
-        in
-          (pkgs.formats.json {}).generate "waybar-config.json" waybar-config;
 
-      sane.user.fs.".config/waybar/style.css".symlink.text =
+        ".config/sway/config".symlink.target = import ./sway-config.nix {
-        builtins.readFile ./waybar-style.css;
+            inherit pkgs;
+            inherit (cfg) config;
+        };
+      };
     })
   ];
 }

hosts/modules/gui/sway/sway-config

@@ -0,0 +1,182 @@
+# xwayland enable|disable|force
+# - enable: lazily launch xwayland on first client connection
+# - disable: never launch xwayland
+# - force: launch xwayland immediately on boot
+# XWayland exposes a X11 server that translates the protocol to a wayland backend, allowing legacy x11-only GUI apps.
+# XWayland uses about 35MB RSS even when idle
+xwayland @xwayland@
+
+set $mod @mod@
+set $term @terminal_cmd@
+set $menu @launcher_cmd@
+set $emoji_picker @emoji_cmd@
+set $locker @lock_cmd@
+set $snippets_picker @snip_cmd@
+set $screenshot @screenshot_cmd@
+set $brightness_up @brightness_up_cmd@
+set $brightness_down @brightness_down_cmd@
+set $volume_up @vol_up_cmd@
+set $volume_down @vol_down_cmd@
+set $mute @mute_cmd@
+set $default_workspace_layout @workspace_layout@
+
+### default font (for e.g. window titles)
+font @font@
+
+### tab colors (#border #background #text [#indicator #childBorder])
+# focused & unfocused are the main interest
+# urgent is used when an inactive window wants attention (e.g. terminal rings a bell)
+# colors are synchronized with waybar and mpv
+client.focused          #1f5e54 #418379 #ffffff
+client.focused_inactive #1f5e54 #5f676a #ffffff
+client.unfocused        #1f5e54 #1f554c #b4b4b4
+client.urgent           #ff8080 #ff8080 #ffffff
+
+output '*' bg "@background@" fill
+
+### pixel boundary between windows
+# hide_edge_borders --i3 means that single-window workspaces never show window bar
+hide_edge_borders --i3 smart
+default_border pixel 1
+titlebar_border_thickness 1
+# XX YY distance from edge of window title to edge of text
+# the YY distance here determines the heigh of the overall title
+titlebar_padding 12 1
+title_align center
+
+### focus_wrapping: behavior when trying to focus past the edge of a container
+####   no  => preserve last focus. helpful mostly when `focus_follows_mouse yes`
+focus_wrapping no
+focus_follows_mouse yes
+workspace_layout $default_workspace_layout
+
+### key bindings
+floating_modifier $mod
+#### media keys
+bindsym $mod+Page_Up exec $volume_up
+bindsym $mod+Page_Down exec $volume_down
+# --locked means to keep the binding active even when display is locked/off
+bindsym --locked XF86AudioMute exec $mute
+bindsym --locked XF86AudioPlay exec @playerctl@ play-pause
+bindsym --locked XF86AudioStop exec @playerctl@ stop
+bindsym --locked XF86AudioNext exec @playerctl@ next
+bindsym --locked XF86AudioPrev exec @playerctl@ previous
+bindsym --locked XF86MonBrightnessUp exec $brightness_up
+bindsym --locked XF86MonBrightnessDown exec $brightness_down
+
+#### special functions
+bindsym $mod+Print exec $screenshot
+bindsym $mod+l exec $locker
+bindsym $mod+s exec $snippets_picker
+bindsym $mod+slash exec $emoji_picker
+bindsym $mod+d exec $menu
+bindsym $mod+Return exec $term
+bindsym $mod+Shift+q kill
+bindsym $mod+Shift+e exec swaynag -t warning -m 'You pressed the exit shortcut. Do you really want to exit sway? This will end your Wayland session.' -b 'Yes, exit sway' 'swaymsg exit'
+bindsym $mod+Shift+c reload
+
+#### layout
+bindsym $mod+b splith
+bindsym $mod+v splitv
+bindsym $mod+f fullscreen toggle
+bindsym $mod+a focus parent
+bindsym $mod+w layout tabbed
+bindsym $mod+e layout toggle split
+bindsym $mod+Shift+space floating toggle
+bindsym $mod+space focus mode_toggle
+bindsym $mod+r mode resize
+
+#### movement
+bindsym $mod+Up focus up
+bindsym $mod+Down focus down
+bindsym $mod+Left focus left
+bindsym $mod+Right focus right
+bindsym $mod+Shift+Up move up
+bindsym $mod+Shift+Down move down
+bindsym $mod+Shift+Left move left
+bindsym $mod+Shift+Right move right
+
+#### workspaces
+bindsym $mod+1 workspace number 1
+bindsym $mod+2 workspace number 2
+bindsym $mod+3 workspace number 3
+bindsym $mod+4 workspace number 4
+bindsym $mod+5 workspace number 5
+bindsym $mod+6 workspace number 6
+bindsym $mod+7 workspace number 7
+bindsym $mod+8 workspace number 8
+bindsym $mod+9 workspace number 9
+bindsym $mod+Shift+1 move container to workspace number 1
+bindsym $mod+Shift+2 move container to workspace number 2
+bindsym $mod+Shift+3 move container to workspace number 3
+bindsym $mod+Shift+4 move container to workspace number 4
+bindsym $mod+Shift+5 move container to workspace number 5
+bindsym $mod+Shift+6 move container to workspace number 6
+bindsym $mod+Shift+7 move container to workspace number 7
+bindsym $mod+Shift+8 move container to workspace number 8
+bindsym $mod+Shift+9 move container to workspace number 9
+
+#### "scratchpad" = ??
+bindsym $mod+Shift+minus move scratchpad
+bindsym $mod+minus scratchpad show
+
+mode "resize" {
+  bindsym Down resize grow height 30 px
+  bindsym Escape mode default
+  bindsym Left resize shrink width 30 px
+  bindsym Return mode default
+  bindsym Right resize grow width 30 px
+  bindsym Up resize shrink height 30 px
+  bindsym h resize shrink width 30 px
+  bindsym j resize grow height 30 px
+  bindsym k resize shrink height 30 px
+  bindsym l resize grow width 30 px
+}
+
+bar {
+  swaybar_command @waybar@
+}
+
+### application-specific settings
+#### to obtain app-id's run `swaymsg -t get_tree`
+for_window [app_id="pinentry-.*"] floating true
+for_window [app_id="foot" title=".*sxmo/modem/.*/draft.txt.*"] resize set height 25
+for_window [title="megapixels"] inhibit_idle open
+# Dino (XMPP) is ordinarily started for the purpose of daemonizing (but still visible). keep it on a predictable, out-of-the-way workspace
+# TODO: could be neat to somehow do this in a way that it never steals focus from anything...
+for_window [app_id="im.dino.Dino"] move container to workspace number 1
+for_window [app_id="org.gnome.Fractal"] move container to workspace number 1
+
+### displays
+## DESKTOP
+output "Samsung Electric Company S22C300 0x00007F35" {
+  pos 0,0
+  res 1920x1080
+}
+output "Goldstar Company Ltd LG ULTRAWIDE 0x00004E94" {
+  pos 1920,0
+  res 3440x1440
+}
+
+## LAPTOP
+# sh/en TV
+output "Pioneer Electronic Corporation VSX-524 0x00000101" {
+  pos 0,0
+  res 1920x1080
+}
+# internal display
+output "Unknown 0x0637 0x00000000" {
+  pos 1920,0
+  res 1920x1080
+}
+
+# XXX: needed for xdg-desktop-portal-* to work.
+# this is how we expose these env vars to user dbus services:
+# - DISPLAY
+# - WAYLAND_DISPLAY
+# - SWAYSOCK
+# - XDG_CURRENT_DESKTOP
+# for more, see: <repo:nixos/nixpkgs:nixos/modules/programs/wayland/sway.nix>
+include /etc/sway/config.d/*
+
+@extra_lines@

hosts/modules/gui/sway/sway-config.nix

@@ -1,182 +1,48 @@
-{ pkgs }:
+{ config, pkgs }:
 let
   fuzzel = "${pkgs.fuzzel}/bin/fuzzel";
   sed = "${pkgs.gnused}/bin/sed";
   wtype = "${pkgs.wtype}/bin/wtype";
-  kitty = "${pkgs.kitty}/bin/kitty";
+  launcher_cmd = fuzzel;
-  launcher-cmd = fuzzel;
+  terminal_cmd = "${pkgs.xdg-terminal-exec}/bin/xdg-terminal-exec";
-  terminal-cmd = kitty;
+  lock_cmd = "${pkgs.swaylock}/bin/swaylock --indicator-idle-visible --indicator-radius 100 --indicator-thickness 30";
-  lock-cmd = "${pkgs.swaylock}/bin/swaylock --indicator-idle-visible --indicator-radius 100 --indicator-thickness 30";
+  # TODO: use pipewire controls?
-  vol-up-cmd = "${pkgs.pulsemixer}/bin/pulsemixer --change-volume +5";
+  vol_up_cmd = "${pkgs.pulsemixer}/bin/pulsemixer --change-volume +5";
-  vol-down-cmd = "${pkgs.pulsemixer}/bin/pulsemixer --change-volume -5";
+  vol_down_cmd = "${pkgs.pulsemixer}/bin/pulsemixer --change-volume -5";
-  mute-cmd = "${pkgs.pulsemixer}/bin/pulsemixer --toggle-mute";
+  mute_cmd = "${pkgs.pulsemixer}/bin/pulsemixer --toggle-mute";
-  brightness-up-cmd = "${pkgs.brightnessctl}/bin/brightnessctl set +2%";
-  brightness-down-cmd = "${pkgs.brightnessctl}/bin/brightnessctl set 2%-";
-  screenshot-cmd = "${pkgs.sway-contrib.grimshot}/bin/grimshot copy area";
   # "bookmarking"/snippets inspired by Luke Smith:
   # - <https://www.youtube.com/watch?v=d_11QaTlf1I>
-  snip-file = ../snippets.txt;
+  snip_cmd = pkgs.writeShellScript "type_snippet.sh" ''
-  list-snips = "cat ${snip-file} ~/.config/sane-sway/snippets.txt";
+    snippet=$(cat ${../snippets.txt} ~/.config/sane-sway/snippets.txt | \
-  strip-comments = "${sed} 's/ #.*$//'";
+      ${fuzzel} -d -i -w 60 | \
-  snip-cmd = "${wtype} $(${list-snips} | ${fuzzel} -d -i -w 60 | ${strip-comments})";
+      ${sed} 's/ #.*$//')
+    ${wtype} "$snippet"
+  '';
   # TODO: splatmoji release > 1.2.0 should allow `-s none` to disable skin tones
-  emoji-cmd = "${pkgs.splatmoji}/bin/splatmoji -s medium-light type";
+  emoji_cmd = "${pkgs.splatmoji}/bin/splatmoji -s medium-light type";
-
+in pkgs.substituteAll {
-  # mod = "Mod1";  # Alt
+  src = ./sway-config;
-  mod = "Mod4";  # Super
+  inherit
-in ''
+    emoji_cmd
-  ### default font
+    launcher_cmd
-  font pango:monospace 8
+    lock_cmd
-
+    mute_cmd
-  ### pixel boundary between windows
+    snip_cmd
-  default_border pixel 3
+    terminal_cmd
-  default_floating_border pixel 2
+    vol_down_cmd
-  hide_edge_borders smart
+    vol_up_cmd
-
+  ;
-  ### defaults
+  inherit (config)
-  focus_wrapping no
+    background
-  focus_follows_mouse yes
+    brightness_down_cmd
-  focus_on_window_activation smart
+    brightness_up_cmd
-  mouse_warping output
+    extra_lines
-  workspace_layout default
+    screenshot_cmd
-  workspace_auto_back_and_forth no
+    font
-
+    mod
-  ### default colors (#border #background #text #indicator #childBorder)
+    workspace_layout
-  client.focused #4c7899 #285577 #ffffff #2e9ef4 #285577
+  ;
-  client.focused_inactive #333333 #5f676a #ffffff #484e50 #5f676a
+  xwayland = if config.xwayland then "enable" else "disable";
-  client.unfocused #333333 #222222 #888888 #292d2e #222222
+  playerctl = "${pkgs.playerctl}/bin/playerctl";
-  client.urgent #2f343a #900000 #ffffff #900000 #900000
+  waybar = "${pkgs.waybar}/bin/waybar";
-  client.placeholder #000000 #0c0c0c #ffffff #000000 #0c0c0c
+}
-  client.background #ffffff
-
-  ### key bindings
-  floating_modifier ${mod}
-  ## media keys
-  bindsym XF86AudioRaiseVolume exec ${vol-up-cmd}
-  bindsym XF86AudioLowerVolume exec ${vol-down-cmd}
-  bindsym ${mod}+Page_Up exec ${vol-up-cmd}
-  bindsym ${mod}+Page_Down exec ${vol-down-cmd}
-  bindsym XF86AudioMute exec ${mute-cmd}
-  bindsym XF86MonBrightnessUp exec ${brightness-up-cmd}
-  bindsym XF86MonBrightnessDown exec ${brightness-down-cmd}
-  ## special functions
-  bindsym ${mod}+Print exec ${screenshot-cmd}
-  bindsym ${mod}+l exec ${lock-cmd}
-  bindsym ${mod}+s exec ${snip-cmd}
-  bindsym ${mod}+slash exec ${emoji-cmd}
-  bindsym ${mod}+d exec ${launcher-cmd}
-  bindsym ${mod}+Return exec ${terminal-cmd}
-  bindsym ${mod}+Shift+q kill
-  bindsym ${mod}+Shift+e exec swaynag -t warning -m 'You pressed the exit shortcut. Do you really want to exit sway? This will end your Wayland session.' -b 'Yes, exit sway' 'swaymsg exit'
-  bindsym ${mod}+Shift+c reload
-  ## layout
-  bindsym ${mod}+b splith
-  bindsym ${mod}+v splitv
-  bindsym ${mod}+f fullscreen toggle
-  bindsym ${mod}+a focus parent
-  bindsym ${mod}+w layout tabbed
-  bindsym ${mod}+e layout toggle split
-  bindsym ${mod}+Shift+space floating toggle
-  bindsym ${mod}+space focus mode_toggle
-  bindsym ${mod}+r mode resize
-  ## movement
-  bindsym ${mod}+Up focus up
-  bindsym ${mod}+Down focus down
-  bindsym ${mod}+Left focus left
-  bindsym ${mod}+Right focus right
-  bindsym ${mod}+Shift+Up move up
-  bindsym ${mod}+Shift+Down move down
-  bindsym ${mod}+Shift+Left move left
-  bindsym ${mod}+Shift+Right move right
-  ## workspaces
-  bindsym ${mod}+1 workspace number 1
-  bindsym ${mod}+2 workspace number 2
-  bindsym ${mod}+3 workspace number 3
-  bindsym ${mod}+4 workspace number 4
-  bindsym ${mod}+5 workspace number 5
-  bindsym ${mod}+6 workspace number 6
-  bindsym ${mod}+7 workspace number 7
-  bindsym ${mod}+8 workspace number 8
-  bindsym ${mod}+9 workspace number 9
-  bindsym ${mod}+Shift+1 move container to workspace number 1
-  bindsym ${mod}+Shift+2 move container to workspace number 2
-  bindsym ${mod}+Shift+3 move container to workspace number 3
-  bindsym ${mod}+Shift+4 move container to workspace number 4
-  bindsym ${mod}+Shift+5 move container to workspace number 5
-  bindsym ${mod}+Shift+6 move container to workspace number 6
-  bindsym ${mod}+Shift+7 move container to workspace number 7
-  bindsym ${mod}+Shift+8 move container to workspace number 8
-  bindsym ${mod}+Shift+9 move container to workspace number 9
-  ## "scratchpad" = ??
-  bindsym ${mod}+Shift+minus move scratchpad
-  bindsym ${mod}+minus scratchpad show
-
-  ### defaults
-  mode "resize" {
-    bindsym Down resize grow height 10 px
-    bindsym Escape mode default
-    bindsym Left resize shrink width 10 px
-    bindsym Return mode default
-    bindsym Right resize grow width 10 px
-    bindsym Up resize shrink height 10 px
-    bindsym h resize shrink width 10 px
-    bindsym j resize grow height 10 px
-    bindsym k resize shrink height 10 px
-    bindsym l resize grow width 10 px
-  }
-
-  ### lightly modified bars
-  bar {
-    mode dock
-    hidden_state hide
-    position top
-    status_command ${pkgs.i3status}/bin/i3status
-    swaybar_command ${pkgs.waybar}/bin/waybar
-    workspace_buttons yes
-    strip_workspace_numbers no
-    tray_output primary
-    colors {
-      background #000000
-      statusline #ffffff
-      separator #666666
-      #  #border #background #text
-      focused_workspace #4c7899 #285577 #ffffff
-      active_workspace #333333 #5f676a #ffffff
-      inactive_workspace #333333 #222222 #888888
-      urgent_workspace #2f343a #900000 #ffffff
-      binding_mode #2f343a #900000 #ffffff
-    }
-  }
-
-  ### displays
-  ## DESKTOP
-  output "Samsung Electric Company S22C300 0x00007F35" {
-    pos 0,0
-    res 1920x1080
-  }
-  output "Goldstar Company Ltd LG ULTRAWIDE 0x00004E94" {
-    pos 1920,0
-    res 3440x1440
-  }
-
-  ## LAPTOP
-  # sh/en TV
-  output "Pioneer Electronic Corporation VSX-524 0x00000101" {
-    pos 0,0
-    res 1920x1080
-  }
-  # internal display
-  output "Unknown 0x0637 0x00000000" {
-    pos 1920,0
-    res 1920x1080
-  }
-
-  # XXX: needed for xdg-desktop-portal-* to work.
-  # this is how we expose these env vars to user dbus services:
-  # - DISPLAY
-  # - WAYLAND_DISPLAY
-  # - SWAYSOCK
-  # - XDG_CURRENT_DESKTOP
-  # for more, see: <repo:nixos/nixpkgs:nixos/modules/programs/wayland/sway.nix>
-  include /etc/sway/config.d/*
-''

hosts/modules/gui/sway/waybar-config.nix

@@ -1,67 +0,0 @@
-# docs: https://github.com/Alexays/Waybar/wiki/Configuration
-# format specifiers: https://fmt.dev/latest/syntax.html#syntax
-{ pkgs }:
-[
-  { # TOP BAR
-    layer = "top";
-    height = 40;
-    modules-left = ["sway/workspaces" "sway/mode"];
-    modules-center = ["sway/window"];
-    modules-right = ["custom/mediaplayer" "clock" "battery" "cpu" "network"];
-    "sway/window" = {
-      max-length = 50;
-    };
-    # include song artist/title. source: https://www.reddit.com/r/swaywm/comments/ni0vso/waybar_spotify_tracktitle/
-    "custom/mediaplayer" = {
-      exec = pkgs.writeShellScript "waybar-mediaplayer" ''
-        player_status=$(${pkgs.playerctl}/bin/playerctl status 2> /dev/null)
-        if [ "$player_status" = "Playing" ]; then
-          echo "$(${pkgs.playerctl}/bin/playerctl metadata artist) - $(${pkgs.playerctl}/bin/playerctl metadata title)"
-        elif [ "$player_status" = "Paused" ]; then
-          echo " $(${pkgs.playerctl}/bin/playerctl metadata artist) - $(${pkgs.playerctl}/bin/playerctl metadata title)"
-        fi
-      '';
-      interval = 2;
-      format = "{}  ";
-      # return-type = "json";
-      on-click = "${pkgs.playerctl}/bin/playerctl play-pause";
-      on-scroll-up = "${pkgs.playerctl}/bin/playerctl next";
-      on-scroll-down = "${pkgs.playerctl}/bin/playerctl previous";
-    };
-    network = {
-      # docs: https://github.com/Alexays/Waybar/blob/master/man/waybar-network.5.scd
-      interval = 2;
-      max-length = 40;
-      # custom :> format specifier explained here: https://github.com/Alexays/Waybar/pull/472
-      format-ethernet = "  {bandwidthUpBits:>}▲ {bandwidthDownBits:>}▼";
-      tooltip-format-ethernet = "{ifname} {bandwidthUpBits:>}▲ {bandwidthDownBits:>}▼";
-
-      format-wifi = "{ifname} ({signalStrength}%) {bandwidthUpBits:>}▲ {bandwidthDownBits:>}▼";
-      tooltip-format-wifi = "{essid} ({signalStrength}%) {bandwidthUpBits:>}▲ {bandwidthDownBits:>}▼";
-
-      format-disconnected = "";
-    };
-    cpu = {
-      format = " {usage:2}%";
-      tooltip = false;
-    };
-    battery = {
-      states = {
-        good = 95;
-        warning = 30;
-        critical = 10;
-      };
-      format = "{icon} {capacity}%";
-      format-icons = [
-        ""
-        ""
-        ""
-        ""
-        ""
-      ];
-    };
-    clock = {
-      format-alt = "{:%a, %d. %b  %H:%M}";
-    };
-  }
-]

hosts/modules/gui/sway/waybar-media

@@ -0,0 +1,17 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p jq -p playerctl
+status=$(playerctl status 2> /dev/null | tr 'A-Z' 'a-z')
+if [ -z "$status" ]; then
+  status="inactive"
+fi
+
+artist=$(playerctl metadata artist 2> /dev/null)
+title=$(playerctl metadata title 2> /dev/null)
+
+text=
+if [ -n "$title" ]; then
+  text="$artist - $title"
+fi
+# waybar requires output to be on a single line.
+# `alt` key determines the icon
+jq --null-input --compact-output --arg status "$status" --arg text "$text" '{ "text": $text, "alt": $status }'

hosts/modules/gui/sway/waybar-style.css

@@ -1,117 +1,5 @@
 /* style docs: https://github.com/Alexays/Waybar/wiki/Styling */
-
+/* defaults: https://github.com/Alexays/Waybar/blob/master/resources/style.css */
-* {
-  font-family: monospace;
-}
-
-/* defaults below: https://github.com/Alexays/Waybar/blob/master/resources/style.css */
-window#waybar {
-  background-color: rgba(43, 48, 59, 0.5);
-  border-bottom: 3px solid rgba(100, 114, 125, 0.5);
-  color: #ffffff;
-  transition-property: background-color;
-  transition-duration: .5s;
-}
-
-window#waybar.hidden {
-  opacity: 0.2;
-}
-
-/*
-window#waybar.empty {
-  background-color: transparent;
-}
-window#waybar.solo {
-  background-color: #FFFFFF;
-}
-*/
-
-window#waybar.termite {
-  background-color: #3F3F3F;
-}
-
-window#waybar.chromium {
-  background-color: #000000;
-  border: none;
-}
-
-#workspaces button {
-  padding: 0 5px;
-  background-color: transparent;
-  color: #ffffff;
-  /* Use box-shadow instead of border so the text isn't offset */
-  box-shadow: inset 0 -3px transparent;
-  /* Avoid rounded borders under each workspace name */
-  border: none;
-  border-radius: 0;
-}
-
-/* https://github.com/Alexays/Waybar/wiki/FAQ#the-workspace-buttons-have-a-strange-hover-effect */
-#workspaces button:hover {
-  background: rgba(0, 0, 0, 0.2);
-  box-shadow: inset 0 -3px #ffffff;
-}
-
-#workspaces button.focused {
-  background-color: #64727D;
-  box-shadow: inset 0 -3px #ffffff;
-}
-
-#workspaces button.urgent {
-  background-color: #eb4d4b;
-}
-
-#mode {
-  background-color: #64727D;
-  border-bottom: 3px solid #ffffff;
-}
-
-#clock,
-#battery,
-#cpu,
-#memory,
-#disk,
-#temperature,
-#backlight,
-#network,
-#pulseaudio,
-#custom-media,
-#tray,
-#mode,
-#idle_inhibitor,
-#mpd {
-  padding: 0 10px;
-  color: #ffffff;
-}
-
-#window,
-#workspaces {
-  margin: 0 4px;
-}
-
-/* If workspaces is the leftmost module, omit left margin */
-.modules-left > widget:first-child > #workspaces {
-  margin-left: 0;
-}
-
-/* If workspaces is the rightmost module, omit right margin */
-.modules-right > widget:last-child > #workspaces {
-  margin-right: 0;
-}
-
-#clock {
-  background-color: #64727D;
-}
-
-#battery {
-  background-color: #ffffff;
-  color: #000000;
-}
-
-#battery.charging, #battery.plugged {
-  color: #ffffff;
-  background-color: #26A65B;
-}
 
 @keyframes blink {
   to {
@@ -120,8 +8,75 @@ window#waybar.chromium {
   }
 }
 
+window#waybar {
+  background-color: #418379;
+  border-bottom: 0px solid #1f5e54;
+  color: #ffffff;
+  transition-property: background-color;
+  transition-duration: .2s;
+}
+
+.modules-right {
+  /* workspace buttons (LHS) get padding between it and the screen edge */
+  /* replicate that same padding for whatever's on the RHS (i.e. the clock) */
+  margin-right: 5px;
+}
+#workspaces button {
+  padding: 0 5px;
+  background-color: #418379;
+  color: #ffffff;
+  /* Use box-shadow instead of border so the text isn't offset */
+  box-shadow: inset 0 0px #1f5e54;
+  /* Avoid rounded borders under each workspace name */
+  border: none;
+  border-radius: 0;
+  /* keep min-width set here even if it has no apparent effect */
+  /* many gtk themes override it to something large, which doesn't seem appropriate for this context */
+  /* the default adwaita theme uses min-width: 16px */
+  min-width: 16px;
+}
+
+#workspaces button:hover {
+  /* i don't want hover effects, so reset this styling to be the same as default button */
+  /* https://github.com/Alexays/Waybar/wiki/FAQ#the-workspace-buttons-have-a-strange-hover-effect */
+  background: inherit;
+  box-shadow: inherit;
+  text-shadow: inherit;
+}
+
+#workspaces button.focused {
+  background-color: #63a89c;
+  box-shadow: inset 0 0px #2c8274;
+}
+
+#workspaces button.urgent {
+  background-color: #e64291;
+}
+
+#backlight,
+#battery,
+#clock,
+#cpu,
+#custom-media,
+#custom-swaync,
+#disk,
+#idle_inhibitor,
+#memory,
+#mode,
+#network,
+#pulseaudio,
+#temperature,
+#tray,
+#mpd {
+  /* without padding the text/icons are unreadable */
+  padding: 0 10px;
+  /* need fixed-width for cpu/net/mem meaurements which change frequently */
+  font-family: monospace;
+  border-left: 1px solid #1f5e54;
+}
+
 #battery.critical:not(.charging) {
-  background-color: #f53c3c;
+  background-color: #e64291;
   color: #ffffff;
   animation-name: blink;
   animation-duration: 0.5s;
@@ -130,69 +85,8 @@ window#waybar.chromium {
   animation-direction: alternate;
 }
 
-label:focus {
-  background-color: #000000;
-}
-
-#cpu {
-  background-color: #2ecc71;
-  color: #000000;
-}
-
-#memory {
-  background-color: #9b59b6;
-}
-
-#disk {
-  background-color: #964B00;
-}
-
-#backlight {
-  background-color: #90b1b1;
-}
-
-#network {
-  background-color: #2980b9;
-}
-
-#network.disconnected {
-  background-color: #f53c3c;
-}
-
-#pulseaudio {
-  background-color: #f1c40f;
-  color: #000000;
-}
-
-#pulseaudio.muted {
-  background-color: #90b1b1;
-  color: #2a5c45;
-}
-
-#custom-media {
-  background-color: #66cc99;
-  color: #2a5c45;
-  min-width: 100px;
-}
-
-#custom-media.custom-spotify {
-  background-color: #66cc99;
-}
-
-#custom-media.custom-vlc {
-  background-color: #ffa000;
-}
-
-#temperature {
-  background-color: #f0932b;
-}
-
-#temperature.critical {
-  background-color: #eb4d4b;
-}
-
 #tray {
-  background-color: #2980b9;
+  background-color: #418379;
 }
 
 #tray > .passive {
@@ -201,56 +95,5 @@ label:focus {
 
 #tray > .needs-attention {
   -gtk-icon-effect: highlight;
-  background-color: #eb4d4b;
+  background-color: #e64291;
 }
-
-#idle_inhibitor {
-  background-color: #2d3436;
-}
-
-#idle_inhibitor.activated {
-  background-color: #ecf0f1;
-  color: #2d3436;
-}
-
-#mpd {
-  background-color: #66cc99;
-  color: #2a5c45;
-}
-
-#mpd.disconnected {
-  background-color: #f53c3c;
-}
-
-#mpd.stopped {
-  background-color: #90b1b1;
-}
-
-#mpd.paused {
-  background-color: #51a37a;
-}
-
-#language {
-  background: #00b093;
-  color: #740864;
-  padding: 0 5px;
-  margin: 0 5px;
-  min-width: 16px;
-}
-
-#keyboard-state {
-  background: #97e1ad;
-  color: #000000;
-  padding: 0 0px;
-  margin: 0 5px;
-  min-width: 16px;
-}
-
-#keyboard-state > label {
-  padding: 0 5px;
-}
-
-#keyboard-state > label.locked {
-  background: rgba(0, 0, 0, 0.2);
-}
-

hosts/modules/gui/sway/waybar-top.nix

@@ -0,0 +1,114 @@
+# docs: <https://github.com/Alexays/Waybar/wiki/Configuration>
+# - custom modules: <https://github.com/Alexays/Waybar/wiki/Module:-Custom>
+# - format specifiers: <https://fmt.dev/latest/syntax.html#syntax>
+{ lib, pkgs }:
+let
+  waybar-media = pkgs.static-nix-shell.mkBash {
+    pname = "waybar-media";
+    src = ./.;
+    pkgs = [ "jq" "playerctl" ];
+  };
+in
+{
+  height = lib.mkDefault 40;
+  modules-left = lib.mkDefault [ "sway/workspaces" ];
+  modules-center = lib.mkDefault [ "sway/window" ];
+  modules-right = lib.mkDefault [
+    "custom/media"
+    "custom/swaync"
+    "clock"
+    "battery"
+    "memory"
+    "cpu"
+    "network"
+  ];
+
+  "sway/window" = {
+    max-length = 50;
+  };
+
+  "custom/media" = {
+    # this module shows the actively playing song
+    # - source: <https://www.reddit.com/r/swaywm/comments/ni0vso/waybar_spotify_tracktitle/>
+    # - alternative: <https://github.com/Alexays/Waybar/wiki/Module:-MPRIS>
+    # - alternative: <https://github.com/Alexays/Waybar/wiki/Module:-Custom#mpris-controller>
+    #
+    # N.B.: for this to behave well with multiple MPRIS clients,
+    # `playerctld` must be enabled. see: <https://github.com/altdesktop/playerctl/issues/161>
+    exec = "${waybar-media}/bin/waybar-media";
+    return-type = "json";
+    interval = 2;
+    format = "{icon}{}";
+    max-length = 50;
+    format-icons = {
+      playing = " ";
+      paused = " ";
+      inactive = "";
+    };
+    tooltip = false;
+    on-click = "playerctl play-pause";
+    on-scroll-up = "playerctl next";
+    on-scroll-down = "playerctl previous";
+  };
+  "custom/swaync" = {
+    # source: <https://github.com/ErikReider/SwayNotificationCenter#waybar-example>
+    exec-if = "which swaync-client";
+    exec = "swaync-client -swb";
+    return-type = "json";
+    escape = true;
+    format = "{icon}";  # or "{icon} {}" to include notif count
+    format-icons = {
+      notification = "<span foreground='red'><sup></sup></span>";
+      none = "";
+      dnd-notification = "<span foreground='red'><sup></sup></span>";
+      dnd-none = "";
+      inhibited-notification = "<span foreground='red'><sup></sup></span>";
+      inhibited-none = "";
+      dnd-inhibited-notification = "<span foreground='red'><sup></sup></span>";
+      dnd-inhibited-none = "";
+    };
+    tooltip = false;
+    on-click = "swaync-client -t -sw";
+    on-click-right = "swaync-client -d -sw";
+  };
+  network = {
+    # docs: <https://github.com/Alexays/Waybar/blob/master/man/waybar-network.5.scd>
+    interval = 2;
+    max-length = 40;
+    # custom :> format specifier explained here:
+    # - <https://github.com/Alexays/Waybar/pull/472>
+    format-ethernet = " {bandwidthUpBits:>}▲ {bandwidthDownBits:>}▼";
+    tooltip-format-ethernet = "{ifname} {bandwidthUpBits:>}▲ {bandwidthDownBits:>}▼";
+
+    format-wifi = "{ifname} ({signalStrength}%) {bandwidthUpBits:>}▲ {bandwidthDownBits:>}▼";
+    tooltip-format-wifi = "{essid} ({signalStrength}%) {bandwidthUpBits:>}▲ {bandwidthDownBits:>}▼";
+
+    format-disconnected = "";
+  };
+  cpu = {
+    format = " {usage:2}%";
+    tooltip = false;
+  };
+  memory = {
+    format = "☵ {percentage:2}%";
+    tooltip = false;
+  };
+  battery = {
+    states = {
+      good = 95;
+      warning = 30;
+      critical = 10;
+    };
+    format = "{icon} {capacity}%";
+    format-icons = [
+      ""
+      ""
+      ""
+      ""
+      ""
+    ];
+  };
+  clock = {
+    format-alt = "{:%a, %d. %b  %H:%M}";
+  };
+}

hosts/modules/gui/sxmo/default.nix

@@ -20,7 +20,8 @@
 #
 # sxmo technical overview:
 # - inputs
-#   - dwm: handles vol/power buttons; hardcoded in config.h
+#   - bonsaid: handles vol/power buttons
+#     - it receives those buttons from dwm (if x11) harcoded in config.h or sway (if wayland)
 #   - lisgd: handles gestures
 # - startup
 #   - daemon based (lisgsd, idle_locker, statusbar_periodics)
@@ -37,18 +38,18 @@
 #   - live in ~/.local/state/sxmo.log
 #   - ~/.local/state/superd.log
 #   - ~/.local/state/superd/logs/<daemon>.log
-#   - `journalctl --user --boot`  (lightm redirects the sxmo session stdout => systemd)
+#   - `journalctl --user --boot`  (lightdm redirects the sxmo session stdout => systemd)
 #
 # - default components:
 #   - DE:                  sway (if wayland), dwm (if X)
 #   - menus:               bemenu (if wayland), dmenu (if X)
 #   - gestures:            lisgd
 #   - on-screen keyboard:  wvkbd (if wayland), svkbd (if X)
-#
 { config, lib, pkgs, ... }:
 
 let
   cfg = config.sane.gui.sxmo;
+  package = cfg.package;
   knownKeyboards = {
     # map keyboard package name -> name of binary to invoke
     wvkbd = "wvkbd-mobintl";
@@ -57,6 +58,39 @@ let
   knownTerminals = {
     vte = "vte-2.91";
   };
+
+  systemd-cat = "${pkgs.systemd}/bin/systemd-cat";
+  runWithLogger = identifier: cmd: pkgs.writeShellScript identifier ''
+    echo "launching ${identifier}..." | ${systemd-cat} --identifier=${identifier}
+    ${cmd} 2>&1 | ${systemd-cat} --identifier=${identifier}
+  '';
+
+  hookPkgs = {
+    inputhandler = pkgs.static-nix-shell.mkBash {
+      pname = "sxmo_hook_inputhandler.sh";
+      src = ./hooks;
+      pkgs = [ "coreutils" ];
+    };
+    postwake = pkgs.static-nix-shell.mkBash {
+      pname = "sxmo_hook_postwake.sh";
+      src = ./hooks;
+    };
+    rotate = pkgs.static-nix-shell.mkBash {
+      pname = "sxmo_hook_rotate.sh";
+      src = ./hooks;
+      pkgs = [ "sway" ];
+    };
+    start = pkgs.static-nix-shell.mkBash {
+      pname = "sxmo_hook_start.sh";
+      src = ./hooks;
+      pkgs = [ "systemd" "xdg-user-dirs" ];
+    };
+    suspend = pkgs.static-nix-shell.mkBash {
+      pname = "sxmo_suspend.sh";
+      src = ./hooks;
+      pkgs = [ "coreutils" "util-linux" ];
+    };
+  };
 in
 {
   options = with lib; {
@@ -65,23 +99,92 @@ in
       type = types.bool;
     };
     sane.gui.sxmo.greeter = mkOption {
-      type = types.enum [ "lightdm-mobile" "sway" ];
+      type = types.enum [
-      default = "lightdm-mobile";
+        "greetd-phog"
+        "greetd-sway-gtkgreet"
+        "greetd-sway-phog"
+        "greetd-sxmo"
+        "lightdm-mobile"
+      ];
+      # default = "lightdm-mobile";
+      default = "greetd-sway-phog";
       description = ''
         which greeter to use.
-        "lightdm-mobile" => keypad style greeter. can only enter digits 0-9 as password.
+        "greetd-phog"          => phosh-based greeter. keypad (0-9) with option to open an on-screen keyboard.
-        "sway" => layered sway greeter. behaves as if you booted to swaylock.
+        "greetd-sway-phog"     => phog, but uses sway as the compositor instead of phoc.
+                              requires a patched phog, since sway doesn't provide the Wayland global "zphoc_layer_shell_effects_v1".
+        "greetd-sxmo"          => launch sxmo directly from greetd, no auth.
+                                  this means no keychain unlocked or encrypted home mounted.
+        "lightdm-mobile"       => keypad style greeter. can only enter digits 0-9 as password.
+        "greetd-sway-gtkgreet" => layered sway greeter. keyboard-only user/pass input; impractical on mobile.
       '';
     };
     sane.gui.sxmo.package = mkOption {
       type = types.package;
-      default = pkgs.sxmo-utils;
+      default = pkgs.sxmo-utils-latest.override { preferSystemd = true; };
       description = ''
         sxmo base scripts and hooks collection.
         consider overriding the outputs under /share/sxmo/default_hooks
         to insert your own user scripts.
       '';
     };
+    sane.gui.sxmo.hooks = mkOption {
+      type = types.attrsOf types.path;
+      default = {
+        # default upstream hooks
+        # additional hooks are in subdirectories like three_button_touchscreen/
+        # - sxmo_hook_inputhandler.sh
+        # - sxmo_hook_lock.sh
+        # - sxmo_hook_postwake.sh
+        # - sxmo_hook_screenoff.sh
+        # - sxmo_hook_unlock.sh
+        # by including hooks here, updating the sxmo package also updates the hooks
+        # without requiring any reboot
+        "sxmo_hook_apps.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_apps.sh";
+        "sxmo_hook_block_suspend.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_block_suspend.sh";
+        "sxmo_hook_call_audio.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_call_audio.sh";
+        "sxmo_hook_contextmenu_fallback.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_contextmenu_fallback.sh";
+        "sxmo_hook_contextmenu.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_contextmenu.sh";
+        "sxmo_hook_desktop_widget.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_desktop_widget.sh";
+        "sxmo_hook_discard.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_discard.sh";
+        "sxmo_hook_hangup.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_hangup.sh";
+        "sxmo_hook_icons.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_icons.sh";
+        "sxmo_hook_lisgdstart.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_lisgdstart.sh";
+        "sxmo_hook_logout.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_logout.sh";
+        "sxmo_hook_missed_call.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_missed_call.sh";
+        "sxmo_hook_mnc.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_mnc.sh";
+        "sxmo_hook_modem.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_modem.sh";
+        "sxmo_hook_mute_ring.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_mute_ring.sh";
+        "sxmo_hook_network_down.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_network_down.sh";
+        "sxmo_hook_network_pre_down.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_network_pre_down.sh";
+        "sxmo_hook_network_pre_up.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_network_pre_up.sh";
+        "sxmo_hook_network_up.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_network_up.sh";
+        "sxmo_hook_notification.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_notification.sh";
+        "sxmo_hook_notifications.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_notifications.sh";
+        "sxmo_hook_pickup.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_pickup.sh";
+        "sxmo_hook_restart_modem_daemons.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_restart_modem_daemons.sh";
+        "sxmo_hook_ring.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_ring.sh";
+        "sxmo_hook_rotate.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_rotate.sh";
+        "sxmo_hook_scripts.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_scripts.sh";
+        "sxmo_hook_sendsms.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_sendsms.sh";
+        "sxmo_hook_smslog.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_smslog.sh";
+        "sxmo_hook_sms.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_sms.sh";
+        "sxmo_hook_start.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_start.sh";
+        "sxmo_hook_statusbar.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_statusbar.sh";
+        "sxmo_hook_stop.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_stop.sh";
+        "sxmo_hook_tailtextlog.sh" = "${package}/share/sxmo/default_hooks/sxmo_hook_tailtextlog.sh";
+      } // {
+        # default hooks for this nix module, not upstreamable
+        "sxmo_hook_inputhandler.sh" = "${hookPkgs.inputhandler}/bin/sxmo_hook_inputhandler.sh";
+        "sxmo_hook_postwake.sh" = "${hookPkgs.postwake}/bin/sxmo_hook_postwake.sh";
+        "sxmo_hook_rotate.sh" = "${hookPkgs.rotate}/bin/sxmo_hook_rotate.sh";
+        "sxmo_hook_start.sh" = "${hookPkgs.start}/bin/sxmo_hook_start.sh";
+        "sxmo_suspend.sh" = "${hookPkgs.suspend}/bin/sxmo_suspend.sh";
+      };
+      description = ''
+        extra hooks to add with higher priority than the builtins
+      '';
+    };
     sane.gui.sxmo.terminal = mkOption {
       # type = types.nullOr (types.enum [ "foot" "st" "vte" ]);
       type = types.nullOr types.str;
@@ -116,7 +219,9 @@ in
             };
           in {
             SXMO_BAR_SHOW_BAT_PER = mkSettingsOpt "1" "show battery percentage in statusbar";
+            SXMO_DISABLE_CONFIGVERSION_CHECK = mkSettingsOpt "1" "allow omitting the configversion line from user-provided sxmo dotfiles";
             SXMO_UNLOCK_IDLE_TIME = mkSettingsOpt "300" "how many seconds of inactivity before locking the screen";  # lock -> screenoff happens 8s later, not configurable
+            # SXMO_WM = mkSettingsOpt "sway" "sway or dwm. ordinarily initialized by sxmo_{x,w}init.sh";
           };
       };
       default = {};
@@ -139,8 +244,8 @@ in
         package = null;
         suggestedPrograms = [
           "guiApps"
-          "sfeed"  # want this here so that the user's ~/.sfeed/sfeedrc gets created
+          "sfeed"      # want this here so that the user's ~/.sfeed/sfeedrc gets created
-          "superd"  # make superctl (used by sxmo) be on PATH
+          "superd"     # make superctl (used by sxmo) be on PATH
         ];
 
         persist.cryptClearOnBoot = [
@@ -152,7 +257,8 @@ in
 
     {
       # TODO: lift to option declaration
-      sane.gui.sxmo.settings.TERMCMD = lib.mkIf (cfg.terminal != null)
+      # N.B.: TERMCMD was renamed SXMO_TERMINAL on 2023/08/29
+      sane.gui.sxmo.settings.SXMO_TERMINAL = lib.mkIf (cfg.terminal != null)
         (lib.mkDefault (knownTerminals."${cfg.terminal}" or cfg.terminal));
       sane.gui.sxmo.settings.KEYBOARD = lib.mkIf (cfg.keyboard != null)
         (lib.mkDefault (knownKeyboards."${cfg.keyboard}" or cfg.keyboard));
@@ -160,59 +266,145 @@ in
 
     (lib.mkIf cfg.enable (lib.mkMerge [
       {
+        sane.gui.sway = {
+          enable = true;
+          # we manage the greeter ourselves  (TODO: merge this into sway config as well)
+          useGreeter = false;
+          waybar.top = import ./waybar-top.nix;
+          # reset extra waybar style
+          waybar.extra_style = "";
+          config = {
+            # N.B. missing from upstream sxmo config here is:
+            # - `bindsym $mod+g exec sxmo_hook_locker.sh`
+            # - `bindsym $mod+t exec sxmo_appmenu.sh power`
+            # - `bindsym $mod+i exec sxmo_wmmenu.sh windowswitcher`
+            # - `bindsym $mod+p exec sxmo_appmenu.sh`
+            # - `bindsym $mod+Shift+p exec sxmo_appmenu.sh sys`
+            # - `input * xkb_options compose:ralt`
+            # these could be added, but i don't see much benefit.
+            font = "pango:monospace 10";
+            mod = "Mod1";  # prefer Alt
+            xwayland = false;  # disable to reduce RAM usage.
+            workspace_layout = "tabbed";
+
+            brightness_down_cmd = "sxmo_brightness.sh down";
+            brightness_up_cmd = "sxmo_brightness.sh up";
+            screenshot_cmd = "sxmo_screenshot.sh";
+            extra_lines =
+              let
+                sxmo_init = pkgs.writeShellScript "sxmo_init.sh" ''
+                  # perform the same behavior as sxmo_{x,w}init.sh -- but without actually launching wayland/X11
+                  # this amounts to:
+                  # - setting env vars (e.g. getting the hooks onto PATH)
+                  # - placing default configs in ~ for sxmo-launched services (sxmo_migrate.sh)
+                  # - binding vol/power buttons (sxmo_swayinitconf.sh)
+                  # - launching sxmo_hook_start.sh
+                  #
+                  # the commands here are similar to upstream sxmo_winit.sh, but not identical and the ordering may be different
+
+                  # profile may contain SXMO_DEVICE_NAME which is used by _sxmo_load_environment so load it early
+                  source "$XDG_CONFIG_HOME/sxmo/profile"
+                  # sourcing upstream sxmo_init.sh triggers _sxmo_load_environment
+                  # which ensures SXMO_* environment variables are set
+                  source ${package}/etc/profile.d/sxmo_init.sh
+                  # _sxmo_prepare_dirs ensures ~/.cache/sxmo & other XDG dirs exist with correct perms & owner
+                  _sxmo_prepare_dirs
+                  # migrate tells sxmo to provide the following default files:
+                  # - ~/.config/sxmo/profile
+                  # - ~/.config/fontconfig/conf.d/50-sxmo.conf
+                  # - ~/.config/sxmo/sway
+                  # - ~/.config/foot/foot.ini
+                  # - ~/.config/mako/config
+                  # - ~/.config/sxmo/bonsai_tree.json
+                  # - ~/.config/wob/wob.ini
+                  # - ~/.config/sxmo/conky.conf
+                  sxmo_migrate.sh sync
+                  # various things may have happened above that require me to re-load the profile here:
+                  # - _sxmo_load_environment sources a deviceprofile.sh file, which may override my profile settings.
+                  #   very obvious if you set a non-default SXMO_SWAY_SCALE.
+                  # - sxmo_migrate.sh may have provided a default profile, if i failed to
+                  source "$XDG_CONFIG_HOME/sxmo/profile"
+                  # place my non-specialized hooks at higher precedence than the default device-hooks
+                  # alternative would be to move my hooks to ~/.config/sxmo/hooks/<device-name>.
+                  export PATH="$XDG_CONFIG_HOME/sxmo/hooks:$PATH"
+
+                  # kill anything leftover from the previous sxmo run. this way we can (try to) be reentrant
+                  echo "sxmo_init: killing stale daemons (if active)"
+                  sxmo_daemons.sh stop all
+                  pkill bemenu
+                  pkill wvkbd
+                  pkill superd
+
+                  # configure vol/power-button input mapping (upstream SXMO has this in sway config)
+                  echo "sxmo_init: configuring sway bindings/displays with:"
+                  echo "SXMO_POWER_BUTTON: $SXMO_POWER_BUTTON"
+                  echo "SXMO_VOLUME_BUTTON: $SXMO_VOLUME_BUTTON"
+                  echo "SXMO_SWAY_SCALE: $SXMO_SWAY_SCALE"
+                  sxmo_swayinitconf.sh
+
+                  echo "sxmo_init: invoking sxmo_hook_start.sh with:"
+                  echo "PATH: $PATH"
+                  sxmo_hook_start.sh
+                '';
+              in ''
+                # TODO: some of this is probably unnecessary
+                mode "menu" {
+                  # just a placeholder for "menu" mode
+                  bindsym --input-device=1:1:1c21800.lradc XF86AudioMute exec nothing
+                }
+                bindsym button2 kill
+                bindswitch lid:on exec sxmo_wm.sh dpms on
+                bindswitch lid:off exec sxmo_wm.sh dpms off
+                exec 'printf %s "$SWAYSOCK" > "$XDG_RUNTIME_DIR"/sxmo.swaysock'
+                exec_always ${sxmo_init}
+              '';
+          };
+        };
+
         sane.programs.sxmoApps.enableFor.user.colin = true;
-        sane.gui.gtk.enable = lib.mkDefault true;
 
         # sxmo internally uses doas instead of sudo
         security.doas.enable = true;
         security.doas.wheelNeedsPassword = false;
 
-        # TODO: move this further to the host-specific config?
-        networking.useDHCP = false;
-        networking.networkmanager.enable = true;
-        networking.wireless.enable = lib.mkForce false;
-
-        hardware.bluetooth.enable = true;
-        services.blueman.enable = true;
-
-        # TODO: nerdfonts is 4GB. it accepts an option to ship only some fonts: probably want to use that.
-        fonts.packages = [ pkgs.nerdfonts ];
-
         # lightdm-mobile-greeter: "The name org.a11y.Bus was not provided by any .service files"
         services.gnome.at-spi2-core.enable = true;
 
-        # sxmo has first-class support only for pulseaudio and alsa -- not pipewire.
-        # however, pipewire can emulate pulseaudio support via `services.pipewire.pulse.enable = true`
-        #   after which the stock pulseaudio binaries magically work
-        # administer with pw-cli, pw-mon, pw-top commands
-        services.pipewire = {
-          enable = true;
-          alsa.enable = true;
-          alsa.support32Bit = true;  # ??
-          pulse.enable = true;
-        };
-        systemd.user.services."pipewire".wantedBy = [ "graphical-session.target" ];
 
         # TODO: could use `displayManager.sessionPackages`?
         environment.systemPackages = [
-          cfg.package
+          package
+          pkgs.bonsai  # sway (not sxmo) needs to exec `bonsaictl` by name (sxmo_swayinitconf.sh)
         ] ++ lib.optionals (cfg.terminal != null) [ pkgs."${cfg.terminal}" ]
           ++ lib.optionals (cfg.keyboard != null) [ pkgs."${cfg.keyboard}" ];
 
         environment.sessionVariables = {
           XDG_DATA_DIRS = [
             # TODO: only need the share/sxmo directly linked
-            "${cfg.package}/share"
+            "${package}/share"
           ];
-        };
+        } // (lib.filterAttrs (k: v:
+            k == "SXMO_DISABLE_CONFIGVERSION_CHECK"  # read before `profile` is sourced
+            || k == "SXMO_TERMINAL"  # for apps launched via `swaymsg exec -- sxmo_terminal.sh ...`
+          )
+          cfg.settings
+        );
+
+        # sxmo puts in /share/sxmo:
+        # - profile.d/sxmo_init.sh
+        # - appcfg/
+        # - default_hooks/
+        # - and more
+        # environment.pathsToLink = [ "/share/sxmo" ];
 
         systemd.services."sxmo-set-permissions" = {
+          # TODO: some of these could be modified to be udev rules
           description = "configure specific /sys and /dev nodes to be writable by sxmo scripts";
           serviceConfig = {
             Type = "oneshot";
-            ExecStart = "${cfg.package}/bin/sxmo_setpermissions.sh";
+            ExecStart = "${package}/bin/sxmo_setpermissions.sh";
           };
-          wantedBy = [ "display-manager.service" ];
+          wantedBy = [ "multi-user.target" ];
         };
 
         # if superd fails to start a service within 100ms, it'll try to start again
@@ -240,45 +432,92 @@ in
           };
         };
 
-        sane.user.fs.".cache/sxmo/sxmo.noidle" = lib.mkIf cfg.noidle {
+        sane.user.fs = lib.mkMerge [
-          symlink.text = "";
+          {
-        };
+            # link the superd services into a place where systemd can find them.
-        sane.user.fs.".cache/sxmo/sxmo.nogesture" = lib.mkIf cfg.nogesture {
+            # the unit files should be compatible, except maybe for PATH handling
-          symlink.text = "";
+            # ".config/systemd/user/autocutsel-primary.service".symlink.target = "${package}/share/superd/services/autocutsel-primary.service";
-        };
+            # ".config/systemd/user/autocutsel.service".symlink.target = "${package}/share/superd/services/autocutsel.service";
-        sane.user.fs.".config/sxmo/profile".symlink.text = let
+            # ".config/systemd/user/bonsaid.service".symlink.target = "${package}/share/superd/services/bonsaid.service";
-          mkKeyValue = key: value: ''export ${key}="${value}"'';
+            # # ".config/systemd/user/dunst.service".symlink.target = "${package}/share/superd/services/dunst.service";
-          userConfig = lib.generators.toKeyValue { inherit mkKeyValue; } cfg.settings;
+            # # ".config/systemd/user/mako.service".symlink.target = "${package}/share/superd/services/mako.service";
-        in ''
+            # ".config/systemd/user/mmsd-tng.service".symlink.target = "${package}/share/superd/services/mmsd-tng.service";
-          # configversion: 4284f96d91e9550ff8f3b25823e402ad
+            # ".config/systemd/user/sxmo_autosuspend.service".symlink.target = "${package}/share/superd/services/sxmo_autosuspend.service";
-          # ^ upstream adds new options every now and then, expects user config file
+            # ".config/systemd/user/sxmo_battery_monitor.service".symlink.target = "${package}/share/superd/services/sxmo_battery_monitor.service";
-          # to include the md5sum of the template it's based on.
+            # ".config/systemd/user/sxmo_conky.service".symlink.target = "${package}/share/superd/services/sxmo_conky.service";
-          # see `setup_config_version.sh`
+            # ".config/systemd/user/sxmo_desktop_widget.service".symlink.target = "${package}/share/superd/services/sxmo_desktop_widget.service";
-          ${userConfig}
+            # ".config/systemd/user/sxmo_hook_lisgd.service".symlink.target = "${package}/share/superd/services/sxmo_hook_lisgd.service";
-        '';
+            # ".config/systemd/user/sxmo_menumode_toggler.service".symlink.target = "${package}/share/superd/services/sxmo_menumode_toggler.service";
+            # ".config/systemd/user/sxmo_modemmonitor.service".symlink.target = "${package}/share/superd/services/sxmo_modemmonitor.service";
+            # ".config/systemd/user/sxmo_networkmonitor.service".symlink.target = "${package}/share/superd/services/sxmo_networkmonitor.service";
+            # ".config/systemd/user/sxmo_notificationmonitor.service".symlink.target = "${package}/share/superd/services/sxmo_notificationmonitor.service";
+            # ".config/systemd/user/sxmo_soundmonitor.service".symlink.target = "${package}/share/superd/services/sxmo_soundmonitor.service";
+            # ".config/systemd/user/sxmo_wob.service".symlink.target = "${package}/share/superd/services/sxmo_wob.service";
+            # ".config/systemd/user/sxmo-x11-status.service".symlink.target = "${package}/share/superd/services/sxmo-x11-status.service";
+            # ".config/systemd/user/unclutter.service".symlink.target = "${package}/share/superd/services/unclutter.service";
+            # ".config/systemd/user/unclutter-xfixes.service".symlink.target = "${package}/share/superd/services/unclutter-xfixes.service";
+            # ".config/systemd/user/vvmd.service".symlink.target = "${package}/share/superd/services/vvmd.service";
 
-        sane.user.fs.".config/sxmo/sway".symlink.target = pkgs.substituteAll {
+            # service code further below tells systemd to put ~/.config/sxmo/hooks on PATH, but it puts hooks/bin on PATH instead, so symlink that
-          src = ./sway-config;
+            ".config/sxmo/hooks/bin".symlink.target = ".";
-          waybar = "${pkgs.waybar}/bin/waybar";
-        };
 
-        sane.user.fs.".config/waybar/config".symlink.target =
+            ".cache/sxmo/sxmo.noidle" = lib.mkIf cfg.noidle {
-          let
+              symlink.text = "";
-            waybar-config = import ./waybar-config.nix { inherit pkgs; };
+            };
-          in
+            ".cache/sxmo/sxmo.nogesture" = lib.mkIf cfg.nogesture {
-            (pkgs.formats.json {}).generate "waybar-config.json" waybar-config;
+              symlink.text = "";
+            };
+            ".config/sxmo/profile".symlink.text = let
+              mkKeyValue = key: value: ''export ${key}="${value}"'';
+            in
+              lib.generators.toKeyValue { inherit mkKeyValue; } cfg.settings;
+          }
+          (lib.mapAttrs' (name: value: {
+            # sxmo's `_sxmo_load_environments` adds to PATH:
+            # - ~/.config/sxmo/hooks/$SXMO_DEVICE_NAME
+            # - ~/.config/sxmo/hooks
+            name = ".config/sxmo/hooks/${name}";
+            value.symlink.target = value;
+          }) cfg.hooks)
+        ];
 
-        sane.user.fs.".config/waybar/style.css".symlink.text =
+        sane.user.services = let
-          builtins.readFile ./waybar-style.css;
+          sxmoPath = [ "/home/colin/.config/sxmo/hooks" package ] ++ package.runtimeDeps ++ [
-
+            "/run/current-system/sw"  # for flock wrapper
-        sane.user.fs.".config/sxmo/conky.conf".symlink.target = let
+            "/run/wrappers"  # for doas
-          battery_estimate = pkgs.static-nix-shell.mkBash {
+          ];
-            pname = "battery_estimate";
+          sxmoService = name: {
-            src = ./.;
+            description = "sxmo ${name}";
+            path = sxmoPath;
+            serviceConfig.ExecStart = "${pkgs.coreutils}/bin/env sxmo_${name}.sh";
+            serviceConfig.Type = "simple";
+            serviceConfig.Restart = "always";
+            serviceConfig.RestartSec = "20s";
+          };
+        in {
+          sxmo_autosuspend = sxmoService "autosuspend";
+          sxmo_battery_monitor = sxmoService "battery_monitor";
+          sxmo_desktop_widget = sxmoService "hook_desktop_widget";
+          sxmo_hook_lisgd = sxmoService "hook_lisgdstart";
+          sxmo_menumode_toggler = sxmoService "menumode_toggler";
+          sxmo_modemmonitor = sxmoService "modemmonitor";
+          sxmo_networkmonitor = sxmoService "networkmonitor";
+          sxmo_notificationmonitor = sxmoService "notificationmonitor";
+          sxmo_soundmonitor = sxmoService "soundmonitor";
+          sxmo_wob = sxmoService "wob";
+          sxmo-x11-status = sxmoService "status_xsetroot";
+
+          bonsaid = {
+            description = "programmable input dispatcher";
+            path = sxmoPath;
+            # systemd expands %E to $XDG_CONFIG_HOME
+            serviceConfig.ExecStart = "${pkgs.bonsai}/bin/bonsaid -t %E/sxmo/bonsai_tree.json";
+            serviceConfig.ExecStartPre = "${pkgs.coreutils}/bin/rm -f %t/bonsai";  # systemd expands %t to $XDG_RUNTIME_DIR
+            serviceConfig.Type = "simple";
+            serviceConfig.Restart = "always";
+            serviceConfig.RestartSec = "5s";
+            environment.SXMO_STATE = "/run/user/1000/sxmo.state";  #< TODO: this is $XDG_RUNTIME_DIR/sxmo.state
           };
-        in pkgs.substituteAll {
-          src = ./conky-config;
-          bat = "${battery_estimate}/bin/battery_estimate";
         };
       }
 
@@ -299,7 +538,7 @@ in
           '';
 
           displayManager.sessionPackages = with pkgs; [
-            cfg.package  # this gets share/wayland-sessions/swmo.desktop linked
+            package  # this gets share/wayland-sessions/swmo.desktop linked
           ];
 
           # taken from gui/phosh:
@@ -313,32 +552,43 @@ in
         };
       })
 
-      (lib.mkIf (cfg.greeter == "sway") {
+      (lib.mkIf (cfg.greeter == "greetd-sway-gtkgreet") {
-        services.greetd = {
+        sane.gui.greetd = {
           enable = true;
-          # borrowed from gui/sway
+          sway.enable = true;
-          settings.default_session.command =
+          sway.gtkgreet.enable = true;
-          let
+          sway.gtkgreet.session.name = "sxmo-on-gtkgreet";
-            # start sway and have it construct the gtkgreeter
+          sway.gtkgreet.session.command = "${pkgs.sway}/bin/sway --debug";
-            sway-as-greeter = pkgs.writeShellScriptBin "sway-as-greeter" ''
-              ${pkgs.sway}/bin/sway --debug --config ${sway-config-into-gtkgreet} > /var/log/sway/sway-as-greeter.log 2>&1
-            '';
-            # (config file for the above)
-            sway-config-into-gtkgreet = pkgs.writeText "greetd-sway-config" ''
-              exec "${gtkgreet-launcher}"
-            '';
-            # gtkgreet which launches a layered sway instance
-            gtkgreet-launcher = pkgs.writeShellScript "gtkgreet-launcher" ''
-              # NB: the "command" field here is run in the user's shell.
-              # so that command must exist on the specific user's path who is logging in. it doesn't need to exist system-wide.
-              ${pkgs.greetd.gtkgreet}/bin/gtkgreet --layer-shell --command sxmo_winit.sh
-            '';
-          in "${sway-as-greeter}/bin/sway-as-greeter";
         };
+      })
 
-        sane.fs."/var/log/sway" = {
+      (lib.mkIf (cfg.greeter == "greetd-sway-phog") {
-          dir.acl.mode = "0777";
+        sane.gui.greetd = {
-          wantedBeforeBy = [ "greetd.service" "display-manager.service" ];
+          enable = true;
+          sway.enable = true;
+          sway.greeterCmd = "${pkgs.phog}/libexec/phog";
+        };
+        # phog locates sxmo_winit.sh (or sway.desktop) via <env>/share/wayland-sessions
+        environment.pathsToLink = [ "/share/wayland-sessions" ];
+      })
+
+      (lib.mkIf (cfg.greeter == "greetd-phog") {
+        sane.gui.greetd = {
+          enable = true;
+          session.name = "phog";
+          session.command = "${pkgs.phog}/bin/phog";
+        };
+        # phog locates sxmo_winit.sh (or sway.desktop) via <env>/share/wayland-sessions
+        environment.pathsToLink = [ "/share/wayland-sessions" ];
+      })
+
+      (lib.mkIf (cfg.greeter == "greetd-sxmo") {
+        sane.gui.greetd = {
+          enable = true;
+          session.name = "sxmo";
+          # session.command = "${package}/bin/sxmo_winit.sh";
+          session.command = "${pkgs.sway}/bin/sway --debug";
+          session.user = "colin";
         };
       })
 
@@ -347,21 +597,11 @@ in
       #   name = "sxmo";
       #   desktopNames = [ "sxmo" ];
       #   start = ''
-      #     ${cfg.package}/bin/sxmo_xinit.sh &
+      #     ${package}/bin/sxmo_xinit.sh &
       #     waitPID=$!
       #   '';
       # }];
       # services.xserver.enable = true;
-
-      # services.greetd = {
-      #   enable = true;
-      #   settings = {
-      #     default_session = {
-      #       command = "${cfg.package}/bin/sxmo_winit.sh";
-      #       user = "colin";
-      #     };
-      #   };
-      # };
     ]))
   ];
 }

hosts/modules/gui/sxmo/hooks/sxmo_hook_inputhandler.sh

@@ -0,0 +1,142 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p coreutils
+
+# input map considerations
+# - using compound actions causes delays.
+#   e.g. if volup->volup is a distinct action from volup, then single-volup action is forced to wait the maximum button delay.
+# - actions which are to be responsive should therefore have a dedicated key.
+# - a dedicated "kill" combo is important for unresponsive fullscreen apps, because appmenu doesn't show in those
+#   - although better may be to force appmenu to show over FS apps
+# - bonsai mappings are static, so buttons can't benefit from non-compounding unless they're mapped accordingly for all lock states
+#   - this limitation could be removed, but with work
+#
+# proposed future design:
+# - when unlocked:
+#   - volup1   -> app menu
+#   - voldown1 -> toggle keyboard
+#   - pow1 -> volup1 -> volume up
+#   - pow1 -> voldown1 -> volume down
+#   - pow2 -> screen off
+#   - pow3 -> kill app
+# - when locked:
+#   - volup1 -> volume up
+#   - voldown1 -> volume down
+#   - pow1 -> screen on
+#   - pow2 -> toggle player
+# benefits
+# - volup and voldown are able to be far more responsive
+#   - which means faster vkbd, menus, volume adjustment (when locked)
+# limitations
+# - terminal is unmapped. that could be mapped to pow1?
+# - wm menu is unmapped. but i never used that much anyway
+
+# increments to use for volume adjustment
+VOL_INCR_1=5
+VOL_INCR_2=10
+VOL_INCR_3=15
+
+# replicating the naming from upstream sxmo_hook_inputhandler.sh...
+ACTION="$1"
+STATE=$(cat "$SXMO_STATE")
+
+
+handle_with() {
+  echo "sxmo_hook_inputhandler.sh: STATE=$STATE ACTION=$ACTION: handle_with: $@"
+  "$@"
+  exit 0
+}
+
+# handle_with_state_toggle() {
+#   # - unlock,lock => screenoff
+#   # - screenoff => unlock
+#   #
+#   # probably not handling proximity* correctly here
+#   case "$STATE" in
+#     *lock)
+#       respond_with sxmo_state_switch.sh set screenoff
+#     *)
+#       respond_with sxmo_state_switch.sh set unlock
+#   esac
+# }
+
+# state is one of:
+# - "unlock" => normal operation; display on and touchscreen on
+# - "screenoff" => display off and touchscreen off
+# - "lock" => display on but touchscreen disabled
+# - "proximity{lock,unlock}" => intended for when in a phone call
+
+if [ "$STATE" = "unlock" ]; then
+  case "$ACTION" in
+    # powerbutton_one: intentional default to no-op
+    # powerbutton_two: intentional default to screenoff
+    "powerbutton_three")
+      # power thrice: kill active window
+      handle_with sxmo_killwindow.sh
+      ;;
+
+    "volup_one")
+      # volume up once: app-specific menu w/ fallback to SXMO system menu
+      handle_with sxmo_appmenu.sh
+      ;;
+    # volup_two: intentionally defaulted for volume control
+    "volup_three")
+      # volume up thrice: DE menu
+      handle_with sxmo_wmmenu.sh
+      ;;
+
+    "voldown_one")
+      # volume down once: toggle keyboard
+      handle_with sxmo_keyboard.sh toggle
+      ;;
+    # voldown_two: intentionally defaulted for volume control
+    "voldown_three")
+      # volume down thrice: launch terminal
+      handle_with sxmo_terminal.sh
+      ;;
+  esac
+fi
+
+if [ "$STATE" = "screenoff" ]; then
+  case "$ACTION" in
+    "powerbutton_two")
+      # power twice => toggle media player
+      handle_with playerctl play-pause
+      ;;
+  esac
+fi
+
+# default actions
+case "$ACTION" in
+  "powerbutton_one")
+    # power once => unlock
+    handle_with sxmo_state_switch.sh set unlock
+    ;;
+  "powerbutton_two")
+    # power twice => screenoff
+    handle_with sxmo_state_switch.sh set screenoff
+    ;;
+  # powerbutton_three: intentional no-op because overloading the kill-window handler is risky
+
+  "volup_one")
+    handle_with sxmo_audio.sh vol up "$VOL_INCR_1"
+    ;;
+  "volup_two")
+    handle_with sxmo_audio.sh vol up "$VOL_INCR_2"
+    ;;
+  "volup_three")
+    handle_with sxmo_audio.sh vol up "$VOL_INCR_3"
+    ;;
+
+  "voldown_one")
+    handle_with sxmo_audio.sh vol down "$VOL_INCR_1"
+    ;;
+  "voldown_two")
+    handle_with sxmo_audio.sh vol down "$VOL_INCR_2"
+    ;;
+  "voldown_three")
+    handle_with sxmo_audio.sh vol down "$VOL_INCR_3"
+    ;;
+esac
+
+
+handle_with echo "no-op"

hosts/modules/gui/sxmo/hooks/sxmo_hook_postwake.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash
+
+# the default sxmo_postwake handler checks if the modem is offline
+# and if so installs a wakelock to block suspend for 30s.
+# that's a questionable place to install that logic, and i want to keep stuff
+# out of the wake-from-sleep critical path, so i'm overriding this hook to disable that.

hosts/modules/gui/sxmo/hooks/sxmo_hook_rotate.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p sway
+
+# called whenever sxmo_rotate.sh is invoked.
+# i.e. whenever the screen is rotated manually, or automatically if autorotate is enabled.
+# $1 = the new orientation
+# possible values are "normal", "invert", "left" and "right"
+
+# exit fullscreen, if any app is in FS.
+# this benefits UX because:
+# - most of my FS use is in landscape mode
+# - when i toggle apps or desktops i always do so in portrait mode
+# - therefore when i rotate landscape -> portrait mode, i almost never want fullscreen anymore.
+if [ "$1" = "normal" ] || [ "$1" = "invert" ]; then
+  swaymsg fullscreen disable
+fi

hosts/modules/gui/sxmo/hooks/sxmo_hook_start.sh

@@ -0,0 +1,88 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p systemd -p xdg-user-dirs
+# this is based on upstream sxmo-utils sxmo_hook_start.sh
+# but modified for nixos integration and specialize a bit to my needs
+. sxmo_common.sh
+
+# Create xdg user directories, such as ~/Pictures
+xdg-user-dirs-update
+
+sxmo_daemons.sh start daemon_manager
+
+# Periodically update some status bar components
+sxmo_hook_statusbar.sh all
+sxmo_daemons.sh start statusbar_periodics sxmo_run_aligned.sh 60 \
+	sxmo_hook_statusbar.sh periodics
+
+# TODO: start these externally, via `wantedBy` in nix
+# don't: mako is managed externally
+#   superctl start mako
+systemctl --user start sxmo_wob
+systemctl --user start sxmo_menumode_toggler
+systemctl --user start bonsaid
+# don't: sway background is managed externally
+#   swaymsg output '*' bg "$SXMO_BG_IMG" fill
+
+# To setup initial lock state
+sxmo_state_switch.sh set unlock
+
+# Turn on auto-suspend
+if [ -w "/sys/power/wakeup_count" ] && [ -f "/sys/power/wake_lock" ]; then
+	systemctl --user start sxmo_autosuspend
+fi
+
+# Turn on lisgd
+if [ ! -e "$XDG_CACHE_HOME"/sxmo/sxmo.nogesture ]; then
+	systemctl --user start sxmo_hook_lisgd
+fi
+
+if [ "$(command -v ModemManager)" ]; then
+	# Turn on the dbus-monitors for modem-related tasks
+	systemctl --user start sxmo_modemmonitor
+
+	# place a wakelock for 120s to allow the modem to fully warm up (eg25 +
+	# elogind/systemd would do this for us, but we don't use those.)
+	sxmo_wakelock.sh lock sxmo_modem_warming_up 120s
+fi
+
+# don't: conky is managed externally
+#   superctl start sxmo_conky
+
+# Monitor the battery
+systemctl --user start sxmo_battery_monitor
+
+# It watch network changes and update the status bar icon by example
+systemctl --user start sxmo_networkmonitor
+
+# The daemon that display notifications popup messages
+systemctl --user start sxmo_notificationmonitor
+
+# monitor for headphone for statusbar
+systemctl --user start sxmo_soundmonitor
+
+# rotate UI based on physical display angle by default
+if [ -n "$SXMO_AUTOROTATE" ]; then
+	# TODO: this could use ~/.cache/sxmo/sxmo.autorotate like for lisgd above
+	sxmo_daemons.sh start autorotate sxmo_autorotate.sh
+fi
+
+# Play a funky startup tune if you want (disabled by default)
+#mpv --quiet --no-video ~/welcome.ogg &
+
+# mmsd and vvmd
+if [ -f "${SXMO_MMS_BASE_DIR:-"$HOME"/.mms/modemmanager}/mms" ]; then
+	systemctl --user start mmsd-tng
+fi
+
+if [ -f "${SXMO_VVM_BASE_DIR:-"$HOME"/.vvm/modemmanager}/vvm" ]; then
+	systemctl --user start vvmd
+fi
+
+# add some warnings if things are not setup correctly
+if ! command -v "sxmo_deviceprofile_$SXMO_DEVICE_NAME.sh";  then
+	sxmo_notify_user.sh --urgency=critical \
+		"No deviceprofile found $SXMO_DEVICE_NAME. See: https://sxmo.org/deviceprofile"
+fi
+
+sxmo_migrate.sh state || sxmo_notify_user.sh --urgency=critical \
+	"Config needs migration" "$? file(s) in your sxmo configuration are out of date and disabled - using defaults until you migrate (run sxmo_migrate.sh)"

hosts/modules/gui/sxmo/hooks/sxmo_suspend.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p coreutils -p util-linux
+
+# yeah, this isn't technically a hook, but the hook infrastructure isn't actually
+# restricted to stuff that starts with sxmo_hook_ ...
+#
+# this script is only called by sxmo_autosuspend, which is small, so if i wanted to
+# be more proper i could instead re-implement autosuspend + integrations.
+
+. sxmo_common.sh
+
+suspend_time=300
+
+sxmo_log "calling suspend for duration: $suspend_time"
+
+rtcwake -m mem -s "$suspend_time" || exit 1
+
+sxmo_log "exited suspend: $(cat /proc/net/rtl8723cs/wlan0/wowlan_last_wake_reason)"
+
+sxmo_hook_postwake.sh
+

hosts/modules/gui/sxmo/sway-config

@@ -1,236 +0,0 @@
-# Default config for sway
-# configversion: 5eff902ecca36b4e75567322335cc81c
-#
-# Copy this to ~/.config/sway/config and edit it to your liking.
-#
-# Read `man 5 sway` for a complete reference.
-
-### Variables
-#
-# Mod4 = Logo key
-# Mod1 = Alt.
-set $mod Mod1
-# Home row direction keys, like vim
-set $left h
-set $down j
-set $up k
-set $right l
-# Your preferred terminal emulator
-set $term sxmo_terminal.sh
-# Your preferred application launcher
-# Note: pass the final command to swaymsg so that the resulting window can be opened
-# on the original workspace that the command was run on.
-set $menu bemenu-run
-
-# xwayland enable|disable|force
-# - enable: lazily launch xwayland on first client connection
-# - disable: never launch xwayland
-# - force: launch xwayland immediately on boot
-# XWayland uses about 35MB RSS even when idle
-xwayland disable
-
-font "Sxmo 10"
-
-exec_always sxmo_swayinitconf.sh
-
-exec_always dbus-update-activation-environment WAYLAND_DISPLAY XDG_CURRENT_DESKTOP
-
-mode "menu" {
-    bindsym --input-device=1:1:1c21800.lradc XF86AudioMute exec nothing # just a placeholder for "menu" mode
-}
-
-hide_edge_borders smart
-default_border pixel 1
-titlebar_border_thickness 1
-# XX YY distance from edge of window title to edge of text
-# the YY distance here determines the heigh of the overall title
-titlebar_padding 12 1
-title_align center
-
-### tab colors (#border #background #text [#indicator #childBorder])
-# fucused & unfocused are the main interest
-client.focused          #1f5e54 #418379 #ffffff
-client.focused_inactive #1f5e54 #5f676a #ffffff
-client.unfocused        #1f5e54 #1f554c #b4b4b4
-client.urgent           #e64291 #e64291 #ffffff
-
-### Key bindings
-#
-# Basics:
-#
-    # Start a terminal
-    bindsym $mod+Return exec $term
-
-    # Launch appmenu
-    bindsym $mod+p exec sxmo_appmenu.sh
-
-    # Launch scripts menu
-    bindsym $mod+i exec sxmo_appmenu.sh scripts
-
-    # Kill focused window
-    bindsym $mod+Shift+q kill
-
-    # Start your launcher
-    bindsym $mod+d exec $menu
-
-    # Drag floating windows by holding down $mod and left mouse button.
-    # Resize them with right mouse button + $mod.
-    # Despite the name, also works for non-floating windows.
-    # Change normal to inverse to use left mouse button for resizing and right
-    # mouse button for dragging.
-    floating_modifier $mod normal
-
-    # Reload the configuration file
-    bindsym $mod+Shift+c reload
-
-    # Exit sway (logs you out of your Wayland session)
-    bindsym $mod+Shift+e exec swaynag -t warning -m 'You pressed the exit shortcut. Do you really want to exit sway? This will end your Wayland session.' -b 'Yes, exit sway' 'swaymsg exit'
-#
-# Moving around:
-#
-    # Move your focus around
-    bindsym $mod+$left focus left
-    bindsym $mod+$down focus down
-    bindsym $mod+$up focus up
-    bindsym $mod+$right focus right
-    # Or use $mod+[up|down|left|right]
-    bindsym $mod+Left focus left
-    bindsym $mod+Down focus down
-    bindsym $mod+Up focus up
-    bindsym $mod+Right focus right
-
-    # Move the focused window with the same, but add Shift
-    bindsym $mod+Shift+$left move left
-    bindsym $mod+Shift+$down move down
-    bindsym $mod+Shift+$up move up
-    bindsym $mod+Shift+$right move right
-    # Ditto, with arrow keys
-    bindsym $mod+Shift+Left move left
-    bindsym $mod+Shift+Down move down
-    bindsym $mod+Shift+Up move up
-    bindsym $mod+Shift+Right move right
-
-    # Move the focused workspace to output
-    bindsym $mod+Shift+Ctrl+$left move workspace output left
-    bindsym $mod+Shift+Ctrl+$down move workspace output down
-    bindsym $mod+Shift+Ctrl+$up move workspace output up
-    bindsym $mod+Shift+Ctrl+$right move workspace output right
-#
-# Workspaces:
-#
-    # Switch to workspace
-    bindsym $mod+1 workspace number 1
-    bindsym $mod+2 workspace number 2
-    bindsym $mod+3 workspace number 3
-    bindsym $mod+4 workspace number 4
-    bindsym $mod+5 workspace number 5
-    bindsym $mod+6 workspace number 6
-    bindsym $mod+7 workspace number 7
-    bindsym $mod+8 workspace number 8
-    bindsym $mod+9 workspace number 9
-    bindsym $mod+0 workspace number 10
-    # Move focused container to workspace
-    bindsym $mod+Shift+1 move container to workspace number 1
-    bindsym $mod+Shift+2 move container to workspace number 2
-    bindsym $mod+Shift+3 move container to workspace number 3
-    bindsym $mod+Shift+4 move container to workspace number 4
-    bindsym $mod+Shift+5 move container to workspace number 5
-    bindsym $mod+Shift+6 move container to workspace number 6
-    bindsym $mod+Shift+7 move container to workspace number 7
-    bindsym $mod+Shift+8 move container to workspace number 8
-    bindsym $mod+Shift+9 move container to workspace number 9
-    bindsym $mod+Shift+0 move container to workspace number 10
-    # Note: workspaces can have any name you want, not just numbers.
-    # We just use 1-10 as the default.
-#
-# Layout stuff:
-#
-    # You can "split" the current object of your focus with
-    # $mod+b or $mod+v, for horizontal and vertical splits
-    # respectively.
-    bindsym $mod+b splith
-    bindsym $mod+v splitv
-
-    # Switch the current container between different layout styles
-    bindsym $mod+s layout stacking
-    bindsym $mod+w layout tabbed
-    bindsym $mod+e layout toggle split
-
-    # Make the current focus fullscreen
-    # bindsym $mod+f fullscreen
-
-    # Toggle the current focus between tiling and floating mode
-    bindsym $mod+Shift+space floating toggle
-
-    # Swap focus between the tiling area and the floating area
-    bindsym $mod+space focus mode_toggle
-
-    # Move focus to the parent container
-    bindsym $mod+a focus parent
-#
-# Scratchpad:
-#
-    # Sway has a "scratchpad", which is a bag of holding for windows.
-    # You can send windows there and get them back later.
-
-    # Move the currently focused window to the scratchpad
-    bindsym $mod+Shift+minus move scratchpad
-
-    # Show the next scratchpad window or hide the focused scratchpad window.
-    # If there are multiple scratchpad windows, this command cycles through them.
-    bindsym $mod+minus scratchpad show
-#
-# Resizing containers:
-#
-mode "resize" {
-    # left will shrink the containers width
-    # right will grow the containers width
-    # up will shrink the containers height
-    # down will grow the containers height
-    bindsym $left resize shrink width 10px
-    bindsym $down resize grow height 10px
-    bindsym $up resize shrink height 10px
-    bindsym $right resize grow width 10px
-
-    # Ditto, with arrow keys
-    bindsym Left resize shrink width 10px
-    bindsym Down resize grow height 10px
-    bindsym Up resize shrink height 10px
-    bindsym Right resize grow width 10px
-
-    # Return to default mode
-    bindsym Return mode "default"
-    bindsym Escape mode "default"
-}
-bindsym $mod+r mode "resize"
-
-#
-# Status Bar:
-#
-# Read `man 5 sway-bar` for more information about this section.
-bar {
-    position top
-
-    # When the status_command prints a new line to stdout, swaybar updates.
-    # The default just shows the current date and time.
-    status_command sxmo_status_watch.sh -o pango
-    swaybar_command @waybar@
-
-    pango_markup enabled
-
-    colors {
-        statusline #ffffff
-        background #323232
-        inactive_workspace #32323200 #32323200 #5c5c5c
-        font "Sxmo"
-    }
-}
-
-for_window [app_id="foot" title=".*sxmo/modem/.*/draft.txt.*"] resize set height 25
-for_window [title="megapixels"] inhibit_idle open
-
-include /etc/sway/config.d/*
-
-exec 'printf %s "$SWAYSOCK" > "$XDG_RUNTIME_DIR"/sxmo.swaysock'
-
-exec sxmo_hook_start.sh

hosts/modules/gui/sxmo/waybar-config.nix

@@ -1,34 +0,0 @@
-# docs: https://github.com/Alexays/Waybar/wiki/Configuration
-# format specifiers: https://fmt.dev/latest/syntax.html#syntax
-{ pkgs }:
-[
-  { # TOP BAR
-    layer = "top";
-    height = 26;
-
-    modules-left = [ "sway/workspaces" ];
-    modules-center = [ ];
-    modules-right = [ "custom/sxmo" ];
-
-    "sway/workspaces" = {
-      all-outputs = true;
-      # force the bar to always show even empty workspaces
-      persistent_workspaces = {
-        "1" = [];
-        "2" = [];
-        "3" = [];
-        "4" = [];
-        "5" = [];
-      };
-    };
-
-    "custom/sxmo" = {
-      # this gives wifi state, batter, mic/speaker, lockstate, time all as one widget.
-      # a good starting point, but may want to split these apart later to make things configurable.
-      # e.g. distinct vol-up & vol-down buttons next to the speaker?
-      exec = "sxmo_status.sh";
-      interval = 1;
-      format = "{}";
-    };
-  }
-]

hosts/modules/gui/sxmo/waybar-style.css

@@ -1,64 +0,0 @@
-/* style docs: https://github.com/Alexays/Waybar/wiki/Styling */
-/* defaults: https://github.com/Alexays/Waybar/blob/master/resources/style.css */
-
-window#waybar {
-  background-color: #418379;
-  border-bottom: 0px solid #1f5e54;
-  color: #ffffff;
-  transition-property: background-color;
-  transition-duration: .2s;
-}
-
-.modules-right {
-  /* workspace buttons (LHS) get padding between it and the screen edge */
-  /* replicate that same padding for whatever's on the RHS (i.e. the clock) */
-  margin-right: 5px;
-}
-
-#workspaces button {
-  padding: 0 5px;
-  background-color: #418379;
-  color: #ffffff;
-  /* Use box-shadow instead of border so the text isn't offset */
-  box-shadow: inset 0 0px #1f5e54;
-  /* Avoid rounded borders under each workspace name */
-  border: none;
-  border-radius: 0;
-}
-
-#workspaces button:hover {
-  /* i don't want hover effects, so reset this styling to be the same as default button */
-  /* https://github.com/Alexays/Waybar/wiki/FAQ#the-workspace-buttons-have-a-strange-hover-effect */
-  background: inherit;
-  box-shadow: inherit;
-  text-shadow: inherit;
-}
-
-#workspaces button.focused {
-  background-color: #63a89c;
-  box-shadow: inset 0 0px #2c8274;
-}
-
-#workspaces button.urgent {
-  background-color: #e64291;
-}
-
-@keyframes blink {
-  to {
-    background-color: #ffffff;
-    color: #000000;
-  }
-}
-
-#tray {
-  background-color: #418379;
-}
-
-#tray > .passive {
-  -gtk-icon-effect: dim;
-}
- 
-#tray > .needs-attention {
-  -gtk-icon-effect: highlight;
-  background-color: #e64291;
-}

hosts/modules/gui/sxmo/waybar-top.nix

@@ -0,0 +1,31 @@
+# docs: https://github.com/Alexays/Waybar/wiki/Configuration
+# format specifiers: https://fmt.dev/latest/syntax.html#syntax
+# this is merged with the sway/waybar-top.nix defaults
+{
+  height = 26;
+
+  modules-left = [ "sway/workspaces" ];
+  modules-center = [ ];
+  modules-right = [ "custom/swaync" "custom/sxmo" ];
+
+  "sway/workspaces" = {
+    all-outputs = true;
+    # force the bar to always show even empty workspaces
+    persistent_workspaces = {
+      "1" = [];
+      "2" = [];
+      "3" = [];
+      "4" = [];
+      "5" = [];
+    };
+  };
+
+  "custom/sxmo" = {
+    # this gives wifi state, batter, mic/speaker, lockstate, time all as one widget.
+    # a good starting point, but may want to split these apart later to make things configurable.
+    # e.g. distinct vol-up & vol-down buttons next to the speaker?
+    exec = "sxmo_status.sh";
+    interval = 1;
+    format = "{}";
+  };
+}

hosts/modules/gui/theme/default.nix

@@ -0,0 +1,28 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.sane.gui.theme.background;
+in
+{
+  options = with lib; {
+    sane.gui.theme.background = {
+      svg = mkOption {
+        type = types.path;
+        default = ./nixos-bg-02.svg;
+      };
+      png = mkOption {
+        type = types.path;
+        default = pkgs.runCommand
+          "nixos-bg.png"
+          { nativeBuildInputs = [ pkgs.inkscape ]; }
+          ''
+            inkscape ${cfg.svg} -o $out
+          '';
+      };
+    };
+  };
+
+  config = {
+    sane.gui.sway.config.background = lib.mkDefault cfg.png;
+    sane.gui.sxmo.settings.SXMO_BG_IMG = lib.mkDefault (builtins.toString cfg.png);
+  };
+}

hosts/modules/hardware/default.nix

@@ -1,7 +0,0 @@
-{ ... }:
-
-{
-  imports = [
-    ./x86_64.nix
-  ];
-}