cross: fix emulateBuilder to use build bash in the vmRunCommand

cross: fix enableParallelBuilding to work
build bonsai/hare/qbe without relying on binfmt emulation
2023-08-05 09:40:36 +00:00 · 2023-08-05 09:33:24 +00:00 · 2023-08-05 09:33:24 +00:00
433 changed files with 9225 additions and 58937 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,2 @@
-.working
 result
-result-*
 /secrets/local.nix
--- a/README.md
+++ b/README.md
@@ -4,35 +4,17 @@ this is the top-level repo from which i configure/deploy all my NixOS machines:
 - desktop
 - laptop
 - server
- mobile phone (Pinephone)
+- mobile phone

-everything outside of <./hosts/> and <./secrets/> is intended for export, to be importable for use by 3rd parties.
-the only hard dependency for my exported pkgs/modules should be [nixpkgs][nixpkgs].
-building <./hosts/> will require [sops][sops].
-
-you might specifically be interested in these files (elaborated further in #key-points-of-interest):
- [`sxmo-utils`](./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>
+i enjoy a monorepo approach. this repo references [nixpkgs][nixpkgs], a couple 3rd party
+nix modules like [sops][sops], the sources for [uninsane.org][uninsane-org], and that's
+about it. custom derivations and modules (some of which i try to upstream) live
+directly here; even the sources for those packages is often kept here too.

 [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.
@@ -108,6 +90,12 @@ 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:
--- a/TODO.md
+++ b/TODO.md
@@ -1,14 +1,10 @@
 ## BUGS
- ringer (i.e. dino incoming call) doesn't prevent moby from sleeping
- Fractal opens links with non-preferred web browser
- `nix` operations from lappy hang when `desko` is unreachable
-  - could at least direct the cache to `http://desko-hn:5001`
- waybar isn't visible on moby until after `swaymsg reload`
+- why i need to manually restart `wireguard-wg-ovpns` on servo periodically
+  - else DNS fails
+- fix epiphany URL bar input on moby

 ## REFACTORING:

- fold hosts/common/home/ssh.nix -> hosts/common/users/colin.nix
-
 ### sops/secrets
 - attach secrets to the thing they're used by (sane.programs)
 - rework secrets to leverage `sane.fs`
@@ -16,7 +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
@@ -25,93 +21,43 @@
 - fix lightdm-mobile-greeter for newer libhandy
 - port zecwallet-lite to a from-source build
 - REVIEW/integrate jellyfin dataDir config: <https://github.com/NixOS/nixpkgs/pull/233617>
-
-#### upstreaming to non-nixpkgs repos
- gtk: build schemas even on cross compilation: <https://github.com/NixOS/nixpkgs/pull/247844>
- sxmo: add new app entries
+- remove `libsForQt5.callPackage` broadly: <https://github.com/NixOS/nixpkgs/issues/180841>


 ## 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*.
-  - 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)
-    - presumably uses the same options as systemd services
-    - see e.g. <https://github.com/NixOS/nixpkgs/issues/113903#issuecomment-857296349>
-  - flatpak does this, somehow
-  - apparmor?  SElinux?  (desktop) "portals"?
-  - see Spectrum OS; Alyssa Ross; etc
-  - bubblewrap-based sandboxing: <https://github.com/nixpak/nixpak>
+    - 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.
+    - **systemd-run** takes a command and runs it in a temporary scope (cgroup)
+      - presumably uses the same options as systemd services
+      - see e.g. <https://github.com/NixOS/nixpkgs/issues/113903#issuecomment-857296349>
+    - flatpak does this, somehow
+    - apparmor?  SElinux?  (desktop) "portals"?
+    - see Spectrum OS; Alyssa Ross; etc
+    - bubblewrap-based sandboxing: <https://github.com/nixpak/nixpak>
 - canaries for important services
-  - e.g. daily email checks; daily backup checks
-  - integrate `nix check` into Gitea actions?
-
-### faster/better deployments
- remove audacity's dependency on webkitgtk (via wxwidgets)
+    - e.g. daily email checks; daily backup checks
+    - integrate `nix check` into Gitea actions?

 ### user experience
- install apps:
-  - display QR codes for WiFi endpoints: <https://linuxphoneapps.org/apps/noappid.wisperwind.wifi2qr/>
-  - shopping list (not in nixpkgs): <https://linuxphoneapps.org/apps/ro.hume.cosmin.shoppinglist/>
-  - offline Wikipedia (or, add to `wike`)
-  - offline docs viewer (gtk): <https://github.com/workbenchdev/Biblioteca>
-  - some type of games manager/launcher
-    - Gnome Highscore (retro games)?: <https://gitlab.gnome.org/World/highscore>
-  - better maps for mobile (Osmin (QtQuick)? Pure Maps (Qt/Kirigami)? Gnome Maps is improved in 45)
-  - note-taking app: <https://linuxphoneapps.org/categories/note-taking/>
-  - OSK overlay specifically for mobile gaming
-    - i.e. mock joysticks, for use with SuperTux and SuperTuxKart
- install mobile-friendly games:
-  - Shattered Pixel Dungeon (nixpkgs `shattered-pixel-dungeon`; doesn't cross-compile b/c openjdk/libIDL) <https://github.com/ebolalex/shattered-pixel-dungeon>
-  - UnCiv (Civ V clone; nixpkgs `unciv`; doesn't cross-compile):  <https://github.com/yairm210/UnCiv>
-  - Simon Tatham's Puzzle Collection (not in nixpkgs) <https://git.tartarus.org/?p=simon/puzzles.git>
-  - Shootin Stars  (Godot; not in nixpkgs) <https://gitlab.com/greenbeast/shootin-stars>
-
-#### moby
- fix cpuidle (gets better power consumption): <https://xnux.eu/log/077.html>
- SwayNC:
-  - don't show MPRIS if no players detected
-    - this is a problem of playerctld, i guess
-    - also, the album icon when "Not playing" doesn't follow the size we give in the config
-      - that means mpris always takes up excessive space on moby
-  - 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)
- 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
- RSS: integrate a paywall bypass
-  - e.g. self-hosted [ladder](https://github.com/everywall/ladder) (like 12ft.io)
 - 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)
-  - 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 [doc-browser](https://github.com/qwfy/doc-browser)
+    - this supports both dash (zeal) *and* the datasets from <https://devdocs.io> (which includes nix!)
+    - 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
@@ -119,15 +65,17 @@

 ### 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
-  - would be super handy for package prototyping!
+    - 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!
+- why does nixos-rebuild switch take 5 minutes when net is flakey?
+    - trying to auto-mount servo?
+    - something to do with systemd services restarting/stalling
+    - 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?
- deploy to new server, and use it as a remote builder
+    - boot it from PXE from servo?
 - enable IPv6
- package lemonade lemmy app: <https://linuxphoneapps.org/apps/ml.mdwalters.lemonade/>
--- a/default.nix
+++ b/default.nix
@@ -1,9 +0,0 @@
-# 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)
-]
--- a/flake.lock
+++ b/flake.lock
@@ -5,11 +5,11 @@
        "systems": "systems"
      },
      "locked": {
-        "lastModified": 1694529238,
-        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
+        "lastModified": 1687709756,
+        "narHash": "sha256-Y5wKlQSkgEK2weWdOu4J3riRd+kV/VCgHsqLNTTWQ/0=",
        "owner": "numtide",
        "repo": "flake-utils",
-        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
+        "rev": "dbabf0ca0c0c4bce6ea5eaf65af5cb694d2082c7",
        "type": "github"
      },
      "original": {
@@ -21,27 +21,59 @@
    "mobile-nixos": {
      "flake": false,
      "locked": {
-        "lastModified": 1694749521,
-        "narHash": "sha256-MiVokKlpcJmfoGuWAMeW1En7gZ5hk0rCQArYm6P9XCc=",
+        "lastModified": 1690059310,
+        "narHash": "sha256-4zcoDp8wwZVfGSzXltC5x+eH4kDWC/eJpyQNgr7shAA=",
        "owner": "nixos",
        "repo": "mobile-nixos",
-        "rev": "d25d3b87e7f300d8066e31d792337d9cd7ecd23b",
+        "rev": "56fc9f9619f305f0865354975a98d22410eed127",
        "type": "github"
      },
      "original": {
        "owner": "nixos",
-        "ref": "d25d3b87e7f300d8066e31d792337d9cd7ecd23b",
        "repo": "mobile-nixos",
        "type": "github"
      }
    },
-    "nixpkgs-stable": {
+    "nix-serve": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      },
      "locked": {
-        "lastModified": 1700905716,
-        "narHash": "sha256-w1vHn2MbGfdC+CrP3xLZ3scsI06N0iQLU7eTHIVEFGw=",
+        "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": "dfb95385d21475da10b63da74ae96d89ab352431",
+        "rev": "19db3e5ea2777daa874563b5986288151f502e27",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "ref": "nixos-20.09",
+        "type": "indirect"
+      }
+    },
+    "nixpkgs-stable": {
+      "locked": {
+        "lastModified": 1690066826,
+        "narHash": "sha256-6L2qb+Zc0BFkh72OS9uuX637gniOjzU6qCDBpjB2LGY=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "ce45b591975d070044ca24e3003c830d26fea1c8",
        "type": "github"
      },
      "original": {
@@ -53,16 +85,16 @@
    },
    "nixpkgs-unpatched": {
      "locked": {
-        "lastModified": 1701180790,
-        "narHash": "sha256-kYWcHsk2A1VUpiOvSo7Pq175WnSVeltspTGM2q+Cr3U=",
+        "lastModified": 1691006197,
+        "narHash": "sha256-DbtxVWPt+ZP5W0Usg7jAyTomIM//c3Jtfa59Ht7AV8s=",
        "owner": "nixos",
        "repo": "nixpkgs",
-        "rev": "c9702bf40b036c0f1d3d5b0aaf3eee2bf920124c",
+        "rev": "66aedfd010204949cb225cf749be08cb13ce1813",
        "type": "github"
      },
      "original": {
        "owner": "nixos",
-        "ref": "master",
+        "ref": "nixos-unstable",
        "repo": "nixpkgs",
        "type": "github"
      }
@@ -70,6 +102,7 @@
    "root": {
      "inputs": {
        "mobile-nixos": "mobile-nixos",
+        "nix-serve": "nix-serve",
        "nixpkgs-unpatched": "nixpkgs-unpatched",
        "sops-nix": "sops-nix",
        "uninsane-dot-org": "uninsane-dot-org"
@@ -83,11 +116,11 @@
        "nixpkgs-stable": "nixpkgs-stable"
      },
      "locked": {
-        "lastModified": 1701127353,
-        "narHash": "sha256-qVNX0wOl0b7+I35aRu78xUphOyELh+mtUp1KBx89K1Q=",
+        "lastModified": 1690199016,
+        "narHash": "sha256-yTLL72q6aqGmzHq+C3rDp3rIjno7EJZkFLof6Ika7cE=",
        "owner": "Mic92",
        "repo": "sops-nix",
-        "rev": "b1edbf5c0464b4cced90a3ba6f999e671f0af631",
+        "rev": "c36df4fe4bf4bb87759b1891cab21e7a05219500",
        "type": "github"
      },
      "original": {
@@ -119,11 +152,11 @@
        ]
      },
      "locked": {
-        "lastModified": 1699515935,
-        "narHash": "sha256-cJIuVrYorhIzG5pRFZb+ZtaKhTFD92ThC42SaxvSe/E=",
+        "lastModified": 1691106178,
+        "narHash": "sha256-3mZ9gTvMpbZA9ea9ovoQpn2wKuQY0QZ7MDdEjArYdAQ=",
        "ref": "refs/heads/master",
-        "rev": "8a4273489d945f21d7e0ca6aac952460c7d4c391",
-        "revCount": 216,
+        "rev": "f4d91aa201b6e49af690f250d4786bd1d8b4dcfd",
+        "revCount": 205,
        "type": "git",
        "url": "https://git.uninsane.org/colin/uninsane"
      },
--- a/flake.nix
+++ b/flake.nix
@@ -4,8 +4,6 @@
 #   - 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.
 #
 #
@@ -36,39 +34,36 @@
    #   - staging-next merged into master.
    #
    # which branch to source from?
-    # - nixos-unstable: for everyday development; it provides good caching
-    # - master: temporarily if i'm otherwise cherry-picking lots of already-applied patches
-    # - staging-next: if testing stuff that's been PR'd into staging, i.e. base library updates.
-    # - staging: maybe if no staging-next -> master PR has been cut yet?
+    # - for everyday development, prefer `nixos-unstable` branch, as it provides good caching.
+    # - if need to test bleeding updates (e.g. if submitting code into staging):
+    #   - use `staging-next` if it's been cut (i.e. if there's an active staging-next -> master PR)
+    #   - use `staging` if no staging-next branch has been cut.
    #
    # <https://github.com/nixos/nixpkgs/tree/nixos-unstable>
-    # nixpkgs-unpatched.url = "github:nixos/nixpkgs?ref=nixos-unstable";
-    nixpkgs-unpatched.url = "github:nixos/nixpkgs?ref=master";
+    nixpkgs-unpatched.url = "github:nixos/nixpkgs?ref=nixos-unstable";
    # nixpkgs-unpatched.url = "github:nixos/nixpkgs?ref=staging-next";
    # nixpkgs-unpatched.url = "github:nixos/nixpkgs?ref=staging";

    mobile-nixos = {
      # <https://github.com/nixos/mobile-nixos>
-      # only used for building disk images, not relevant after deployment
-      # TODO: replace with something else. commit `0f3ac0bef1aea70254a3bae35e3cc2561623f4c1`
-      # replaces the imageBuilder with a "new implementation from celun" and wildly breaks my use.
-      # pinning to d25d3b... is equivalent to holding at 2023-09-15
-      url = "github:nixos/mobile-nixos?ref=d25d3b87e7f300d8066e31d792337d9cd7ecd23b";
+      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 = {
@@ -77,42 +72,26 @@
    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}";

-      evalHost = { name, local, target, light ? false }: nixpkgs.lib.nixosSystem {
+      evalHost = { name, local, target }: nixpkgs.lib.nixosSystem {
        system = target;
        modules = [
          {
@@ -125,9 +104,6 @@
            # nixpkgs.buildPlatform = local;  # set by instantiate.nix instead
            # nixpkgs.config.replaceStdenv = { pkgs }: pkgs.ccacheStdenv;
          }
-          (optionalAttrs light {
-            sane.enableSlowPrograms = false;
-          })
          (import ./hosts/instantiate.nix { hostName = name; })
          self.nixosModules.default
          self.nixosModules.passthru
@@ -143,21 +119,21 @@
      nixosConfigurations =
        let
          hosts = {
-            servo       = { name = "servo";  local = "x86_64-linux"; target = "x86_64-linux";  };
-            desko       = { name = "desko";  local = "x86_64-linux"; target = "x86_64-linux";  };
-            desko-light = { name = "desko";  local = "x86_64-linux"; target = "x86_64-linux";  light = true; };
-            lappy       = { name = "lappy";  local = "x86_64-linux"; target = "x86_64-linux";  };
-            lappy-light = { name = "lappy";  local = "x86_64-linux"; target = "x86_64-linux";  light = true; };
-            moby        = { name = "moby";   local = "x86_64-linux"; target = "aarch64-linux"; };
-            moby-light  = { name = "moby";   local = "x86_64-linux"; target = "aarch64-linux"; light = true; };
-            rescue      = { name = "rescue"; local = "x86_64-linux"; target = "x86_64-linux";  };
+            servo =  { name = "servo"; local = "x86_64-linux"; target = "x86_64-linux"; };
+            desko =  { name = "desko"; local = "x86_64-linux"; target = "x86_64-linux"; };
+            lappy =  { name = "lappy"; local = "x86_64-linux"; target = "x86_64-linux"; };
+            moby  =  { name = "moby";  local = "x86_64-linux"; target = "aarch64-linux"; };
+            rescue = { name = "rescue"; local = "x86_64-linux"; target = "x86_64-linux"; };
          };
          # cross-compiled builds: instead of emulating the host, build using a cross-compiler.
          # - these are faster to *build* than the emulated variants (useful when tweaking packages),
          # - but fewer of their packages can be found in upstream caches.
          cross = mapAttrValues evalHost hosts;
          emulated = mapAttrValues
-            (args: evalHost (args // { local = null; }))
+            ({name, local, target}: evalHost {
+              inherit name target;
+              local = null;
+            })
            hosts;
          prefixAttrs = prefix: attrs: mapAttrs'
            (name: value: {
@@ -169,9 +145,9 @@
          (prefixAttrs "cross-" cross) //
          (prefixAttrs "emulated-" emulated) // {
            # prefer native builds for these machines:
-            inherit (emulated) servo desko desko-light lappy lappy-light rescue;
+            inherit (emulated) servo desko lappy rescue;
            # prefer cross-compiled builds for these machines:
-            inherit (cross) moby moby-light;
+            inherit (cross) moby;
          };

      # unofficial output
@@ -191,9 +167,8 @@
      imgs = mapAttrValues (host: host.config.system.build.img) self.nixosConfigurations;

      # unofficial output
-      hostConfigs = mapAttrValues (host: host.config) self.nixosConfigurations;
-      hostPkgs = mapAttrValues (host: host.config.system.build.pkgs) self.nixosConfigurations;
-      hostPrograms = mapAttrValues (host: mapAttrValues (p: p.package) host.config.sane.programs) self.nixosConfigurations;
+      host-pkgs = mapAttrValues (host: host.config.system.build.pkgs) self.nixosConfigurations;
+      host-programs = mapAttrValues (host: mapAttrValues (p: p.package) host.config.sane.programs) self.nixosConfigurations;

      overlays = {
        # N.B.: `nix flake check` requires every overlay to take `final: prev:` at defn site,
@@ -209,9 +184,17 @@
          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)
          ;
      };

@@ -261,7 +244,6 @@
      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})
@@ -271,65 +253,6 @@
            # 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 $@
          '';
-          deployApp = host: addr: action: {
-            type = "app";
-            program = ''${deployScript host addr action}'';
-          };
-
-          # pkg updating.
-          # a cleaner alternative lives here: <https://discourse.nixos.org/t/how-can-i-run-the-updatescript-of-personal-packages/25274/2>
-          # mkUpdater :: [ String ] -> { type = "app"; program = path; }
-          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 {
-                "${name}" = mkUpdater (basePath ++ [ name ]);
-              } else {}
-            )
-            (pkgs.lib.getAttrFromPath basePath sanePkgs);
-          mkUpdaters = { ignore ? [], flakePrefix ? [] }@opts: basePath:
-            let
-              updaters = mkUpdatersNoAliases opts basePath;
-              invokeUpdater = name: pkg:
-                let
-                  fullPath = basePath ++ [ name ];
-                  doUpdateByDefault = !builtins.elem fullPath ignore;
-
-                  # in case `name` has a `.` in it, we have to quote it
-                  escapedPath = builtins.map (p: ''"${p}"'') fullPath;
-                  updatePath = builtins.concatStringsSep "." (flakePrefix ++ escapedPath);
-                in pkgs.lib.optionalString doUpdateByDefault (
-                  pkgs.lib.escapeShellArgs [
-                    "nix" "run" ".#${updatePath}"
-                  ]
-                );
-            in {
-              type = "app";
-              # top-level app just invokes the updater of everything one layer below it
-              program = builtins.toString (pkgs.writeShellScript
-                (builtins.concatStringsSep "-" (flakePrefix ++ basePath))
-                (builtins.concatStringsSep
-                  "\n"
-                  (pkgs.lib.mapAttrsToList invokeUpdater updaters)
-                )
-              );
-            } // updaters;
        in {
          help = {
            type = "app";
@@ -338,85 +261,44 @@
                commands:
                - `nix run '.#help'`
                  - show this message
-                - `nix run '.#update.pkgs'`
-                  - updates every package
-                - `nix run '.#update.feeds'`
+                - `nix run '.#update-feeds'`
                  - updates metadata for all feeds
                - `nix run '.#init-feed' <url>`
-                - `nix run '.#deploy.{desko,lappy,moby,servo}[-light][.test]' [nixos-rebuild args ...]`
-                - `nix run '.#check'`
-                  - make sure all systems build; NUR evaluates
-
-                specific build targets of interest:
-                - `nix build '.#imgs.rescue'`
+                - `nix run '.#deploy-{lappy,moby,moby-test,servo}' [nixos-rebuild args ...]`
+                - `nix run '.#check-nur'`
              '';
            in builtins.toString (pkgs.writeShellScript "nixos-config-help" ''
              cat ${helpMsg}
-              echo ""
-              echo "complete flake structure:"
-              nix flake show --option allow-import-from-derivation true
            '');
          };
-          # wrangle some names to get package updaters which refer back into the flake, but also conditionally ignore certain paths (e.g. sane.feeds).
-          # TODO: better design
-          update = rec {
-            _impl.pkgs.sane = mkUpdaters { flakePrefix = [ "update" "_impl" "pkgs" ]; ignore = [ [ "sane" "feeds" ] ]; } [ "sane" ];
-            pkgs = _impl.pkgs.sane;
-            _impl.feeds.sane.feeds = mkUpdaters { flakePrefix = [ "update" "_impl" "feeds" ]; } [ "sane" "feeds" ];
-            feeds = _impl.feeds.sane.feeds;
+          update-feeds = {
+            type = "app";
+            program = "${pkgs.feeds.updateScript}";
          };

          init-feed = {
            type = "app";
-            program = "${pkgs.feeds.init-feed}";
+            program = "${pkgs.feeds.initFeedScript}";
          };

-          deploy = {
-            lappy       = deployApp "lappy"       "lappy" "switch";
-            lappy-light = deployApp "lappy-light" "lappy" "switch";
-            moby        = deployApp "moby"        "moby"  "switch";
-            moby-light  = deployApp "moby-light"  "moby"  "switch";
-            moby-test   = deployApp "moby"        "moby"  "test";
-            servo       = deployApp "servo"       "servo" "switch";
-          };
-
-          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?
+          deploy-lappy = {
            type = "app";
-            program = builtins.toString (pkgs.writeShellScript "sync-to-moby" ''
-              sudo mount /mnt/moby-home
-              ${pkgs.sane-scripts.sync-music}/bin/sane-sync-music ~/Music /mnt/moby-home/Music
-            '');
+            program = ''${deployScript "lappy" "lappy" "switch"}'';
          };
-
-          sync-lappy = {
-            # copy music from servo to lappy
-            # can run this from any device that has ssh access to lappy
+          deploy-moby-test = {
            type = "app";
-            program = builtins.toString (pkgs.writeShellScript "sync-to-lappy" ''
-              sudo mount /mnt/lappy-home
-              ${pkgs.sane-scripts.sync-music}/bin/sane-sync-music /mnt/servo-media/Music /mnt/lappy-home/Music
-            '');
+            program = ''${deployScript "moby" "moby-hn" "test"}'';
          };
-
-          check = {
+          deploy-moby = {
            type = "app";
-            program = builtins.toString (pkgs.writeShellScript "check-all" ''
-              nix run '.#check.nur'
-              RC0=$?
-              nix run '.#check.host-configs'
-              RC1=$?
-              nix run '.#check.rescue'
-              RC2=$?
-              echo "nur: $RC0"
-              echo "host-configs: $RC1"
-              echo "rescue: $RC2"
-              exit $(($RC0 | $RC1 | $RC2))
-            '');
+            program = ''${deployScript "moby" "moby-hn" "switch"}'';
+          };
+          deploy-servo = {
+            type = "app";
+            program = ''${deployScript "servo" "servo" "switch"}'';
          };

-          check.nur = {
+          check-nur = {
            # `nix run '.#check-nur'`
            # validates that my repo can be included in the Nix User Repository
            type = "app";
@@ -428,49 +310,7 @@
                --option allow-import-from-derivation true \
                --drv-path --show-trace \
                -I nixpkgs=$(nix-instantiate --find-file nixpkgs) \
-                -I ../../ \
-                | tee  # tee to prevent interactive mode
-            '');
-          };
-
-          check.host-configs = {
-            type = "app";
-            program = let
-              checkHost = host: let
-                shellHost = pkgs.lib.replaceStrings [ "-" ] [ "_" ] host;
-              in ''
-                nix build -v '.#nixosConfigurations.${host}.config.system.build.toplevel' --out-link ./result-${host} -j2 $@
-                RC_${shellHost}=$?
-              '';
-            in builtins.toString (pkgs.writeShellScript
-              "check-host-configs"
-              ''
-                # build minimally-usable hosts first, then their full image.
-                # this gives me a minimal image i can deploy or copy over, early.
-                ${checkHost "desko-light"}
-                ${checkHost "moby-light"}
-                ${checkHost "lappy-light"}
-
-                ${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))
-              ''
-            );
-          };
-
-          check.rescue = {
-            type = "app";
-            program = builtins.toString (pkgs.writeShellScript "check-rescue" ''
-              nix build -v '.#imgs.rescue' --out-link ./result-rescue-img -j2
+                -I ../../
            '');
          };
        };
--- a/hosts/by-name/desko/default.nix
+++ b/hosts/by-name/desko/default.nix
@@ -11,29 +11,23 @@

  sops.secrets.colin-passwd.neededForUsers = true;

-  sane.ports.openFirewall = true;  # for e.g. nix-serve
-
  sane.roles.build-machine.enable = true;
+  sane.roles.ac = true;
  sane.roles.client = true;
  sane.roles.dev-machine = true;
-  sane.roles.pc = true;
  sane.services.wg-home.enable = true;
  sane.services.wg-home.ip = config.sane.hosts.by-name."desko".wg-home.ip;
  sane.services.duplicity.enable = true;
  sane.services.nixserve.secretKeyFile = config.sops.secrets.nix_serve_privkey.path;

-  sane.nixcache.substituters.desko = false;
-  sane.nixcache.remote-builders.desko = false;
-
  sane.gui.sway.enable = true;
  sane.programs.iphoneUtils.enableFor.user.colin = true;
  sane.programs.steam.enableFor.user.colin = true;

+  sane.programs.guiApps.suggestedPrograms = [ "desktopGuiApps" ];
+  sane.programs.consoleUtils.suggestedPrograms = [ "consoleMediaUtils" "desktopConsoleUtils" ];
  # sane.programs.devPkgs.enableFor.user.colin = true;

-  sane.programs.signal-desktop.config.autostart = true;
-  sane.programs."gnome.geary".config.autostart = true;
-
  boot.loader.efi.canTouchEfiVariables = false;
  sane.image.extraBootFiles = [ pkgs.bootpart-uefi-x86_64 ];

--- a/hosts/by-name/desko/fs.nix
+++ b/hosts/by-name/desko/fs.nix
@@ -1,13 +1,14 @@
 { ... }:

 {
+  sane.persist.root-on-tmpfs = true;
  # increase /tmp space (defaults to 50% of RAM) for building large nix things.
  # a cross-compiled kernel, particularly, will easily use 30+GB of tmp
  fileSystems."/tmp".options = [ "size=64G" ];

  fileSystems."/nix" = {
-    # device = "/dev/disk/by-uuid/0ab0770b-7734-4167-88d9-6e4e20bb2a56";
-    device = "/dev/disk/by-uuid/845d85bf-761d-431b-a406-e6f20909154f";
+    # device = "/dev/disk/by-uuid/985a0a32-da52-4043-9df7-615adec2e4ff";
+    device = "/dev/disk/by-uuid/0ab0770b-7734-4167-88d9-6e4e20bb2a56";
    fsType = "btrfs";
    options = [
      "compress=zstd"
@@ -16,8 +17,8 @@
  };

  fileSystems."/boot" = {
-    # device = "/dev/disk/by-uuid/41B6-BAEF";
-    device = "/dev/disk/by-uuid/5049-9AFD";
+    # device = "/dev/disk/by-uuid/CAA7-E7D2";
+    device = "/dev/disk/by-uuid/41B6-BAEF";
    fsType = "vfat";
  };
 }
--- a/hosts/by-name/lappy/default.nix
+++ b/hosts/by-name/lappy/default.nix
@@ -7,7 +7,6 @@

  sane.roles.client = true;
  sane.roles.dev-machine = true;
-  sane.roles.pc = true;
  sane.services.wg-home.enable = true;
  sane.services.wg-home.ip = config.sane.hosts.by-name."lappy".wg-home.ip;

@@ -16,7 +15,11 @@
  boot.loader.efi.canTouchEfiVariables = false;
  sane.image.extraBootFiles = [ pkgs.bootpart-uefi-x86_64 ];

-  sane.programs.stepmania.enableFor.user.colin = true;
+  sane.programs.guiApps.suggestedPrograms = [
+    "desktopGuiApps"
+    "stepmania"
+  ];
+  sane.programs.consoleUtils.suggestedPrograms = [ "consoleMediaUtils" "desktopConsoleUtils" ];

  sops.secrets.colin-passwd.neededForUsers = true;

--- a/hosts/by-name/lappy/fs.nix
+++ b/hosts/by-name/lappy/fs.nix
@@ -1,6 +1,8 @@
 { ... }:

 {
+  sane.persist.root-on-tmpfs = true;
+
  fileSystems."/nix" = {
    device = "/dev/disk/by-uuid/75230e56-2c69-4e41-b03e-68475f119980";
    fsType = "btrfs";
--- a/hosts/by-name/lappy/polyfill.nix
+++ b/hosts/by-name/lappy/polyfill.nix
@@ -3,15 +3,13 @@
 { pkgs, ... }:
 {
  sane.gui.sxmo = {
-    greeter = "greetd-sway-gtkgreet";
-    noidle = true;  #< power button requires 1s hold, which makes it impractical to be dealing with.
+    greeter = "sway";
    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";
@@ -29,11 +27,8 @@
      # - 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.override { preferSystemd = true; }).overrideAttrs (base: {
+    package = pkgs.sxmo-utils.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
--- a/hosts/by-name/moby/default.nix
+++ b/hosts/by-name/moby/default.nix
@@ -20,7 +20,6 @@
  ];

  sane.roles.client = true;
-  sane.roles.handheld = true;
  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;
@@ -32,56 +31,27 @@

  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.dialect.enableFor.user.colin = false;  # drags in 700MB of x86 dependencies (e.g. gtk4)
-  sane.programs.mercurial.enableFor.user.colin = false;  # does not cross compile
-  sane.programs.nvme-cli.enableFor.system = false;  # does not cross compile (libhugetlbfs)
+  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;

-  # enabled for easier debugging
-  sane.programs.eg25-control.enableFor.user.colin = true;
-  sane.programs.rtl8723cs-wowlan.enableFor.user.colin = true;
-
-  # sane.programs.ntfy-sh.config.autostart = true;
-  sane.programs.dino.config.autostart = true;
-  sane.programs.signal-desktop.config.autostart = true;
-  # sane.programs."gnome.geary".config.autostart = true;
-  # sane.programs.calls.config.autostart = true;
-  sane.programs.mpv.config.vo = "wlshm";  #< see hosts/common/programs/mpv.nix for details
-
-  sane.programs.firefox.mime.priority = 300;  # prefer other browsers when possible
+  # 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.epiphany.env.BROWSER = "epiphany";
+  # sane.programs.firefox.env = lib.mkForce {};
+  # sane.programs.epiphany.env.BROWSER = "epiphany";
+  # 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;

  boot.loader.efi.canTouchEfiVariables = false;
  # /boot space is at a premium. default was 20.
@@ -91,24 +61,23 @@
  # mobile.boot.stage-1.enable = false;
  # boot.initrd.systemd.enable = false;
  # boot.initrd.services.swraid.enable = false;  # attempt to fix dm_mod stuff
+  # disable proximity sensor.
+  # the filtering/calibration is bad that it causes the screen to go fully dark at times.
+  boot.blacklistedKernelModules = [ "stk3310" ];
+
+  # without this some GUI apps fail: `DRM_IOCTL_MODE_CREATE_DUMB failed: Cannot allocate memory`
+  # this is because they can't allocate enough video ram.
+  # the default CMA seems to be 32M.
+  # i was running fine with 256MB from 2022/07-ish through 2022/12-ish, but then the phone quit reliably coming back from sleep: maybe a memory leak?
+  # `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 chip: power negotiation, HDMI/dock)
+  #   anx7688-fw.bin  (USB-C -> HDMI bridge)
  #   ov5640_af.bin   (camera module)
  # hardware.firmware = [ config.mobile.device.firmware ];
-  # hardware.firmware = [ pkgs.rtl8723cs-firmware ];
-  hardware.firmware = [
-    (pkgs.linux-firmware-megous.override {
-      # rtl_bt = false probably means no bluetooth connectivity.
-      # N.B.: DON'T RE-ENABLE without first confirming that wake-on-lan works during suspend (rtcwake).
-      # it seems the rtl_bt stuff ("bluetooth coexist") might make wake-on-LAN radically more flaky.
-      rtl_bt = false;
-    })
-  ];
+  hardware.firmware = [ pkgs.rtl8723cs-firmware ];

  system.stateVersion = "21.11";

@@ -126,17 +95,16 @@
  # see pkgs/patched/alsa-ucm-conf for more info.
  environment.variables.ALSA_CONFIG_UCM2 = "/run/current-system/sw/share/alsa/ucm2";
  environment.pathsToLink = [ "/share/alsa/ucm2" ];
-  environment.systemPackages = [
-    (pkgs.alsa-ucm-conf-sane.override {
-      # internal speaker has a tendency to break :(
-      preferEarpiece = true;
-    })
-  ];
-  systemd = let
-    ucm-env = config.environment.variables.ALSA_CONFIG_UCM2;
-  in {
+  environment.systemPackages = [ pkgs.alsa-ucm-conf-sane ];
+  systemd =
+    let ucm-env = config.environment.variables.ALSA_CONFIG_UCM2;
+    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;
@@ -144,19 +112,6 @@
    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
@@ -170,4 +125,39 @@
    # 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
+  '';
 }
--- a/hosts/by-name/moby/fs.nix
+++ b/hosts/by-name/moby/fs.nix
@@ -1,6 +1,7 @@
 { ... }:

 {
+  sane.persist.root-on-tmpfs = true;
  fileSystems."/nix" = {
    device = "/dev/disk/by-uuid/1f1271f8-53ce-4081-8a29-60a4a6b5d6f9";
    fsType = "btrfs";
--- a/hosts/by-name/moby/gps.nix
+++ b/hosts/by-name/moby/gps.nix
@@ -7,63 +7,18 @@
 # - `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,
-# or geoclue can query the GPS directly through modem-manager
+# now, something like `gpsd` can directly read from /dev/ttyUSB1.
 #
 # initial GPS fix can take 15+ minutes.
-# meanwhile, services like eg25-manager or eg25-control-freshen-agps can speed this up by uploading assisted GPS data to the modem.
+# meanwhile, services like eg25-manager can speed this up by uploading assisted GPS data to the modem.
 #
-# 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
+# geoclue somehow fits in here as a geospatial provider that leverages GPS and also other sources like radio towers

-{ 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" ];

-  # test geoclue2 by building `geoclue2-with-demo-agent`
-  # and running "${geoclue2-with-demo-agent}/libexec/geoclue-2.0/demos/where-am-i"
-  # note that geoclue is dbus-activated, and auto-stops after 60s with no caller
-  services.geoclue2.enable = true;
-  services.geoclue2.appConfig.where-am-i = {
-    # this is the default "agent", shipped by geoclue package: allow it to use location
-    isAllowed = true;
-    isSystem = false;
-    # XXX: setting users != [] might be causing `where-am-i` to time out
-    users = [
-      # restrict to only one set of users. empty array (default) means "allow any user to access geolocation".
-      (builtins.toString config.users.users.colin.uid)
-    ];
-  };
-  systemd.services.geoclue.after = lib.mkForce [];  #< defaults to network-online, but not all my sources require network
-  users.users.geoclue.extraGroups = [
-    "dialout"  # TODO: figure out if dialout is required. that's for /dev/ttyUSB1, but geoclue probably doesn't read that?
-  ];
-
-  sane.services.eg25-control.enable = true;
-  sane.programs.where-am-i.enableFor.user.colin = true;
+  # TODO: enable eg25-manager, and bring online both the modem and GPS on boot
 }
--- a/hosts/by-name/moby/kernel.nix
+++ b/hosts/by-name/moby/kernel.nix
@@ -1,56 +1,71 @@
-{ pkgs, ... }:
+{ lib, pkgs, ... }:
 let
-  dmesg = "${pkgs.util-linux}/bin/dmesg";
-  grep = "${pkgs.gnugrep}/bin/grep";
-  modprobe = "${pkgs.kmod}/bin/modprobe";
-  ensureHWReady = ''
-    # 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
-    # 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
-    # ```
+  # use the last commit on the 5.18 branch (5.18.14)
+  # manjaro's changes between kernel patch versions tend to be minimal if any.
+  manjaroBase = "https://gitlab.manjaro.org/manjaro-arm/packages/core/linux/-/raw/25bd828cd47b1c6e09fcbcf394a649b89d2876dd";
+  manjaroPatch = name: sha256: {
+    inherit name;
+    patch = pkgs.fetchpatch {
+      inherit name;
+      url = "${manjaroBase}/${name}?inline=false";
+      inherit sha256;
+    };
+  };

-    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
-  '';
+  # the idea for patching off Manjaro's kernel comes from jakewaksbaum:
+  # - https://git.sr.ht/~jakewaksbaum/pi/tree/af20aae5653545d6e67a459b59ee3e1ca8a680b0/item/kernel/default.nix
+  # - he later abandoned this, i think because he's using the Pinephone Pro which received mainline support.
+  manjaroPatches = [
+    (manjaroPatch
+      "1001-arm64-dts-allwinner-add-hdmi-sound-to-pine-devices.patch"
+      "sha256-DApd791A+AxB28Ven/MVAyuyVphdo8KQDx8O7oxVPnc="
+    )
+    # 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, apply patches directly to stock nixos kernel:
+  # alternatively, use nixos' kernel and add the stuff we want:
+  # # 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";
@@ -65,25 +80,4 @@ in
    target = "Image.gz";  # <-- compress the kernel image
    # target = "zImage";  # <-- confuses other parts of nixos :-(
  };
-
-  # disable proximity sensor.
-  # the filtering/calibration is bad that it causes the screen to go fully dark at times.
-  boot.blacklistedKernelModules = [ "stk3310" ];
-
-  boot.kernelParams = [
-    # without this some GUI apps fail: `DRM_IOCTL_MODE_CREATE_DUMB failed: Cannot allocate memory`
-    # this is because they can't allocate enough video ram.
-    # see related nixpkgs issue: <https://github.com/NixOS/nixpkgs/issues/260222>
-    #
-    # the default CMA seems to be 32M.
-    # i was running fine with 256MB from 2022/07-ish through 2022/12-ish, but then the phone quit reliably coming back from sleep (phosh): maybe a memory leak?
-    # `cat /proc/meminfo` to see CmaTotal/CmaFree if interested in tuning this.
-    "cma=512M"
-    # 2023/10/20: potential fix for the lima (GPU) timeout bugs:
-    # - <https://gitlab.com/postmarketOS/pmaports/-/issues/805#note_890467824>
-    "lima.sched_timeout_ms=2000"
-  ];
-
-  services.xserver.displayManager.job.preStart = ensureHWReady;
-  systemd.services.greetd.preStart = ensureHWReady;
 }
--- a/hosts/modules/gui/theme/nixos-bg-02.svg
+++ b/hosts/modules/gui/theme/nixos-bg-02.svg
--- a/hosts/by-name/moby/polyfill.nix
+++ b/hosts/by-name/moby/polyfill.nix
@@ -9,6 +9,13 @@
 # - <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
@@ -20,9 +27,6 @@
    # 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;
@@ -31,10 +35,93 @@
      SXMO_LISGD_INPUT_DEVICE = "/dev/input/by-path/platform-1c2ac00.i2c-event";
      # vol and power are detected correctly by upstream

-      ### preferences
-      DEFAULT_COUNTRY = "US";

-      SXMO_AUTOROTATE = "1";  # enable auto-rotation at launch. has no meaning in stock/upstream sxmo-utils
+      ### preferences
+      # notable bemenu options:
+      #   - see `bemenu --help` for all
+      #   -P, --prefix          text to show before highlighted item.
+      #   --scrollbar           display scrollbar. (none (default), always, autohide)
+      #   -H, --line-height     defines the height to make each menu line (0 = default height). (wx)
+      #   -M, --margin          defines the empty space on either side of the menu. (wx)
+      #   -W, --width-factor    defines the relative width factor of the menu (from 0 to 1). (wx)
+      #   -B, --border          defines the width of the border in pixels around the menu. (wx)
+      #   -R  --border-radius   defines the radius of the border around the menu (0 = no curved borders).
+      #   --ch                  defines the height of the cursor (0 = scales with line height). (wx)
+      #   --cw                  defines the width of the cursor. (wx)
+      #   --hp                  defines the horizontal padding for the entries in single line mode. (wx)
+      #   --fn                  defines the font to be used ('name [size]'). (wx)
+      #   --tb                  defines the title background color. (wx)
+      #   --tf                  defines the title foreground color. (wx)
+      #   --fb                  defines the filter background color. (wx)
+      #   --ff                  defines the filter foreground color. (wx)
+      #   --nb                  defines the normal background color. (wx)
+      #   --nf                  defines the normal foreground color. (wx)
+      #   --hb                  defines the highlighted background color. (wx)
+      #   --hf                  defines the highlighted foreground color. (wx)
+      #   --fbb                 defines the feedback background color. (wx)
+      #   --fbf                 defines the feedback foreground color. (wx)
+      #   --sb                  defines the selected background color. (wx)
+      #   --sf                  defines the selected foreground color. (wx)
+      #   --ab                  defines the alternating background color. (wx)
+      #   --af                  defines the alternating foreground color. (wx)
+      #   --scb                 defines the scrollbar background color. (wx)
+      #   --scf                 defines the scrollbar foreground color. (wx)
+      #   --bdr                 defines the border color. (wx)
+      #
+      # colors are specified as `#RRGGBB`
+      # defaults:
+      # --ab "#222222"
+      # --af "#bbbbbb"
+      # --bdr "#005577"
+      # --border 3
+      # --cb "#222222"
+      # --center
+      # --cf "#bbbbbb"
+      # --fb "#222222"
+      # --fbb "#eeeeee"
+      # --fbf "#222222"
+      # --ff "#bbbbbb"
+      # --fixed-height
+      # --fn 'Sxmo 14'
+      # --hb "#005577"
+      # --hf "#eeeeee"
+      # --line-height 20
+      # --list 16
+      # --margin 40
+      # --nb "#222222"
+      # --nf "#bbbbbb"
+      # --no-overlap
+      # --no-spacing
+      # --sb "#323232"
+      # --scb "#005577"
+      # --scf "#eeeeee"
+      # --scrollbar autohide
+      # --tb "#005577"
+      # --tf "#eeeeee"
+      # --wrap
+      BEMENU_OPTS = let
+        bg = "#1d1721";       # slight purple
+        fg0 = "#d8d8d8";      # inactive text (light grey)
+        fg1 = "#ffffff";      # active text   (white)
+        accent0 = "#1f5e54";  # darker but saturated teal
+        accent1 = "#418379";  # teal (matches nixos-bg)
+        accent2 = "#5b938a";  # brighter but muted teal
+      in lib.concatStringsSep " " [
+        "--wrap --scrollbar autohide --fixed-height"
+        "--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"
+        "--bdr '${accent0}'"                     # border
+        "--scf '${accent2}' --scb '${accent0}'"  # scrollbar
+        "--tb '${accent0}' --tf '${fg0}'"        # title
+        "--fb '${accent0}' --ff '${fg1}'"        # filter (i.e. text that's been entered)
+        "--hb '${accent1}' --hf '${fg1}'"        # selected item
+        "--nb '${bg}' --nf '${fg0}'"             # normal lines (even)
+        "--ab '${bg}' --af '${fg0}'"             # alternated lines (odd)
+        "--cf '${accent0}' --cb '${accent0}'"    # cursor (not very useful)
+      ];
+      DEFAULT_COUNTRY = "US";

      # BEMENU lines (wayland DMENU):
      # - camera is 9th entry
@@ -47,6 +134,7 @@
      # - close is 16th entry
      SXMO_BEMENU_LANDSCAPE_LINES = "11";  # default 8
      SXMO_BEMENU_PORTRAIT_LINES = "16";  # default 16
+      SXMO_BG_IMG = "${bg}";
      SXMO_LOCK_IDLE_TIME = "15";  # how long between screenoff -> lock -> back to screenoff (default: 8)
      # gravity: how far to tilt the device before the screen rotates
      # for a given setting, normal <-> invert requires more movement then left <-> right
@@ -56,22 +144,9 @@
      # SXMO_ROTATION_GRAVITY = "12500";    # kinda uncomfortable when walking
      SXMO_ROTATION_GRAVITY = "12000";
      SXMO_SCREENSHOT_DIR = "/home/colin/Pictures";  # default: "$HOME"
-
-      # sway/wayland scaling:
-      # - conflicting info out there on how scaling actually works
-      #   at the least, for things where it matters (mpv), it seems like scale settings have 0 effect on perf
-      # ways to enforce scaling:
-      # - <https://wiki.archlinux.org/title/HiDPI>
-      # - `swaymsg -- output DSI-1 scale 2.0`  (scales everything)
-      # - `dconf write /org/gnome/desktop/interface/text-scaling-factor 2.0`  (scales ONLY TEXT)
-      # - `GDK_DPI_SCALE=2.0`  (scales ONLY TEXT)
-      #
-      # application notes:
-      # - cozy: in landscape, playback position is not visible unless scale <= 1.7
-      #   - if in a tab, then scale 1.6 is the max
+      # test new scales by running `swaymsg -- output DSI-1 scale x.y`
      # SXMO_SWAY_SCALE = "1.5";  # hard to press gPodder icons
-      SXMO_SWAY_SCALE = "1.6";
-      # SXMO_SWAY_SCALE = "1.8";
+      SXMO_SWAY_SCALE = "1.8";
      # SXMO_SWAY_SCALE = "2";
      SXMO_WORKSPACE_WRAPPING = "5";  # how many workspaces. default: 4

@@ -92,5 +167,13 @@
      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
+      '';
+    });
  };
 }
--- a/hosts/by-name/rescue/default.nix
+++ b/hosts/by-name/rescue/default.nix
@@ -4,15 +4,12 @@
    ./fs.nix
  ];

+  boot.loader.generic-extlinux-compatible.enable = true;
  boot.loader.efi.canTouchEfiVariables = false;
  sane.image.extraBootFiles = [ pkgs.bootpart-uefi-x86_64 ];
-  sane.persist.enable = false;
+  # sane.persist.enable = false;  # TODO: disable (but run `nix flake check` to ensure it works!)
  sane.nixcache.enable = false;  # don't want to be calling out to dead machines that we're *trying* to rescue

-  # auto-login at shell
-  services.getty.autologinUser = "colin";
-  # users.users.colin.initialPassword = "colin";
-
  # docs: https://nixos.org/manual/nixos/stable/options.html#opt-system.stateVersion
  system.stateVersion = "21.05";
 }
--- a/hosts/by-name/rescue/fs.nix
+++ b/hosts/by-name/rescue/fs.nix
@@ -1,7 +1,7 @@
 { ... }:

 {
-  fileSystems."/nix" = {
+  fileSystems."/" = {
    device = "/dev/disk/by-uuid/44445555-6666-7777-8888-999900001111";
    fsType = "ext4";
  };
--- a/hosts/by-name/servo/default.nix
+++ b/hosts/by-name/servo/default.nix
@@ -14,23 +14,20 @@
    signaldctl.enableFor.user.colin = true;
  };

+  sane.roles.ac = true;
  sane.roles.build-machine.enable = true;
  sane.roles.build-machine.emulation = false;
  sane.zsh.showDeadlines = false;  # ~/knowledge doesn't always exist
  sane.programs.consoleUtils.suggestedPrograms = [
-    "pcConsoleUtils"
+    "desktopConsoleUtils"
    "sane-scripts.stop-all-servo"
  ];
  sane.services.dyn-dns.enable = true;
  sane.services.wg-home.enable = true;
-  sane.services.wg-home.visibleToWan = true;
-  sane.services.wg-home.forwardToWan = true;
-  sane.services.wg-home.routeThroughServo = false;
+  sane.services.wg-home.enableWan = true;
  sane.services.wg-home.ip = config.sane.hosts.by-name."servo".wg-home.ip;
  sane.nixcache.substituters.servo = false;
  sane.nixcache.substituters.desko = false;
-  sane.nixcache.remote-builders.desko = false;
-  sane.nixcache.remote-builders.servo = false;
  # sane.services.duplicity.enable = true;  # TODO: re-enable after HW upgrade

  # automatically log in at the virtual consoles.
--- a/hosts/by-name/servo/fs.nix
+++ b/hosts/by-name/servo/fs.nix
@@ -1,9 +1,7 @@
 { ... }:

 {
-  # 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" ];
+  sane.persist.root-on-tmpfs = true;

  fileSystems."/nix" = {
    device = "/dev/disk/by-uuid/cc81cca0-3cc7-4d82-a00c-6243af3e7776";
@@ -35,40 +33,12 @@
  };
  sane.fs."/mnt/persist/ext".mount = {};

-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    # 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.byStore.ext = [
+  sane.persist.sys.ext = [
    {
      user = "colin";
      group = "users";
--- a/hosts/by-name/servo/net.nix
+++ b/hosts/by-name/servo/net.nix
@@ -1,233 +1,220 @@
-{ config, lib, pkgs, ... }:
+{ config, pkgs, ... }:

-let
-  portOpts = with lib; types.submodule {
-    options = {
-      visibleTo.ovpn = mkOption {
-        type = types.bool;
-        default = false;
-      };
-    };
-  };
-in
 {
-  options = with lib; {
-    sane.ports.ports = mkOption {
-      # add the `visibleTo.ovpn` option
-      type = types.attrsOf portOpts;
-    };
-  };
+  networking.domain = "uninsane.org";

-  config = {
-    networking.domain = "uninsane.org";
+  sane.ports.openFirewall = true;
+  sane.ports.openUpnp = true;

-    sane.ports.openFirewall = true;
-    sane.ports.openUpnp = true;
+  # view refused packets with: `sudo journalctl -k`
+  # networking.firewall.logRefusedPackets = true;

-    # view refused packets with: `sudo journalctl -k`
-    # networking.firewall.logRefusedPackets = true;
+  # The global useDHCP flag is deprecated, therefore explicitly set to false here.
+  # Per-interface useDHCP will be mandatory in the future, so this generated config
+  # replicates the default behaviour.
+  networking.useDHCP = false;
+  networking.interfaces.eth0.useDHCP = true;
+  # XXX colin: probably don't need this. wlan0 won't be populated unless i touch a value in networking.interfaces.wlan0
+  networking.wireless.enable = false;

-    # The global useDHCP flag is deprecated, therefore explicitly set to false here.
-    # Per-interface useDHCP will be mandatory in the future, so this generated config
-    # replicates the default behaviour.
-    networking.useDHCP = false;
-    networking.interfaces.eth0.useDHCP = true;
-    # XXX colin: probably don't need this. wlan0 won't be populated unless i touch a value in networking.interfaces.wlan0
-    networking.wireless.enable = false;
+  # this is needed to forward packets from the VPN to the host
+  boot.kernel.sysctl."net.ipv4.ip_forward" = 1;

-    # this is needed to forward packets from the VPN to the host
-    boot.kernel.sysctl."net.ipv4.ip_forward" = 1;
+  # unless we add interface-specific settings for each VPN, we have to define nameservers globally.
+  # networking.nameservers = [
+  #   "1.1.1.1"
+  #   "9.9.9.9"
+  # ];

-    # unless we add interface-specific settings for each VPN, we have to define nameservers globally.
-    # networking.nameservers = [
-    #   "1.1.1.1"
-    #   "9.9.9.9"
-    # ];
+  # use systemd's stub resolver.
+  # /etc/resolv.conf isn't sophisticated enough to use different servers per net namespace (or link).
+  # instead, running the stub resolver on a known address in the root ns lets us rewrite packets
+  # in the ovnps namespace to use the provider's DNS resolvers.
+  # a weakness is we can only query 1 NS at a time (unless we were to clone the packets?)
+  # there also seems to be some cache somewhere that's shared between the two namespaces.
+  # i think this is a libc thing. might need to leverage proper cgroups to _really_ kill it.
+  # - getent ahostsv4 www.google.com
+  # - try fix: <https://serverfault.com/questions/765989/connect-to-3rd-party-vpn-server-but-dont-use-it-as-the-default-route/766290#766290>
+  services.resolved.enable = true;
+  # without DNSSEC:
+  # - dig matrix.org => works
+  # - curl https://matrix.org => works
+  # with default DNSSEC:
+  # - dig matrix.org => works
+  # - curl https://matrix.org => fails
+  # i don't know why. this might somehow be interfering with the DNS run on this device (trust-dns)
+  services.resolved.dnssec = "false";
+  networking.nameservers = [
+    # use systemd-resolved resolver
+    # full resolver (which understands /etc/hosts) lives on 127.0.0.53
+    # stub resolver (just forwards upstream) lives on 127.0.0.54
+    "127.0.0.53"
+  ];

-    # use systemd's stub resolver.
-    # /etc/resolv.conf isn't sophisticated enough to use different servers per net namespace (or link).
-    # instead, running the stub resolver on a known address in the root ns lets us rewrite packets
-    # in the ovnps namespace to use the provider's DNS resolvers.
-    # a weakness is we can only query 1 NS at a time (unless we were to clone the packets?)
-    # there also seems to be some cache somewhere that's shared between the two namespaces.
-    # i think this is a libc thing. might need to leverage proper cgroups to _really_ kill it.
-    # - getent ahostsv4 www.google.com
-    # - try fix: <https://serverfault.com/questions/765989/connect-to-3rd-party-vpn-server-but-dont-use-it-as-the-default-route/766290#766290>
-    services.resolved.enable = true;
-    # without DNSSEC:
-    # - dig matrix.org => works
-    # - curl https://matrix.org => works
-    # with default DNSSEC:
-    # - dig matrix.org => works
-    # - curl https://matrix.org => fails
-    # i don't know why. this might somehow be interfering with the DNS run on this device (trust-dns)
-    services.resolved.dnssec = "false";
-    networking.nameservers = [
-      # use systemd-resolved resolver
-      # full resolver (which understands /etc/hosts) lives on 127.0.0.53
-      # stub resolver (just forwards upstream) lives on 127.0.0.54
-      "127.0.0.53"
+  # nscd -- the Name Service Caching Daemon -- caches DNS query responses
+  # in a way that's unaware of my VPN routing, so routes are frequently poor against
+  # services which advertise different IPs based on geolocation.
+  # nscd claims to be usable without a cache, but in practice i can't get it to not cache!
+  # nsncd is the Name Service NON-Caching Daemon. it's a drop-in that doesn't cache;
+  # this is OK on the host -- because systemd-resolved caches. it's probably sub-optimal
+  # in the netns and we query upstream DNS more often than needed. hm.
+  # TODO: run a separate recursive resolver in each namespace.
+  services.nscd.enableNsncd = true;
+
+  # services.resolved.extraConfig = ''
+  #   # docs: `man resolved.conf`
+  #   # DNS servers to use via the `wg-ovpns` interface.
+  #   #   i hope that from the root ns, these aren't visible.
+  #   DNS=46.227.67.134%wg-ovpns 192.165.9.158%wg-ovpns
+  #   FallbackDNS=1.1.1.1 9.9.9.9
+  # '';
+
+  # OVPN CONFIG (https://www.ovpn.com):
+  # DOCS: https://nixos.wiki/wiki/WireGuard
+  # if you `systemctl restart wireguard-wg-ovpns`, make sure to also restart any other services in `NetworkNamespacePath = .../ovpns`.
+  # TODO: why not create the namespace as a seperate operation (nix config for that?)
+  networking.wireguard.enable = true;
+  networking.wireguard.interfaces.wg-ovpns = let
+    ip = "${pkgs.iproute2}/bin/ip";
+    in-ns = "${ip} netns exec ovpns";
+    iptables = "${pkgs.iptables}/bin/iptables";
+    veth-host-ip = "10.0.1.5";
+    veth-local-ip = "10.0.1.6";
+    vpn-ip = "185.157.162.178";
+    # DNS = 46.227.67.134, 192.165.9.158, 2a07:a880:4601:10f0:cd45::1, 2001:67c:750:1:cafe:cd45::1
+    vpn-dns = "46.227.67.134";
+  in {
+    privateKeyFile = config.sops.secrets.wg_ovpns_privkey.path;
+    # wg is active only in this namespace.
+    # run e.g. ip netns exec ovpns <some command like ping/curl/etc, it'll go through wg>
+    #   sudo ip netns exec ovpns ping www.google.com
+    interfaceNamespace = "ovpns";
+    ips = [
+      "185.157.162.178/32"
    ];
-
-    # nscd -- the Name Service Caching Daemon -- caches DNS query responses
-    # in a way that's unaware of my VPN routing, so routes are frequently poor against
-    # services which advertise different IPs based on geolocation.
-    # nscd claims to be usable without a cache, but in practice i can't get it to not cache!
-    # nsncd is the Name Service NON-Caching Daemon. it's a drop-in that doesn't cache;
-    # this is OK on the host -- because systemd-resolved caches. it's probably sub-optimal
-    # in the netns and we query upstream DNS more often than needed. hm.
-    # TODO: run a separate recursive resolver in each namespace.
-    services.nscd.enableNsncd = true;
-
-    # services.resolved.extraConfig = ''
-    #   # docs: `man resolved.conf`
-    #   # DNS servers to use via the `wg-ovpns` interface.
-    #   #   i hope that from the root ns, these aren't visible.
-    #   DNS=46.227.67.134%wg-ovpns 192.165.9.158%wg-ovpns
-    #   FallbackDNS=1.1.1.1 9.9.9.9
-    # '';
-
-    # OVPN CONFIG (https://www.ovpn.com):
-    # DOCS: https://nixos.wiki/wiki/WireGuard
-    # if you `systemctl restart wireguard-wg-ovpns`, make sure to also restart any other services in `NetworkNamespacePath = .../ovpns`.
-    # TODO: why not create the namespace as a seperate operation (nix config for that?)
-    networking.wireguard.enable = true;
-    networking.wireguard.interfaces.wg-ovpns = let
-      ip = "${pkgs.iproute2}/bin/ip";
-      in-ns = "${ip} netns exec ovpns";
-      iptables = "${pkgs.iptables}/bin/iptables";
-      veth-host-ip = "10.0.1.5";
-      veth-local-ip = "10.0.1.6";
-      vpn-ip = "185.157.162.178";
-      # DNS = 46.227.67.134, 192.165.9.158, 2a07:a880:4601:10f0:cd45::1, 2001:67c:750:1:cafe:cd45::1
-      vpn-dns = "46.227.67.134";
-      bridgePort = port: proto: ''
-        ${in-ns} ${iptables} -A PREROUTING -t nat -p ${proto} --dport ${port} -m iprange --dst-range ${vpn-ip} \
-          -j DNAT --to-destination ${veth-host-ip}
-      '';
-      bridgeStatements = lib.foldlAttrs
-        (acc: port: portCfg: acc ++ (builtins.map (bridgePort port) portCfg.protocol))
-        []
-        config.sane.ports.ports;
-    in {
-      privateKeyFile = config.sops.secrets.wg_ovpns_privkey.path;
-      # wg is active only in this namespace.
-      # run e.g. ip netns exec ovpns <some command like ping/curl/etc, it'll go through wg>
-      #   sudo ip netns exec ovpns ping www.google.com
-      interfaceNamespace = "ovpns";
-      ips = [
-        "185.157.162.178/32"
-      ];
-      peers = [
-        {
-          publicKey = "SkkEZDCBde22KTs/Hc7FWvDBfdOCQA4YtBEuC3n5KGs=";
-          endpoint = "185.157.162.10:9930";
-          # alternatively: use hostname, but that presents bootstrapping issues (e.g. if host net flakes)
-          # endpoint = "vpn36.prd.amsterdam.ovpn.com:9930";
-          allowedIPs = [ "0.0.0.0/0" ];
-          # nixOS says this is important for keeping NATs active
-          persistentKeepalive = 25;
-          # re-executes wg this often. docs hint that this might help wg notice DNS/hostname changes.
-          # so, maybe that helps if we specify endpoint as a domain name
-          # dynamicEndpointRefreshSeconds = 30;
-          # when refresh fails, try it again after this period instead.
-          # TODO: not avail until nixpkgs upgrade
-          # dynamicEndpointRefreshRestartSeconds = 5;
-        }
-      ];
-      preSetup = ''
-        ${ip} netns add ovpns || echo "ovpns already exists"
-      '';
-      postShutdown = ''
-        ${in-ns} ip link del ovpns-veth-b || echo "couldn't delete ovpns-veth-b"
-        ${ip} link del ovpns-veth-a || echo "couldn't delete ovpns-veth-a"
-        ${ip} netns delete ovpns || echo "couldn't delete ovpns"
-        # restore rules/routes
-        ${ip} rule del from ${veth-host-ip} lookup ovpns pref 50 || echo "couldn't delete init -> ovpns rule"
-        ${ip} route del default via ${veth-local-ip} dev ovpns-veth-a proto kernel src ${veth-host-ip} metric 1002 table ovpns || echo "couldn't delete init -> ovpns route"
-        ${ip} rule add from all lookup local pref 0
-        ${ip} rule del from all lookup local pref 100
-      '';
-      postSetup = ''
-        # DOCS:
-        # - some of this approach is described here: <https://josephmuia.ca/2018-05-16-net-namespaces-veth-nat/>
-        # - iptables primer: <https://danielmiessler.com/study/iptables/>
-        # create veth pair
-        ${ip} link add ovpns-veth-a type veth peer name ovpns-veth-b
-        ${ip} addr add ${veth-host-ip}/24 dev ovpns-veth-a
-        ${ip} link set ovpns-veth-a up
-
-        # mv veth-b into the ovpns namespace
-        ${ip} link set ovpns-veth-b netns ovpns
-        ${in-ns} ip addr add ${veth-local-ip}/24 dev ovpns-veth-b
-        ${in-ns} ip link set ovpns-veth-b up
-
-        # make it so traffic originating from the host side of the veth
-        # is sent over the veth no matter its destination.
-        ${ip} rule add from ${veth-host-ip} lookup ovpns pref 50
-        # for traffic originating at the host veth to the WAN, use the veth as our gateway
-        # not sure if the metric 1002 matters.
-        ${ip} route add default via ${veth-local-ip} dev ovpns-veth-a proto kernel src ${veth-host-ip} metric 1002 table ovpns
-        # give the default route lower priority
-        ${ip} rule add from all lookup local pref 100
-        ${ip} rule del from all lookup local pref 0
-
-        # in order to access DNS in this netns, we need to route it to the VPN's nameservers
-        # - alternatively, we could fix DNS servers like 1.1.1.1.
-        ${in-ns} ${iptables} -A OUTPUT -t nat -p udp --dport 53 -m iprange --dst-range 127.0.0.53 \
-          -j DNAT --to-destination ${vpn-dns}:53
-      '' + (lib.concatStringsSep "\n" bridgeStatements);
-    };
-
-    # create a new routing table that we can use to proxy traffic out of the root namespace
-    # through the ovpns namespace, and to the WAN via VPN.
-    networking.iproute2.rttablesExtraConfig = ''
-      5 ovpns
+    peers = [
+      {
+        publicKey = "SkkEZDCBde22KTs/Hc7FWvDBfdOCQA4YtBEuC3n5KGs=";
+        endpoint = "185.157.162.10:9930";
+        # alternatively: use hostname, but that presents bootstrapping issues (e.g. if host net flakes)
+        # endpoint = "vpn36.prd.amsterdam.ovpn.com:9930";
+        allowedIPs = [ "0.0.0.0/0" ];
+        # nixOS says this is important for keeping NATs active
+        persistentKeepalive = 25;
+        # re-executes wg this often. docs hint that this might help wg notice DNS/hostname changes.
+        # so, maybe that helps if we specify endpoint as a domain name
+        # dynamicEndpointRefreshSeconds = 30;
+        # when refresh fails, try it again after this period instead.
+        # TODO: not avail until nixpkgs upgrade
+        # dynamicEndpointRefreshRestartSeconds = 5;
+      }
+    ];
+    preSetup = "" + ''
+      ${ip} netns add ovpns || echo "ovpns already exists"
    '';
-    networking.iproute2.enable = true;
+    postShutdown = "" + ''
+      ${in-ns} ip link del ovpns-veth-b || echo "couldn't delete ovpns-veth-b"
+      ${ip} link del ovpns-veth-a || echo "couldn't delete ovpns-veth-a"
+      ${ip} netns delete ovpns || echo "couldn't delete ovpns"
+      # restore rules/routes
+      ${ip} rule del from ${veth-host-ip} lookup ovpns pref 50 || echo "couldn't delete init -> ovpns rule"
+      ${ip} route del default via ${veth-local-ip} dev ovpns-veth-a proto kernel src ${veth-host-ip} metric 1002 table ovpns || echo "couldn't delete init -> ovpns route"
+      ${ip} rule add from all lookup local pref 0
+      ${ip} rule del from all lookup local pref 100
+    '';
+    postSetup = "" + ''
+      # DOCS:
+      # - some of this approach is described here: <https://josephmuia.ca/2018-05-16-net-namespaces-veth-nat/>
+      # - iptables primer: <https://danielmiessler.com/study/iptables/>
+      # create veth pair
+      ${ip} link add ovpns-veth-a type veth peer name ovpns-veth-b
+      ${ip} addr add ${veth-host-ip}/24 dev ovpns-veth-a
+      ${ip} link set ovpns-veth-a up

+      # mv veth-b into the ovpns namespace
+      ${ip} link set ovpns-veth-b netns ovpns
+      ${in-ns} ip addr add ${veth-local-ip}/24 dev ovpns-veth-b
+      ${in-ns} ip link set ovpns-veth-b up

-    # HURRICANE ELECTRIC CONFIG:
-    # networking.sits = {
-    #   hurricane = {
-    #     remote = "216.218.226.238";
-    #     local = "192.168.0.5";
-    #     # local = "10.0.0.5";
-    #     # remote = "10.0.0.1";
-    #     # local = "10.0.0.22";
-    #     dev = "eth0";
-    #     ttl = 255;
-    #   };
-    # };
-    # networking.interfaces."hurricane".ipv6 = {
-    #   addresses = [
-    #     # mx.uninsane.org (publically routed /64)
-    #     {
-    #       address = "2001:470:b:465::1";
-    #       prefixLength = 128;
-    #     }
-    #     # client addr
-    #     # {
-    #     #   address = "2001:470:a:466::2";
-    #     #   prefixLength = 64;
-    #     # }
-    #   ];
-    #   routes = [
-    #     {
-    #       address = "::";
-    #       prefixLength = 0;
-    #       # via = "2001:470:a:466::1";
-    #     }
-    #   ];
-    # };
+      # make it so traffic originating from the host side of the veth
+      # is sent over the veth no matter its destination.
+      ${ip} rule add from ${veth-host-ip} lookup ovpns pref 50
+      # for traffic originating at the host veth to the WAN, use the veth as our gateway
+      # not sure if the metric 1002 matters.
+      ${ip} route add default via ${veth-local-ip} dev ovpns-veth-a proto kernel src ${veth-host-ip} metric 1002 table ovpns
+      # give the default route lower priority
+      ${ip} rule add from all lookup local pref 100
+      ${ip} rule del from all lookup local pref 0

-    # # after configuration, we want the hurricane device to look like this:
-    # # hurricane: flags=209<UP,POINTOPOINT,RUNNING,NOARP>  mtu 1480
-    # #            inet6 2001:470:a:450::2  prefixlen 64  scopeid 0x0<global>
-    # #            inet6 fe80::c0a8:16  prefixlen 64  scopeid 0x20<link>
-    # #            sit  txqueuelen 1000  (IPv6-in-IPv4)
-    # # test with:
-    # #   curl --interface hurricane http://[2607:f8b0:400a:80b::2004]
-    # #   ping 2607:f8b0:400a:80b::2004
+      # bridge HTTP traffic:
+      # any external port-80 request sent to the VPN addr will be forwarded to the rootns.
+      # this exists so LetsEncrypt can procure a cert for the MX over http.
+      # TODO: we could use _acme_challence.mx.uninsane.org CNAME to avoid this forwarding
+      # - <https://community.letsencrypt.org/t/where-does-letsencrypt-resolve-dns-from/37607/8>
+      ${in-ns} ${iptables} -A PREROUTING -t nat -p tcp --dport 80 -m iprange --dst-range ${vpn-ip} \
+        -j DNAT --to-destination ${veth-host-ip}:80
+
+      # we also bridge DNS traffic
+      ${in-ns} ${iptables} -A PREROUTING -t nat -p udp --dport 53 -m iprange --dst-range ${vpn-ip} \
+        -j DNAT --to-destination ${veth-host-ip}
+      ${in-ns} ${iptables} -A PREROUTING -t nat -p tcp --dport 53 -m iprange --dst-range ${vpn-ip} \
+        -j DNAT --to-destination ${veth-host-ip}
+
+      # in order to access DNS in this netns, we need to route it to the VPN's nameservers
+      # - alternatively, we could fix DNS servers like 1.1.1.1.
+      ${in-ns} ${iptables} -A OUTPUT -t nat -p udp --dport 53 -m iprange --dst-range 127.0.0.53 \
+        -j DNAT --to-destination ${vpn-dns}:53
+    '';
  };
+
+  # create a new routing table that we can use to proxy traffic out of the root namespace
+  # through the ovpns namespace, and to the WAN via VPN.
+  networking.iproute2.rttablesExtraConfig = ''
+    5 ovpns
+  '';
+  networking.iproute2.enable = true;
+
+
+  # HURRICANE ELECTRIC CONFIG:
+  # networking.sits = {
+  #   hurricane = {
+  #     remote = "216.218.226.238";
+  #     local = "192.168.0.5";
+  #     # local = "10.0.0.5";
+  #     # remote = "10.0.0.1";
+  #     # local = "10.0.0.22";
+  #     dev = "eth0";
+  #     ttl = 255;
+  #   };
+  # };
+  # networking.interfaces."hurricane".ipv6 = {
+  #   addresses = [
+  #     # mx.uninsane.org (publically routed /64)
+  #     {
+  #       address = "2001:470:b:465::1";
+  #       prefixLength = 128;
+  #     }
+  #     # client addr
+  #     # {
+  #     #   address = "2001:470:a:466::2";
+  #     #   prefixLength = 64;
+  #     # }
+  #   ];
+  #   routes = [
+  #     {
+  #       address = "::";
+  #       prefixLength = 0;
+  #       # via = "2001:470:a:466::1";
+  #     }
+  #   ];
+  # };
+
+  # # after configuration, we want the hurricane device to look like this:
+  # # hurricane: flags=209<UP,POINTOPOINT,RUNNING,NOARP>  mtu 1480
+  # #            inet6 2001:470:a:450::2  prefixlen 64  scopeid 0x0<global>
+  # #            inet6 fe80::c0a8:16  prefixlen 64  scopeid 0x20<link>
+  # #            sit  txqueuelen 1000  (IPv6-in-IPv4)
+  # # test with:
+  # #   curl --interface hurricane http://[2607:f8b0:400a:80b::2004]
+  # #   ping 2607:f8b0:400a:80b::2004
 }
--- a/hosts/by-name/servo/services/calibre.nix
+++ b/hosts/by-name/servo/services/calibre.nix
@@ -12,7 +12,7 @@ in
 # > AttributeError: 'NoneType' object has no attribute 'query'
 lib.mkIf false
 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    { inherit user group; mode = "0700"; path = svc-dir; }
  ];

--- a/hosts/by-name/servo/services/coturn.nix
+++ b/hosts/by-name/servo/services/coturn.nix
@@ -1,124 +0,0 @@
-# TURN/STUN NAT traversal service
-# commonly used to establish realtime calls with prosody, or possibly matrix/synapse
-#
-# - <https://github.com/coturn/coturn/>
-# - `man turnserver`
-# - config docs: <https://github.com/coturn/coturn/blob/master/examples/etc/turnserver.conf>
-#
-# N.B. during operation it's NORMAL to see "error 401".
-# during session creation:
-# - client sends Allocate request
-# - server replies error 401, providing a realm and nonce
-# - client uses realm + nonce + shared secret to construct an auth key & call Allocate again
-# - server replies Allocate Success Response
-# - source: <https://stackoverflow.com/a/66643135>
-#
-# N.B. this safest implementation routes all traffic THROUGH A VPN
-# - that adds a lot of latency, but in practice turns out to be inconsequential.
-#   i guess ICE allows clients to prefer the other party's lower-latency server, in practice?
-# - still, this is the "safe" implementation because STUN works with IP addresses instead of domain names:
-#   1. client A queries the STUN server to determine its own IP address/port.
-#   2. client A tells client B which IP address/port client A is visible on.
-#   3. client B contacts that IP address/port
-#   this only works so long as the IP address/port which STUN server sees client A on is publicly routable.
-#   that is NOT the case when the STUN server and client A are on the same LAN
-#   even if client A contacts the STUN server via its WAN address with port reflection enabled.
-#   hence, there's no obvious way to put the STUN server on the same LAN as either client and expect the rest to work.
-{ lib, ... }:
-let
-  # 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.ports.ports = lib.mkMerge ([
-    {
-      "3478" = {
-        # this is the "control" port.
-        # i.e. no client data is forwarded through it, but it's where clients request tunnels.
-        protocol = [ "tcp" "udp" ];
-        # visibleTo.lan = true;
-        # visibleTo.wan = true;
-        visibleTo.ovpn = true;
-        description = "colin-stun-turn";
-      };
-      "5349" = {
-        # the other port 3478 also supports TLS/DTLS, but presumably clients wanting TLS will default 5349
-        protocol = [ "tcp" ];
-        # visibleTo.lan = true;
-        # visibleTo.wan = true;
-        visibleTo.ovpn = true;
-        description = "colin-stun-turn-over-tls";
-      };
-    }
-  ] ++ (builtins.map
-    (port: {
-      "${builtins.toString port}" = let
-        count = port - turnPortLow + 1;
-        numPorts = turnPortHigh - turnPortLow + 1;
-      in {
-        protocol = [ "tcp" "udp" ];
-        # visibleTo.lan = true;
-        # visibleTo.wan = true;
-        visibleTo.ovpn = true;
-        description = "colin-turn-${builtins.toString count}-of-${builtins.toString numPorts}";
-      };
-    })
-    turnPortRange
-  ));
-
-  services.nginx.virtualHosts."turn.uninsane.org" = {
-    # allow ACME to procure a cert via nginx for this domain
-    enableACME = true;
-  };
-  sane.dns.zones."uninsane.org".inet = {
-    # CNAME."turn" = "servo.wan";
-    # CNAME."turn" = "ovpns";
-    # CNAME."turn" = "native";
-    # XXX: SRV records have to point to something with a A/AAAA record; no CNAMEs
-    A."turn" = "%AOVPNS%";
-    # A."turn" = "%AWAN%";
-
-    SRV."_stun._udp" =                        "5 50 3478 turn";
-    SRV."_stun._tcp" =                        "5 50 3478 turn";
-    SRV."_stuns._tcp" =                       "5 50 5349 turn";
-    SRV."_turn._udp" =                        "5 50 3478 turn";
-    SRV."_turn._tcp" =                        "5 50 3478 turn";
-    SRV."_turns._tcp" =                       "5 50 5349 turn";
-  };
-
-  sane.derived-secrets."/var/lib/coturn/shared_secret.bin" = {
-    encoding = "base64";
-    # TODO: make this not globally readable
-    acl.mode = "0644";
-  };
-  sane.fs."/var/lib/coturn/shared_secret.bin".wantedBeforeBy = [ "coturn.service" ];
-
-  # provide access to certs
-  users.users.turnserver.extraGroups = [ "nginx" ];
-
-  services.coturn.enable = true;
-  services.coturn.realm = "turn.uninsane.org";
-  services.coturn.cert = "/var/lib/acme/turn.uninsane.org/fullchain.pem";
-  services.coturn.pkey = "/var/lib/acme/turn.uninsane.org/key.pem";
-  services.coturn.use-auth-secret = true;
-  services.coturn.static-auth-secret-file = "/var/lib/coturn/shared_secret.bin";
-  services.coturn.lt-cred-mech = true;
-  services.coturn.min-port = turnPortLow;
-  services.coturn.max-port = turnPortHigh;
-  # services.coturn.secure-stun = true;
-  services.coturn.extraConfig = lib.concatStringsSep "\n" [
-    "verbose"
-    # "Verbose"  #< even MORE verbosity than "verbose"
-    # "no-multicast-peers"  # disables sending to IPv4 broadcast addresses (e.g. 224.0.0.0/3)
-    "listening-ip=10.0.1.5"
-    # "external-ip=185.157.162.178/10.0.1.5"
-    "external-ip=185.157.162.178"
-    # "listening-ip=10.78.79.51"  # can be specified multiple times; omit for *
-    # "external-ip=97.113.128.229/10.78.79.51"
-    # "external-ip=97.113.128.229"
-    # "mobility"  # "mobility with ICE (MICE) specs support" (?)
-  ];
-}
--- a/hosts/by-name/servo/services/default.nix
+++ b/hosts/by-name/servo/services/default.nix
@@ -2,13 +2,12 @@
 {
  imports = [
    ./calibre.nix
-    ./coturn.nix
    ./ddns-afraid.nix
    ./ddns-he.nix
    ./email
    ./ejabberd.nix
    ./freshrss.nix
-    ./export
+    ./ftp
    ./gitea.nix
    ./goaccess.nix
    ./ipfs.nix
@@ -18,16 +17,14 @@
    ./komga.nix
    ./lemmy.nix
    ./matrix
-    ./monero.nix
    ./navidrome.nix
-    ./nginx.nix
+    ./nfs.nix
    ./nixserve.nix
-    ./ntfy
+    ./nginx.nix
    ./pict-rs.nix
    ./pleroma.nix
    ./postgres.nix
-    ./prosody
-    ./slskd.nix
+    ./prosody.nix
    ./transmission.nix
    ./trust-dns.nix
    ./wikipedia.nix
--- a/hosts/by-name/servo/services/ejabberd.nix
+++ b/hosts/by-name/servo/services/ejabberd.nix
@@ -14,111 +14,76 @@
 #
 # 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, ... }:

-let
-  # 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
-# XXX(2023/10/15): disabled in favor of Prosody.
-# everything configured below was fine: used ejabberd for several months.
-lib.mkIf false
+# XXX: avatar support works in MUCs but not DMs
+# lib.mkIf false
 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    { user = "ejabberd"; group = "ejabberd"; path = "/var/lib/ejabberd"; }
  ];
-  sane.ports.ports = lib.mkMerge ([
-    {
-      "3478" = {
-        protocol = [ "tcp" "udp" ];
-        visibleTo.lan = true;
-        visibleTo.wan = true;
-        description = "colin-xmpp-stun-turn";
-      };
-      "5222" = {
-        protocol = [ "tcp" ];
-        visibleTo.lan = true;
-        visibleTo.wan = true;
-        description = "colin-xmpp-client-to-server";
-      };
-      "5223" = {
-        protocol = [ "tcp" ];
-        visibleTo.lan = true;
-        visibleTo.wan = true;
-        description = "colin-xmpps-client-to-server";  # XMPP over TLS
-      };
-      "5269" = {
-        protocol = [ "tcp" ];
-        visibleTo.wan = true;
-        description = "colin-xmpp-server-to-server";
-      };
-      "5270" = {
-        protocol = [ "tcp" ];
-        visibleTo.wan = true;
-        description = "colin-xmpps-server-to-server";  # XMPP over TLS
-      };
-      "5280" = {
-        protocol = [ "tcp" ];
-        visibleTo.lan = true;
-        visibleTo.wan = true;
-        description = "colin-xmpp-bosh";
-      };
-      "5281" = {
-        protocol = [ "tcp" ];
-        visibleTo.lan = true;
-        visibleTo.wan = true;
-        description = "colin-xmpp-bosh-https";
-      };
-      "5349" = {
-        protocol = [ "tcp" ];
-        visibleTo.lan = true;
-        visibleTo.wan = true;
-        description = "colin-xmpp-stun-turn-over-tls";
-      };
-      "5443" = {
-        protocol = [ "tcp" ];
-        visibleTo.lan = true;
-        visibleTo.wan = true;
-        description = "colin-xmpp-web-services";  # file uploads, websockets, admin
-      };
-    }
-  ] ++ (builtins.map
-    (port: {
-      "${builtins.toString port}" = let
-        count = port - turnPortLow + 1;
-        numPorts = turnPortHigh - turnPortLow + 1;
-      in {
-        protocol = [ "tcp" "udp" ];
-        visibleTo.lan = true;
-        visibleTo.wan = true;
-        description = "colin-xmpp-turn-${builtins.toString count}-of-${builtins.toString numPorts}";
-      };
-    })
-    turnPortRange
-  ));
+  sane.ports.ports."3478" = {
+    protocol = [ "tcp" "udp" ];
+    visibleTo.lan = true;
+    visibleTo.wan = true;
+    description = "colin-xmpp-stun-turn";
+  };
+  sane.ports.ports."5222" = {
+    protocol = [ "tcp" ];
+    visibleTo.lan = true;
+    visibleTo.wan = true;
+    description = "colin-xmpp-client-to-server";
+  };
+  sane.ports.ports."5223" = {
+    protocol = [ "tcp" ];
+    visibleTo.lan = true;
+    visibleTo.wan = true;
+    description = "colin-xmpps-client-to-server";  # XMPP over TLS
+  };
+  sane.ports.ports."5269" = {
+    protocol = [ "tcp" ];
+    visibleTo.wan = true;
+    description = "colin-xmpp-server-to-server";
+  };
+  sane.ports.ports."5270" = {
+    protocol = [ "tcp" ];
+    visibleTo.wan = true;
+    description = "colin-xmpps-server-to-server";  # XMPP over TLS
+  };
+  sane.ports.ports."5280" = {
+    protocol = [ "tcp" ];
+    visibleTo.lan = true;
+    visibleTo.wan = true;
+    description = "colin-xmpp-bosh";
+  };
+  sane.ports.ports."5281" = {
+    protocol = [ "tcp" ];
+    visibleTo.lan = true;
+    visibleTo.wan = true;
+    description = "colin-xmpp-bosh-https";
+  };
+  sane.ports.ports."5349" = {
+    protocol = [ "tcp" ];
+    visibleTo.lan = true;
+    visibleTo.wan = true;
+    description = "colin-xmpp-stun-turn-over-tls";
+  };
+  sane.ports.ports."5443" = {
+    protocol = [ "tcp" ];
+    visibleTo.lan = true;
+    visibleTo.wan = true;
+    description = "colin-xmpp-web-services";  # file uploads, websockets, admin
+  };

-  # this ejabberd config uses builtin STUN/TURN server, so hack to ensure no other implementation fights for ports
-  services.coturn.enable = false;
+  # TODO: forward these TURN ports!
+  networking.firewall.allowedTCPPortRanges = [{
+    from = 49152;  # TURN
+    to = 49408;
+  }];
+  networking.firewall.allowedUDPPortRanges = [{
+    from = 49152;  # TURN
+    to = 49408;
+  }];

  # provide access to certs
  # TODO: this should just be `acme`. then we also add nginx to the `acme` group.
@@ -185,285 +150,284 @@ lib.mkIf false
  services.ejabberd.enable = true;
  services.ejabberd.configFile = "/var/lib/ejabberd/ejabberd.yaml";
  systemd.services.ejabberd.preStart = let
-    config-in = pkgs.writeText "ejabberd.yaml.in" (lib.generators.toYAML {} {
-      hosts = [ "uninsane.org" ];
-      # none | emergency | alert | critical | error | warning | notice | info | debug
-      loglevel = "debug";
-      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";
+    config-in = pkgs.writeTextFile {
+      name = "ejabberd.yaml.in";
+      text = ''
+        hosts:
+          - uninsane.org

-      pam_userinfotype = "jid";
-      acl = {
-        admin.user = [ "colin@uninsane.org" ];
-        local.user_regexp = "";
-        loopback.ip = [ "127.0.0.0/8" "::1/128" ];
-      };
+        # none | emergency | alert | critical | error | warning | notice | info | debug
+        loglevel: debug
+        # loglevel: info
+        # loglevel: notice

-      access_rules = {
-        local.allow = "local";
-        c2s_access.allow = "all";
-        announce.allow = "admin";
-        configure.allow = "admin";
-        muc_create.allow = "local";
-        pubsub_createnode_access.allow = "all";
-        trusted_network.allow = "loopback";
-      };
+        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

-      # 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";
-      };
+        pam_userinfotype: jid

-      # docs: <https://docs.ejabberd.im/admin/configuration/basic/#shapers>
-      # this limits the bytes/sec.
-      # for example, burst: 3_000_000 and rate: 100_000 means:
-      # - each client has a BW budget that accumulates 100kB/sec and is capped at 3 MB
-      shaper.fast = 1000000;
-      shaper.med  =  500000;
-      # shaper.fast.rate       =  1000000;
-      # shaper.fast.burst_size = 10000000;
-      # shaper.med.rate        =   500000;
-      # shaper.med.burst_size  =  5000000;
+        acl:
+          admin:
+            user:
+              - "colin@uninsane.org"
+          local:
+            user_regexp: ""
+          loopback:
+            ip:
+              - 127.0.0.0/8
+              - ::1/128

-      # see: <https://docs.ejabberd.im/admin/configuration/listen/>
-      # s2s_use_starttls = true;
-      s2s_use_starttls = "optional";
-      # lessens 504: remote-server-timeout errors
-      # see: <https://github.com/processone/ejabberd/issues/3105#issuecomment-562182967>
-      negotiation_timeout = 60;
+        access_rules:
+          local:
+            allow: local
+          c2s_access:
+            allow: all
+          announce:
+            allow: admin
+          configure:
+            allow: admin
+          muc_create:
+            allow: local
+          pubsub_createnode_access:
+            allow: all
+          trusted_network:
+            allow: loopback

-      listen = [
-        {
-          port = 5222;
-          module = "ejabberd_c2s";
-          shaper = "c2s_shaper";
-          starttls = true;
-          access = "c2s_access";
-        }
-        {
-          port = 5223;
-          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/#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

-      # TODO: enable mod_fail2ban
-      # TODO(low): look into mod_http_fileserver for serving macros?
-      modules = {
-        # mod_adhoc = {};
-        # mod_announce = {
-        #   access = "admin";
-        # };
-        # allows users to set avatars in vCard
-        # - <https://docs.ejabberd.im/admin/configuration/modules/#mod-avatar>
-        mod_avatar = {};
-        mod_caps = {};  # for mod_pubsub
-        mod_carboncopy = {};  # allows multiple clients to receive a user's message
-        # queues messages when recipient is offline, including PEP and presence messages.
-        # compliance test suggests this be enabled
-        mod_client_state = {};
+        # docs: <https://docs.ejabberd.im/admin/configuration/basic/#shapers>
+        # this limits the bytes/sec.
+        # for example, burst: 3_000_000 and rate: 100_000 means:
+        # - each client has a BW budget that accumulates 100kB/sec and is capped at 3 MB
+        shaper:
+          fast: 1000000
+          med:   500000
+        #   fast:
+        #     - rate:        1000000
+        #     - burst_size: 10000000
+        #   med:
+        #     - rate:         500000
+        #     - burst_size:  5000000

-        # mod_conversejs: TODO: enable once on 21.12
-        # allows clients like Dino to discover where to upload files
-        mod_disco.server_info = [
-          {
-            modules = "all";
-            name = "abuse-addresses";
-            urls = [
-              "mailto:admin.xmpp@uninsane.org"
-              "xmpp:colin@uninsane.org"
-            ];
-          }
-          {
-            modules = "all";
-            name = "admin-addresses";
-            urls = [
-              "mailto:admin.xmpp@uninsane.org"
-              "xmpp:colin@uninsane.org"
-            ];
-          }
-        ];
-        mod_http_upload = {
-          host = "upload.xmpp.uninsane.org";
-          hosts = [ "upload.xmpp.uninsane.org" ];
-          put_url = "https://@HOST@:5443/upload";
-          dir_mode = "0750";
-          file_mode = "0750";
-          rm_on_unregister = false;
-        };
-        # allow discoverability of BOSH and websocket endpoints
-        # TODO: enable once on ejabberd 22.05  (presently 21.04)
-        # mod_host_meta = {};
-        mod_jidprep = {};  # probably not needed: lets clients normalize jids
-        mod_last = {};  # allow other users to know when i was last online
-        mod_mam = {
-          # Mnesia is limited to 2GB, better to use an SQL backend
-          # For small servers SQLite is a good fit and is very easy
-          # to configure. Uncomment this when you have SQL configured:
-          # db_type: sql
-          assume_mam_usage = true;
-          default = "always";
-        };
-        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 undelivered messages if the origin client is offline
-          resend_on_timeout = "if_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 = {};
-      };
-    });
+        # see: <https://docs.ejabberd.im/admin/configuration/listen/>
+        # s2s_use_starttls: true
+        s2s_use_starttls: optional
+        # lessens 504: remote-server-timeout errors
+        # see: <https://github.com/processone/ejabberd/issues/3105#issuecomment-562182967>
+        negotiation_timeout: 60
+
+        listen:
+          -
+            port: 5222
+            module: ejabberd_c2s
+            shaper: c2s_shaper
+            starttls: true
+            access: c2s_access
+          -
+            port: 5223
+            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: 49152
+            turn_max_port: 65535
+            turn_ipv4_address: %ANATIVE%
+          -
+            # STUN+TURN UDP
+            port: 3478
+            module: ejabberd_stun
+            transport: udp
+            use_turn: true
+            turn_min_port: 49152
+            turn_max_port: 65535
+            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: 49152
+            turn_max_port: 65535
+            turn_ipv4_address: %ANATIVE%
+
+        # TODO: enable mod_fail2ban
+        # TODO(low): look into mod_http_fileserver for serving macros?
+        modules:
+          # mod_adhoc: {}
+          # mod_announce:
+          #   access: admin
+          # allows users to set avatars in vCard
+          # - <https://docs.ejabberd.im/admin/configuration/modules/#mod-avatar>
+          mod_avatar: {}
+          mod_caps: {}  # for mod_pubsub
+          mod_carboncopy: {}  # allows multiple clients to receive a user's message
+          # queues messages when recipient is offline, including PEP and presence messages.
+          # compliance test suggests this be enabled
+          mod_client_state: {}
+          # mod_conversejs: TODO: enable once on 21.12
+          # allows clients like Dino to discover where to upload files
+          mod_disco:
+            server_info:
+              -
+                modules: all
+                name: abuse-addresses
+                urls:
+                  - "mailto:admin.xmpp@uninsane.org"
+                  - "xmpp:colin@uninsane.org"
+              -
+                modules: all
+                name: admin-addresses
+                urls:
+                  - "mailto:admin.xmpp@uninsane.org"
+                  - "xmpp:colin@uninsane.org"
+          mod_http_upload:
+            host: upload.xmpp.uninsane.org
+            hosts:
+              - upload.xmpp.uninsane.org
+            put_url: "https://@HOST@:5443/upload"
+            dir_mode: "0750"
+            file_mode: "0750"
+            rm_on_unregister: false
+          # allow discoverability of BOSH and websocket endpoints
+          # TODO: enable once on ejabberd 22.05  (presently 21.04)
+          # mod_host_meta: {}
+          mod_jidprep: {}  # probably not needed: lets clients normalize jids
+          mod_last: {}  # allow other users to know when i was last online
+          mod_mam:
+            # Mnesia is limited to 2GB, better to use an SQL backend
+            # For small servers SQLite is a good fit and is very easy
+            # to configure. Uncomment this when you have SQL configured:
+            # db_type: sql
+            assume_mam_usage: true
+            default: always
+          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/g" ${config-in} > /var/lib/ejabberd/ejabberd.yaml.new
+    ${sed} "s/%ANATIVE%/$ip/" ${config-in} > /var/lib/ejabberd/ejabberd.yaml.new
    mv /var/lib/ejabberd/ejabberd.yaml{.new,}
  '';

--- a/hosts/by-name/servo/services/email/default.nix
+++ b/hosts/by-name/servo/services/email/default.nix
@@ -22,13 +22,6 @@
 #     - but postfix delegates authorization of that outgoing mail to dovecot, on the server side
 #
 # - local clients (i.e. sendmail) interact only with postfix
-#
-# debugging: general connectivity issues
-# - test that inbound port 25 is unblocked:
-#   - `curl https://canyouseeme.org/ --data 'port=25&IP=185.157.162.178' | grep 'see your service'`
-#     - and retry with port 465, 587
-#     - i think this API requires the queried IP match the source IP
-#   - if necessary, `systemctl stop postfix` and `sudo nc -l 185.157.162.178 25`, then try https://canyouseeme.org

 { ... }:
 {
--- a/hosts/by-name/servo/services/email/postfix.nix
+++ b/hosts/by-name/servo/services/email/postfix.nix
@@ -18,7 +18,7 @@ let
  };
 in
 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    # TODO: mode? could be more granular
    { user = "opendkim"; group = "opendkim"; path = "/var/lib/opendkim"; }
    { user = "root"; group = "root"; path = "/var/lib/postfix"; }
@@ -28,25 +28,21 @@ in
    # "/var/lib/dovecot"
  ];

-  # XXX(2023/10/20): opening these ports in the firewall has the OPPOSITE effect as intended.
-  # these ports are only routable so long as they AREN'T opened.
-  # probably some cursed interaction with network namespaces introduced after 2023/10/10.
-  # sane.ports.ports."25" = {
-  #   protocol = [ "tcp" ];
-  #   # XXX visibleTo.lan effectively means "open firewall, but don't configure any NAT/forwarding"
-  #   visibleTo.lan = true;
-  #   description = "colin-smtp-mx.uninsane.org";
-  # };
-  # sane.ports.ports."465" = {
-  #   protocol = [ "tcp" ];
-  #   visibleTo.lan = true;
-  #   description = "colin-smtps-mx.uninsane.org";
-  # };
-  # sane.ports.ports."587" = {
-  #   protocol = [ "tcp" ];
-  #   visibleTo.lan = true;
-  #   description = "colin-smtps-submission-mx.uninsane.org";
-  # };
+  sane.ports.ports."25" = {
+    protocol = [ "tcp" ];
+    visibleTo.ovpn = true;
+    description = "colin-smtp-mx.uninsane.org";
+  };
+  sane.ports.ports."465" = {
+    protocol = [ "tcp" ];
+    visibleTo.ovpn = true;
+    description = "colin-smtps-mx.uninsane.org";
+  };
+  sane.ports.ports."587" = {
+    protocol = [ "tcp" ];
+    visibleTo.ovpn = true;
+    description = "colin-smtps-submission-mx.uninsane.org";
+  };

  # exists only to manage certs for Postfix
  services.nginx.virtualHosts."mx.uninsane.org" = {
--- a/hosts/by-name/servo/services/export/default.nix
+++ b/hosts/by-name/servo/services/export/default.nix
@@ -1,53 +0,0 @@
-{ 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.byStore.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
-    '';
-  };
-}
--- a/hosts/by-name/servo/services/export/nfs.nix
+++ b/hosts/by-name/servo/services/export/nfs.nix
@@ -1,110 +0,0 @@
-# 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;
-  };
-}
--- a/hosts/by-name/servo/services/export/sftpgo.nix
+++ b/hosts/by-name/servo/services/export/sftpgo.nix
@@ -1,184 +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>
-# - 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" ];
-    after = [ "network-online.target" ];
-    wants = [ "network-online.target" ];
-
-    Restart = "always";
-    RestartSec = "20s";
-  };
-}
--- a/hosts/by-name/servo/services/export/sftpgo_external_auth_hook
+++ b/hosts/by-name/servo/services/export/sftpgo_external_auth_hook
@@ -1,23 +0,0 @@
-#!/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
--- a/hosts/by-name/servo/services/freshrss.nix
+++ b/hosts/by-name/servo/services/freshrss.nix
@@ -15,7 +15,7 @@
    owner = config.users.users.freshrss.name;
    mode = "0400";
  };
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    { user = "freshrss"; group = "freshrss"; path = "/var/lib/freshrss"; }
  ];

--- a/hosts/by-name/servo/services/ftp/default.nix
+++ b/hosts/by-name/servo/services/ftp/default.nix
@@ -0,0 +1,70 @@
+# 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 = "${authProgram}/bin/sftpgo_external_auth_hook";
+      };
+    };
+  };
+}
--- a/hosts/by-name/servo/services/ftp/sftpgo_external_auth_hook
+++ b/hosts/by-name/servo/services/ftp/sftpgo_external_auth_hook
@@ -0,0 +1,55 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash
+# vim: set filetype=bash :
+#
+# available environment variables:
+# - SFTPGO_AUTHD_USERNAME
+# - SFTPGO_AUTHD_USER
+# - SFTPGO_AUTHD_IP
+# - SFTPGO_AUTHD_PROTOCOL  = { "DAV", "FTP", "HTTP", "SSH" }
+# - SFTPGO_AUTHD_PASSWORD
+# - SFTPGO_AUTHD_PUBLIC_KEY
+# - SFTPGO_AUTHD_KEYBOARD_INTERACTIVE
+# - SFTPGO_AUTHD_TLS_CERT
+#
+# user permissions:
+# - see <repo:drakkan/sftpgo:internal/dataprovider/user.go>
+# - "*" = grant all permissions
+# - read-only perms:
+#   - "list" = list files and directories
+#   - "download"
+# - rw perms:
+#   - "upload"
+#   - "overwrite" = allow uploads to replace existing files
+#   - "delete" = delete files and directories
+#     - "delete_files"
+#     - "delete_dirs"
+#   - "rename" = rename files and directories
+#     - "rename_files"
+#     - "rename_dirs"
+#   - "create_dirs"
+#   - "create_symlinks"
+#   - "chmod"
+#   - "chown"
+#   - "chtimes" = change atime/mtime (access and modification times)
+#
+# home_dir:
+# - it seems (empirically) that a user can't cd above their home directory.
+#   though i don't have a reference for that in the docs.
+# TODO: don't reuse /var/nfs/export here. formalize this some other way.
+
+
+if [ "$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
--- a/hosts/by-name/servo/services/gitea.nix
+++ b/hosts/by-name/servo/services/gitea.nix
@@ -2,7 +2,7 @@
 { config, pkgs, lib, ... }:

 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    # TODO: mode? could be more granular
    { user = "git"; group = "gitea"; path = "/var/lib/gitea"; }
  ];
@@ -13,10 +13,6 @@
  services.gitea.appName = "Perfectly Sane Git";
  # services.gitea.disableRegistration = true;

-  services.gitea.database.createDatabase = false;  #< silence warning which wants db user and name to be equal
-  # TODO: remove this after merge: <https://github.com/NixOS/nixpkgs/pull/268849>
-  services.gitea.database.socket = "/run/postgresql";  #< would have been set if createDatabase = true
-
  # gitea doesn't create the git user
  users.users.git = {
    description = "Gitea Service";
--- a/hosts/by-name/servo/services/ipfs.nix
+++ b/hosts/by-name/servo/services/ipfs.nix
@@ -10,7 +10,7 @@

 lib.mkIf false # i don't actively use ipfs anymore
 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    # TODO: mode? could be more granular
    { user = "261"; group = "261"; path = "/var/lib/ipfs"; }
  ];
--- a/hosts/by-name/servo/services/jackett.nix
+++ b/hosts/by-name/servo/services/jackett.nix
@@ -1,7 +1,7 @@
 { ... }:

 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    # TODO: mode? we only need this to save Indexer creds ==> migrate to config?
    { user = "root"; group = "root"; path = "/var/lib/jackett"; }
  ];
--- a/hosts/by-name/servo/services/jellyfin.nix
+++ b/hosts/by-name/servo/services/jellyfin.nix
@@ -40,7 +40,7 @@
    description = "colin-jellyfin-https-lan";
  };

-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    { user = "jellyfin"; group = "jellyfin"; mode = "0700"; path = "/var/lib/jellyfin"; }
  ];
  sane.fs."/var/lib/jellyfin/config/logging.json" = {
--- a/hosts/by-name/servo/services/komga.nix
+++ b/hosts/by-name/servo/services/komga.nix
@@ -4,7 +4,7 @@ let
  inherit (svc-cfg) user group port stateDir;
 in
 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    { inherit user group; mode = "0700"; path = stateDir; }
  ];

--- a/hosts/by-name/servo/services/lemmy.nix
+++ b/hosts/by-name/servo/services/lemmy.nix
@@ -3,23 +3,13 @@
 # - <repo:LemmyNet/lemmy:docker/nginx.conf>
 # - <repo:LemmyNet/lemmy-ansible:templates/nginx.conf>

-{ config, lib, pkgs, ... }:
+{ config, lib, ... }:
 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?
-  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 {'
-    '';
-  });
+  # - i guess the "backend" port is used for federation?
 in {
  services.lemmy = {
    enable = true;
@@ -66,20 +56,4 @@ 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
-  ]);
 }
--- a/hosts/by-name/servo/services/matrix/default.nix
+++ b/hosts/by-name/servo/services/matrix/default.nix
@@ -1,16 +1,6 @@
 # docs: <https://nixos.wiki/wiki/Matrix>
 # docs: <https://nixos.org/manual/nixos/stable/index.html#module-services-matrix-synapse>
 # example config: <https://github.com/matrix-org/synapse/blob/develop/docs/sample_config.yaml>
-#
-# ENABLING PUSH NOTIFICATIONS (with UnifiedPush/ntfy):
-# - Matrix "pushers" API spec: <https://spec.matrix.org/latest/client-server-api/#post_matrixclientv3pushersset>
-# - first, view notification settings:
-#   - obtain your client's auth token. e.g. Element -> profile -> help/about -> access token.
-#   - `curl --header 'Authorization: Bearer <your_access_token>' localhost:8008/_matrix/client/v3/pushers | jq .`
-# - enable a new notification destination:
-#   - `curl --header "Authorization: Bearer <your_access_token>" --data '{ "app_display_name": "<topic>", "app_id": "ntfy.uninsane.org", "data": { "url": "https://ntfy.uninsane.org/_matrix/push/v1/notify", "format": "event_id_only" }, "device_display_name": "<topic>", "kind": "http", "lang": "en-US", "profile_tag": "", "pushkey": "<topic>" }' localhost:8008/_matrix/client/v3/pushers/set`
-# - delete a notification destination by setting `kind` to `null` (otherwise, request is identical to above)
-#
 { config, lib, pkgs, ... }:

 {
@@ -20,73 +10,67 @@
    ./signal.nix
  ];

-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    { user = "matrix-synapse"; group = "matrix-synapse"; path = "/var/lib/matrix-synapse"; }
  ];
  services.matrix-synapse.enable = true;
-  services.matrix-synapse.settings = {
-    # this changes the default log level from INFO to WARN.
-    # maybe there's an easier way?
-    log_config = ./synapse-log_level.yaml;
-    server_name = "uninsane.org";
+  # this changes the default log level from INFO to WARN.
+  # maybe there's an easier way?
+  services.matrix-synapse.settings.log_config = ./synapse-log_level.yaml;
+  services.matrix-synapse.settings.server_name = "uninsane.org";

-    # services.matrix-synapse.enable_registration_captcha = true;
-    # services.matrix-synapse.enable_registration_without_verification = true;
-    enable_registration = true;
-    # services.matrix-synapse.registration_shared_secret = "<shared key goes here>";
+  # services.matrix-synapse.enable_registration_captcha = true;
+  # services.matrix-synapse.enable_registration_without_verification = true;
+  services.matrix-synapse.settings.enable_registration = true;
+  # services.matrix-synapse.registration_shared_secret = "<shared key goes here>";

-    # default for listeners is port = 8448, tls = true, x_forwarded = false.
-    # we change this because the server is situated behind nginx.
-    listeners = [
-      {
-        port = 8008;
-        bind_addresses = [ "127.0.0.1" ];
-        type = "http";
-        tls = false;
-        x_forwarded = true;
-        resources = [
-          {
-            names = [ "client" "federation" ];
-            compress = false;
-          }
-        ];
-      }
-    ];
+  # default for listeners is port = 8448, tls = true, x_forwarded = false.
+  # we change this because the server is situated behind nginx.
+  services.matrix-synapse.settings.listeners = [
+    {
+      port = 8008;
+      bind_addresses = [ "127.0.0.1" ];
+      type = "http";
+      tls = false;
+      x_forwarded = true;
+      resources = [
+        {
+          names = [ "client" "federation" ];
+          compress = false;
+        }
+      ];
+    }
+  ];

-    ip_range_whitelist = [
-      # 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.x_forwarded = true;  # because we proxy matrix behind nginx
+  services.matrix-synapse.settings.max_upload_size = "100M";  # default is "50M"

-    x_forwarded = true;  # because we proxy matrix behind nginx
-    max_upload_size = "100M";  # default is "50M"
-
-    admin_contact = "admin.matrix@uninsane.org";
-    registrations_require_3pid = [ "email" ];
-  };
+  services.matrix-synapse.settings.admin_contact = "admin.matrix@uninsane.org";
+  services.matrix-synapse.settings.registrations_require_3pid = [ "email" ];

  services.matrix-synapse.extraConfigFiles = [
    config.sops.secrets."matrix_synapse_secrets.yaml".path
  ];

-  systemd.services.matrix-synapse.postStart = ''
-    ACCESS_TOKEN=$(${pkgs.coreutils}/bin/cat ${config.sops.secrets.matrix_access_token.path})
-    TOPIC=$(${pkgs.coreutils}/bin/cat ${config.sops.secrets.ntfy-sh-topic.path})
-
-    echo "ensuring ntfy push gateway"
-    ${pkgs.curl}/bin/curl \
-      --header "Authorization: Bearer $ACCESS_TOKEN" \
-      --data "{ \"app_display_name\": \"ntfy-adapter\", \"app_id\": \"ntfy.uninsane.org\", \"data\": { \"url\": \"https://ntfy.uninsane.org/_matrix/push/v1/notify\", \"format\": \"event_id_only\" }, \"device_display_name\": \"ntfy-adapter\", \"kind\": \"http\", \"lang\": \"en-US\", \"profile_tag\": \"\", \"pushkey\": \"$TOPIC\" }" \
-      localhost:8008/_matrix/client/v3/pushers/set
-
-    echo "registered push gateways:"
-    ${pkgs.curl}/bin/curl \
-      --header "Authorization: Bearer $ACCESS_TOKEN" \
-      localhost:8008/_matrix/client/v3/pushers \
-      | ${pkgs.jq}/bin/jq .
-  '';
-
+  # services.matrix-synapse.extraConfigFiles = [builtins.toFile "matrix-synapse-extra-config" ''
+  #   admin_contact: "admin.matrix@uninsane.org"
+  #   registrations_require_3pid:
+  #     - email
+  #   email:
+  #     smtp_host: "mx.uninsane.org"
+  #     smtp_port: 587
+  #     smtp_user: "matrix-synapse"
+  #     smtp_pass: "${secrets.matrix-synapse.smtp_pass}"
+  #     require_transport_security: true
+  #     enable_tls: true
+  #     notif_from: "%(app)s <notify.matrix@uninsane.org>"
+  #     app_name: "Uninsane Matrix"
+  #     enable_notifs: true
+  #     validation_token_lifetime: 96h
+  #     invite_client_location: "https://web.matrix.uninsane.org"
+  #     subjects:
+  #       email_validation: "[%(server_name)s] Validate your email"
+  # ''];

  # new users may be registered on the CLI:
  #   register_new_matrix_user -c /nix/store/8n6kcka37jhmi4qpd2r03aj71pkyh21s-homeserver.yaml http://localhost:8008
@@ -157,9 +141,4 @@
  sops.secrets."matrix_synapse_secrets.yaml" = {
    owner = config.users.users.matrix-synapse.name;
  };
-  sops.secrets."matrix_access_token" = {
-    owner = config.users.users.matrix-synapse.name;
-  };
-  # provide access to ntfy-sh-topic secret
-  users.users.matrix-synapse.extraGroups = [ "ntfy-sh" ];
 }
--- a/hosts/by-name/servo/services/matrix/discord-puppet.nix
+++ b/hosts/by-name/servo/services/matrix/discord-puppet.nix
@@ -5,7 +5,7 @@
 # - recommended to use mautrix-discord: <https://github.com/NixOS/nixpkgs/pull/200462>
 lib.mkIf false
 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    { user = "matrix-synapse"; group = "matrix-synapse"; path = "/var/lib/mx-puppet-discord"; }
  ];

--- a/hosts/by-name/servo/services/matrix/irc.nix
+++ b/hosts/by-name/servo/services/matrix/irc.nix
@@ -101,7 +101,7 @@ in
    })
  ];

-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    # TODO: mode?
    { user = "matrix-appservice-irc"; group = "matrix-appservice-irc"; path = "/var/lib/matrix-appservice-irc"; }
  ];
@@ -141,7 +141,6 @@ in
          sasl = false;
          # notable channels:
          # - #hare
-          # - #mnt-reform
        };
        "irc.myanonamouse.net" = ircServer {
          name = "MyAnonamouse";
--- a/hosts/by-name/servo/services/matrix/signal.nix
+++ b/hosts/by-name/servo/services/matrix/signal.nix
@@ -2,7 +2,7 @@
 # - <https://github.com/mautrix/signal/blob/master/mautrix_signal/example-config.yaml>
 { config, pkgs, ... }:
 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    { user = "mautrix-signal"; group = "mautrix-signal"; path = "/var/lib/mautrix-signal"; }
    { user = "signald"; group = "signald"; path = "/var/lib/signald"; }
  ];
--- a/hosts/by-name/servo/services/monero.nix
+++ b/hosts/by-name/servo/services/monero.nix
@@ -1,37 +0,0 @@
-# as of 2023/11/26: complete downloaded blockchain should be 200GiB on disk, give or take.
-{ ... }:
-{
-  sane.persist.sys.byStore.ext = [
-    # /var/lib/monero/lmdb is what consumes most of the space
-    { user = "monero"; group = "monero"; path = "/var/lib/monero"; }
-  ];
-
-  services.monero.enable = true;
-  services.monero.limits.upload = 5000;  # in kB/s
-  services.monero.extraConfig = ''
-    # see: monero doc/ANONYMITY_NETWORKS.md
-    #
-    # "If any anonymity network is enabled, transactions being broadcast that lack a valid 'context'
-    # (i.e. the transaction did not come from a P2P connection) will only be sent to peers on anonymity networks."
-    #
-    # i think this means that setting tx-proxy here ensures any transactions sent locally to my node (via RPC)
-    # will be sent over an anonymity network.
-    tx-proxy=i2p,127.0.0.1:9000
-    tx-proxy=tor,127.0.0.1:9050
-  '';
-
-  services.i2p.enable = true;
-  # tor: `tor.enable` doesn't start a relay, exit node, proxy, etc. it's minimal.
-  # tor.client.enable configures a torsocks proxy, accessible *only* to localhost.
-  services.tor.enable = true;
-  services.tor.client.enable = true;
-
-  # monero ports: <https://monero.stackexchange.com/questions/604/what-ports-does-monero-use-rpc-p2p-etc>
-  # - 18080 = "P2P" monero node <-> monero node connections
-  # - 18081 = "RPC" monero client -> monero node connections
-  sane.ports.ports."18080" = {
-    protocol = [ "tcp" ];
-    visibleTo.wan = true;
-    description = "colin-monero-p2p";
-  };
-}
--- a/hosts/by-name/servo/services/navidrome.nix
+++ b/hosts/by-name/servo/services/navidrome.nix
@@ -1,7 +1,7 @@
 { lib, ... }:

 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    { user = "navidrome"; group = "navidrome"; path = "/var/lib/navidrome"; }
  ];
  services.navidrome.enable = true;
--- a/hosts/by-name/servo/services/nfs.nix
+++ b/hosts/by-name/servo/services/nfs.nix
@@ -0,0 +1,67 @@
+# 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" ];
+  };
+}
--- a/hosts/by-name/servo/services/nginx.nix
+++ b/hosts/by-name/servo/services/nginx.nix
@@ -1,5 +1,4 @@
-# docs: <https://nixos.wiki/wiki/Nginx>
-# docs: <https://nginx.org/en/docs/>
+# docs: https://nixos.wiki/wiki/Nginx
 { config, lib, pkgs, ... }:

 let
@@ -134,7 +133,7 @@ in
  security.acme.acceptTerms = true;
  security.acme.defaults.email = "admin.acme@uninsane.org";

-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    # TODO: mode?
    { user = "acme"; group = "acme"; path = "/var/lib/acme"; }
    { user = "colin"; group = "users"; path = "/var/www/sites"; }
--- a/hosts/by-name/servo/services/ntfy/default.nix
+++ b/hosts/by-name/servo/services/ntfy/default.nix
@@ -1,14 +0,0 @@
-# ntfy: UnifiedPush notification delivery system
-# - used to get push notifications out of Matrix and onto a Phone (iOS, Android, or a custom client)
-{ config, ... }:
-{
-  imports = [
-    ./ntfy-waiter.nix
-    ./ntfy-sh.nix
-  ];
-  sops.secrets."ntfy-sh-topic" = {
-    mode = "0440";
-    owner = config.users.users.ntfy-sh.name;
-    group = config.users.users.ntfy-sh.name;
-  };
-}
--- a/hosts/by-name/servo/services/ntfy/ntfy-sh.nix
+++ b/hosts/by-name/servo/services/ntfy/ntfy-sh.nix
@@ -1,92 +0,0 @@
-# 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.byStore.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
-  '';
-
-
-  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";
-  };
-}
--- a/hosts/by-name/servo/services/ntfy/ntfy-waiter
+++ b/hosts/by-name/servo/services/ntfy/ntfy-waiter
@@ -1,151 +0,0 @@
-#!/usr/bin/env nix-shell
-#!nix-shell -i python3 -p "python3.withPackages (ps: [  ])" -p ntfy-sh
-
-import argparse
-import logging
-import os
-import socket
-import subprocess
-import sys
-import threading
-import time
-
-logger = logging.getLogger(__name__)
-
-LISTEN_QUEUE = 3
-WAKE_MESSAGE = b'notification\n'
-
-class Client:
-    def __init__(self, sock, addr_info, live_after: float):
-        self.live_after = live_after
-        self.sock = sock
-        self.addr_info = addr_info
-
-    def __cmp__(self, other: 'Client'):
-        return cmp(self.addr_info, other.addr_info)
-
-    def try_notify(self, message: bytes) -> bool:
-        """
-        returns true if we send a packet to notify client.
-        fals otherwise (e.g. the socket is dead).
-        """
-        ttl = self.live_after - time.time()
-        if ttl > 0:
-            logger.debug(f"sleeping {ttl:.2f}s until client {self.addr_info} is ready to receive notification")
-            time.sleep(ttl)
-
-        try:
-            self.sock.sendall(message)
-        except Exception as e:
-            logger.warning(f"failed to notify client {self.addr_info} {e}")
-            return False
-        else:
-            logger.info(f"successfully notified {self.addr_info}: {message}")
-            return True
-
-class Adapter:
-    def __init__(self, host: str, port: int, silence: int, topic: str):
-        self.host = host
-        self.port = port
-        self.silence = silence
-        self.topic = topic
-        self.clients = set()
-
-    def log_clients(self):
-        clients_str = '\n'.join(f'  {c.addr_info}' for c in self.clients)
-        logger.debug(f"clients alive ({len(self.clients)}):\n{clients_str}")
-
-    def add_client(self, client: Client):
-        # it's a little bit risky to keep more than one client at the same IP address,
-        # because it's possible a notification comes in and we ring the old connection,
-        # even when the new connection says "don't ring yet".
-        for c in set(self.clients):
-            if c.addr_info[0] == client.addr_info[0]:
-                logger.info(f"purging old client before adding new one at same address: {c.addr_info} -> {client.addr_info}")
-                self.clients.remove(c)
-
-        logger.info(f"accepted client at {client.addr_info}")
-        self.clients.add(client)
-
-    def listener_loop(self):
-        logger.info(f"listening for connections on {self.host}:{self.port}")
-        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
-        s.bind((self.host, self.port))
-        s.listen(LISTEN_QUEUE)
-        while True:
-            conn, addr_info = s.accept()
-            self.add_client(Client(conn, addr_info, live_after = time.time() + self.silence))
-
-    def notify_clients(self, message: bytes = WAKE_MESSAGE):
-        # notify every client, and drop any which have disconnected.
-        # note that we notify based on age (oldest -> youngest)
-        # because notifying young clients might entail sleeping until they're ready.
-        clients = sorted(self.clients, key=lambda c: (c.live_after, c.addr_info))
-
-        dead_clients = [
-            c for c in clients if not c.try_notify(message)
-        ]
-        for c in dead_clients:
-            self.clients.remove(c)
-
-        self.log_clients()
-
-    def notify_loop(self):
-        logger.info("waiting for notification events")
-        ntfy_proc = subprocess.Popen(
-            [
-                "ntfy",
-                "sub",
-                f"https://ntfy.uninsane.org/{self.topic}"
-            ],
-            stdout=subprocess.PIPE
-        )
-        for line in iter(ntfy_proc.stdout.readline, b''):
-            logger.debug(f"received notification: {line}")
-            self.notify_clients()
-
-def get_topic() -> str:
-    return open('/run/secrets/ntfy-sh-topic', 'rt').read().strip()
-
-def run_forever(callable):
-    try:
-        callable()
-    except Exception as e:
-        logger.error(f"{callable} failed: {e}")
-    else:
-        logger.error(f"{callable} unexpectedly returned")
-    # sys.exit(1)
-    os._exit(1)  # sometimes `sys.exit()` doesn't actually exit...
-
-def main():
-    logging.basicConfig()
-    logging.getLogger().setLevel(logging.DEBUG)
-
-    parser = argparse.ArgumentParser(description="accept connections and notify the other end upon ntfy activity, with a guaranteed amount of silence")
-    parser.add_argument('--verbose', action='store_true')
-    parser.add_argument('--host', type=str, default='')
-    parser.add_argument('--port', type=int)
-    parser.add_argument('--silence', type=int, help="number of seconds to remain silent upon accepting a connection")
-
-    args = parser.parse_args()
-
-    if args.verbose:
-        logging.getLogger().setLevel(logging.DEBUG)
-    else:
-        logging.getLogger().setLevel(logging.INFO)
-
-    adapter = Adapter(args.host, args.port, args.silence, get_topic())
-
-    listener_loop = threading.Thread(target=run_forever, name="listener_loop", args=(adapter.listener_loop,))
-    notify_loop = threading.Thread(target=run_forever, name="notify_loop", args=(adapter.notify_loop,))
-
-    # TODO: this method of exiting seems to sometimes leave the listener behind (?)
-    # preventing anyone else from re-binding the port.
-    listener_loop.start()
-    notify_loop.start()
-    listener_loop.join()
-    notify_loop.join()
-
-
-if __name__ == '__main__':
-    main()
--- a/hosts/by-name/servo/services/ntfy/ntfy-waiter.nix
+++ b/hosts/by-name/servo/services/ntfy/ntfy-waiter.nix
@@ -1,72 +0,0 @@
-# service which adapts ntfy-sh into something suitable specifically for the Pinephone's
-# wake-on-lan (WoL) feature.
-# notably, it provides a mechanism by which the caller can be confident of an interval in which
-# zero traffic will occur on the TCP connection, thus allowing it to enter sleep w/o fear of hitting
-# race conditions in the Pinephone WoL feature.
-{ config, lib, pkgs, ... }:
-let
-  cfg = config.sane.ntfy-waiter;
-  portLow = 5550;
-  portHigh = 5559;
-  portRange = lib.range portLow portHigh;
-  numPorts = portHigh - portLow + 1;
-  mkService = port: let
-    silence = port - portLow;
-    flags = lib.optional cfg.verbose "--verbose";
-    cli = [
-      "${cfg.package}/bin/ntfy-waiter"
-      "--port"
-      "${builtins.toString port}"
-      "--silence"
-      "${builtins.toString silence}"
-    ] ++ flags;
-  in {
-    "ntfy-waiter-${builtins.toString silence}" = {
-      # TODO: run not as root (e.g. as ntfy-sh)
-      description = "wait for notification, with ${builtins.toString silence} seconds of guaranteed silence";
-      serviceConfig = {
-        Type = "simple";
-        Restart = "always";
-        RestartSec = "5s";
-        ExecStart = lib.concatStringsSep " " cli;
-      };
-      after = [ "network.target" ];
-      wantedBy = [ "default.target" ];
-    };
-  };
-in
-{
-  options = with lib; {
-    sane.ntfy-waiter.enable = mkOption {
-      type = types.bool;
-      default = true;
-    };
-    sane.ntfy-waiter.verbose = mkOption {
-      type = types.bool;
-      default = true;
-    };
-    sane.ntfy-waiter.package = mkOption {
-      type = types.package;
-      default = pkgs.static-nix-shell.mkPython3Bin {
-        pname = "ntfy-waiter";
-        src = ./.;
-        pkgs = [ "ntfy-sh" ];
-      };
-      description = ''
-        exposed to provide an attr-path by which one may build the package for manual testing.
-      '';
-    };
-  };
-
-  config = lib.mkIf cfg.enable {
-    sane.ports.ports = lib.mkMerge (lib.forEach portRange (port: {
-      "${builtins.toString port}" = {
-        protocol = [ "tcp" ];
-        visibleTo.lan = true;
-        visibleTo.wan = true;
-        description = "colin-notification-waiter-${builtins.toString (port+1)}-of-${builtins.toString numPorts}";
-      };
-    }));
-    systemd.services = lib.mkMerge (builtins.map mkService portRange);
-  };
-}
--- a/hosts/by-name/servo/services/pict-rs.nix
+++ b/hosts/by-name/servo/services/pict-rs.nix
@@ -5,7 +5,7 @@ let
  cfg = config.services.pict-rs;
 in
 {
-  sane.persist.sys.byStore.plaintext = lib.mkIf cfg.enable [
+  sane.persist.sys.plaintext = lib.mkIf cfg.enable [
    { user = "pict-rs"; group = "pict-rs"; path = cfg.dataDir; }
  ];

--- a/hosts/by-name/servo/services/pleroma.nix
+++ b/hosts/by-name/servo/services/pleroma.nix
@@ -14,7 +14,7 @@ let
  # logLevel = "debug";
 in
 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    { user = "pleroma"; group = "pleroma"; path = "/var/lib/pleroma"; }
  ];
  services.pleroma.enable = true;
@@ -63,7 +63,6 @@ in
      database: "pleroma",
      hostname: "localhost",
      pool_size: 10,
-      prepare: :named,
      parameters: [
          plan_cache_mode: "force_custom_plan"
      ]
--- a/hosts/by-name/servo/services/postgres.nix
+++ b/hosts/by-name/servo/services/postgres.nix
@@ -1,39 +1,12 @@
-{ pkgs, ... }:
+{ ... }:

-let
-  GiB = n: MiB 1024*n;
-  MiB = n: KiB 1024*n;
-  KiB = n: 1024*n;
-in
 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    # TODO: mode?
    { user = "postgres"; group = "postgres"; path = "/var/lib/postgresql"; }
  ];
  services.postgresql.enable = true;
-
-  # 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;
-
-
+  # services.postgresql.dataDir = "/opt/postgresql/13";
  # 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>';
@@ -44,33 +17,10 @@ in
  #     LC_CTYPE = "C";
  # '';

-  # perf tuning
+  # TODO: 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 = {
-    # 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;
-  };
+  # services.postgresql.settings = { ... }

  # daily backups to /var/backup
  services.postgresqlBackup.enable = true;
--- a/hosts/by-name/servo/services/prosody.nix
+++ b/hosts/by-name/servo/services/prosody.nix
@@ -0,0 +1,81 @@
+# example configs:
+# - <https://github.com/kittywitch/nixfiles/blob/main/services/prosody.nix>
+# create users with:
+# - `sudo -u prosody prosodyctl adduser colin@uninsane.org`
+
+{ lib, ... }:
+
+# XXX disabled: doesn't send messages to nixnet.social (only receives them).
+# nixnet runs ejabberd, so revisiting that.
+lib.mkIf false
+{
+  sane.persist.sys.plaintext = [
+    { user = "prosody"; group = "prosody"; path = "/var/lib/prosody"; }
+  ];
+  sane.ports.ports."5222" = {
+    protocol = [ "tcp" ];
+    visibleTo.lan = true;
+    visibleTo.wan = true;
+    description = "colin-xmpp-client-to-server";
+  };
+  sane.ports.ports."5269" = {
+    protocol = [ "tcp" ];
+    visibleTo.wan = true;
+    description = "colin-xmpp-server-to-server";
+  };
+  sane.ports.ports."5280" = {
+    protocol = [ "tcp" ];
+    visibleTo.lan = true;
+    visibleTo.wan = true;
+    description = "colin-xmpp-bosh";
+  };
+  sane.ports.ports."5281" = {
+    protocol = [ "tcp" ];
+    visibleTo.lan = true;
+    visibleTo.wan = true;
+    description = "colin-xmpp-prosody-https";  # necessary?
+  };
+
+  # provide access to certs
+  users.users.prosody.extraGroups = [ "nginx" ];
+
+  security.acme.certs."uninsane.org".extraDomainNames = [
+    "conference.xmpp.uninsane.org"
+    "upload.xmpp.uninsane.org"
+  ];
+
+  services.prosody = {
+    enable = true;
+    admins = [ "colin@uninsane.org" ];
+    # allowRegistration = false;
+    # extraConfig = ''
+    #   s2s_require_encryption = true
+    #   c2s_require_encryption = true
+    # '';
+
+    extraModules = [ "private" "vcard" "privacy" "compression" "component" "muc" "pep" "adhoc" "lastactivity" "admin_adhoc" "blocklist"];
+
+    ssl.cert = "/var/lib/acme/uninsane.org/fullchain.pem";
+    ssl.key = "/var/lib/acme/uninsane.org/key.pem";
+
+    muc = [
+      {
+        domain = "conference.xmpp.uninsane.org";
+      }
+    ];
+    uploadHttp.domain = "upload.xmpp.uninsane.org";
+
+    virtualHosts = {
+      localhost = {
+        domain = "localhost";
+        enabled = true;
+      };
+      "xmpp.uninsane.org" = {
+        domain = "uninsane.org";
+        enabled = true;
+        ssl.cert = "/var/lib/acme/uninsane.org/fullchain.pem";
+        ssl.key = "/var/lib/acme/uninsane.org/key.pem";
+      }; 
+    };
+  };
+}
--- a/hosts/by-name/servo/services/prosody/default.nix
+++ b/hosts/by-name/servo/services/prosody/default.nix
@@ -1,289 +0,0 @@
-# example configs:
-# - official: <https://prosody.im/doc/example_config>
-# - nixos: <https://github.com/kittywitch/nixfiles/blob/main/services/prosody.nix>
-# config options:
-# - <https://prosody.im/doc/configure>
-#
-# modules:
-# - main: <https://prosody.im/doc/modules>
-# - community: <https://modules.prosody.im/index.html>
-#
-# debugging:
-# - logging:
-#   - enable `stanza_debug` module
-#   - enable `log.debug = "*syslog"` in extraConfig
-# - interactive:
-#   - `telnet localhost 5582` (this is equal to `prosodyctl shell` -- but doesn't hang)
-#     - `watch:stanzas(target_spec, filter)` -> to log stanzas, for version > 0.12
-#   - console docs: <https://prosody.im/doc/console>
-#   - can modify/inspect arbitrary internals (lua) by prefixing line with `> `
-#     - e.g. `> _G` to print all globals
-#
-# sanity checks:
-# - `sudo -u prosody -g prosody prosodyctl check connectivity`
-# - `sudo -u prosody -g prosody prosodyctl check turn`
-# - `sudo -u prosody -g prosody prosodyctl check turn -v --ping=stun.conversations.im`
-#   - checks that my stun/turn server is usable by clients of conversations.im (?)
-# - `sudo -u prosody -g prosody prosodyctl check`  (dns, config, certs)
-#
-#
-# create users with:
-# - `sudo -u prosody prosodyctl adduser colin@uninsane.org`
-#
-#
-# federation/support matrix:
-# - nixnet.services (runs ejabberd):
-#   - WORKS: sending and receiving PMs and calls (2023/10/15)
-#     - N.B.: it didn't originally work; was solved by disabling the lua-unbound DNS option & forcing the system/local resolver
-# - cheogram (XMPP <-> SMS gateway):
-#   - WORKS: sending and receiving PMs, images (2023/10/15)
-#   - PARTIAL: calls (xmpp -> tel works; tel -> xmpp fails)
-#     - maybe i need to setup stun/turn
-#
-# TODO:
-# - enable push notifications (mod_cloud_notify)
-# - optimize coturn (e.g. move off of the VPN!)
-# - ensure muc is working
-# - enable file uploads
-#   - "upload.xmpp.uninsane.org:http_upload: URL: <https://upload.xmpp.uninsane.org:5281/upload> - Ensure this can be reached by users"
-# - disable or fix bosh (jabber over http):
-#   - "certmanager: No certificate/key found for client_https port 0"
-
-{ lib, pkgs, ... }:
-
-let
-  # enables very verbose logging
-  enableDebug = false;
-in
-{
-  sane.persist.sys.byStore.plaintext = [
-    { user = "prosody"; group = "prosody"; path = "/var/lib/prosody"; }
-  ];
-  sane.ports.ports."5000" = {
-    protocol = [ "tcp" ];
-    visibleTo.lan = true;
-    visibleTo.wan = true;
-    description = "colin-xmpp-prosody-fileshare-proxy65";
-  };
-  sane.ports.ports."5222" = {
-    protocol = [ "tcp" ];
-    visibleTo.lan = true;
-    visibleTo.wan = true;
-    description = "colin-xmpp-client-to-server";
-  };
-  sane.ports.ports."5223" = {
-    protocol = [ "tcp" ];
-    visibleTo.lan = true;
-    visibleTo.wan = true;
-    description = "colin-xmpps-client-to-server";  # XMPP over TLS
-  };
-  sane.ports.ports."5269" = {
-    protocol = [ "tcp" ];
-    visibleTo.wan = true;
-    description = "colin-xmpp-server-to-server";
-  };
-  sane.ports.ports."5270" = {
-    protocol = [ "tcp" ];
-    visibleTo.wan = true;
-    description = "colin-xmpps-server-to-server";  # XMPP over TLS
-  };
-  sane.ports.ports."5280" = {
-    protocol = [ "tcp" ];
-    visibleTo.lan = true;
-    visibleTo.wan = true;
-    description = "colin-xmpp-bosh";
-  };
-  sane.ports.ports."5281" = {
-    protocol = [ "tcp" ];
-    visibleTo.lan = true;
-    visibleTo.wan = true;
-    description = "colin-xmpp-prosody-https";  # necessary?
-  };
-
-  users.users.prosody.extraGroups = [
-    "nginx"  # provide access to certs
-    "ntfy-sh"  # access to secret ntfy topic
-  ];
-
-  security.acme.certs."uninsane.org".extraDomainNames = [
-    "xmpp.uninsane.org"
-    "conference.xmpp.uninsane.org"
-    "upload.xmpp.uninsane.org"
-  ];
-
-  # exists so the XMPP server's cert can obtain altNames for all its resources
-  services.nginx.virtualHosts."xmpp.uninsane.org" = {
-    useACMEHost = "uninsane.org";
-  };
-  services.nginx.virtualHosts."conference.xmpp.uninsane.org" = {
-    useACMEHost = "uninsane.org";
-  };
-  services.nginx.virtualHosts."upload.xmpp.uninsane.org" = {
-    useACMEHost = "uninsane.org";
-  };
-
-  sane.dns.zones."uninsane.org".inet = {
-    # XXX: SRV records have to point to something with a A/AAAA record; no CNAMEs
-    A."xmpp" =                "%ANATIVE%";
-    CNAME."conference.xmpp" = "xmpp";
-    CNAME."upload.xmpp" =     "xmpp";
-
-    # _Service._Proto.Name    TTL Class SRV    Priority Weight Port Target
-    # - <https://xmpp.org/extensions/xep-0368.html>
-    # something's requesting the SRV records for conference.xmpp, so let's include it
-    # nothing seems to request XMPP SRVs for the other records (except @)
-    # lower numerical priority field tells clients to prefer this method
-    SRV."_xmpps-client._tcp.conference.xmpp" =       "3 50 5223 xmpp";
-    SRV."_xmpps-server._tcp.conference.xmpp" =       "3 50 5270 xmpp";
-    SRV."_xmpp-client._tcp.conference.xmpp" =        "5 50 5222 xmpp";
-    SRV."_xmpp-server._tcp.conference.xmpp" =        "5 50 5269 xmpp";
-
-    SRV."_xmpps-client._tcp" =                "3 50 5223 xmpp";
-    SRV."_xmpps-server._tcp" =                "3 50 5270 xmpp";
-    SRV."_xmpp-client._tcp" =                 "5 50 5222 xmpp";
-    SRV."_xmpp-server._tcp" =                 "5 50 5269 xmpp";
-  };
-
-  # help Prosody find its certificates.
-  # pointing it to /var/lib/acme doesn't quite work because it expects the private key
-  # to be named `privkey.pem` instead of acme's `key.pem`
-  # <https://prosody.im/doc/certificates#automatic_location>
-  sane.fs."/etc/prosody/certs/uninsane.org/fullchain.pem" = {
-    symlink.target = "/var/lib/acme/uninsane.org/fullchain.pem";
-    wantedBeforeBy = [ "prosody.service" ];
-  };
-  sane.fs."/etc/prosody/certs/uninsane.org/privkey.pem" = {
-    symlink.target = "/var/lib/acme/uninsane.org/key.pem";
-    wantedBeforeBy = [ "prosody.service" ];
-  };
-
-  services.prosody = {
-    enable = true;
-    package = pkgs.prosody.override {
-      # XXX(2023/10/15): build without lua-unbound support.
-      # this forces Prosody to fall back to the default Lua DNS resolver, which seems more reliable.
-      # fixes errors like "unbound.queryXYZUV: Resolver error: out of memory"
-      # related: <https://issues.prosody.im/1737#comment-11>
-      lua.withPackages = selector: pkgs.lua.withPackages (p:
-        selector (p // { luaunbound = null; })
-      );
-      # withCommunityModules = [ "turncredentials" ];
-    };
-    admins = [ "colin@uninsane.org" ];
-    # allowRegistration = false;  # defaults to false
-
-    muc = [
-      {
-        domain = "conference.xmpp.uninsane.org";
-      }
-    ];
-    uploadHttp.domain = "upload.xmpp.uninsane.org";
-
-    virtualHosts = {
-      # "Prosody requires at least one enabled VirtualHost to function. You can
-      # safely remove or disable 'localhost' once you have added another."
-      # localhost = {
-      #   domain = "localhost";
-      #   enabled = true;
-      # };
-      "xmpp.uninsane.org" = {
-        domain = "uninsane.org";
-        enabled = true;
-      };
-    };
-
-    ## modules:
-    # these are enabled by default, via <repo:nixos/nixpkgs:/pkgs/servers/xmpp/prosody/default.nix>
-    # - cloud_notify
-    # - http_upload
-    # - vcard_muc
-    # these are enabled by the module defaults (services.prosody.modules.<foo>)
-    # - admin_adhoc
-    # - blocklist
-    # - bookmarks
-    # - carbons
-    # - cloud_notify
-    # - csi
-    # - dialback
-    # - disco
-    # - http_files
-    # - mam
-    # - pep
-    # - ping
-    # - private
-    #   - XEP-0049: let clients store arbitrary (private) data on the server
-    # - proxy65
-    #   - XEP-0065: allow server to proxy file transfers between two clients who are behind NAT
-    # - register
-    # - roster
-    # - saslauth
-    # - smacks
-    # - time
-    # - tls
-    # - uptime
-    # - vcard_legacy
-    # - version
-
-    extraPluginPaths = [ ./modules ];
-
-    extraModules = [
-      # admin_shell: allows `prosodyctl shell` to work
-      # see: <https://prosody.im/doc/modules/mod_admin_shell>
-      # see: <https://prosody.im/doc/console>
-      "admin_shell"
-      "admin_telnet"  #< needed by admin_shell
-      # lastactivity: XEP-0012: allow users to query how long another user has been idle for
-      # - not sure why i enabled this; think it was in someone's config i referenced
-      "lastactivity"
-      # allows prosody to share TURN/STUN secrets with XMPP clients to provide them access to the coturn server.
-      # see: <https://prosody.im/doc/coturn>
-      "turn_external"
-      # legacy coturn integration
-      # see: <https://modules.prosody.im/mod_turncredentials.html>
-      # "turncredentials"
-      "sane_ntfy"
-    ] ++ lib.optionals enableDebug [
-      "stanza_debug"  #< logs EVERY stanza as debug: <https://prosody.im/doc/modules/mod_stanza_debug>
-    ];
-
-    extraConfig = ''
-      local function readAll(file)
-        local f = assert(io.open(file, "rb"))
-        local content = f:read("*all")
-        f:close()
-        -- remove trailing newline
-        return string.gsub(content, "%s+", "")
-      end
-
-      -- logging docs:
-      -- - <https://prosody.im/doc/logging>
-      -- - <https://prosody.im/doc/advanced_logging>
-      -- levels: debug, info, warn, error
-      log = {
-        ${if enableDebug then "debug" else "info"} = "*syslog";
-      }
-
-      -- see: <https://prosody.im/doc/certificates#automatic_location>
-      -- try to solve: "certmanager: Error indexing certificate directory /etc/prosody/certs: cannot open /etc/prosody/certs: No such file or directory"
-      -- only, this doesn't work because prosody doesn't like acme's naming scheme
-      -- certificates = "/var/lib/acme"
-
-      c2s_direct_tls_ports = { 5223 }
-      s2s_direct_tls_ports = { 5270 }
-
-      turn_external_host = "turn.uninsane.org"
-      turn_external_secret = readAll("/var/lib/coturn/shared_secret.bin")
-      -- turn_external_user = "prosody"
-
-      -- legacy mod_turncredentials integration
-      -- turncredentials_host = "turn.uninsane.org"
-      -- turncredentials_secret = readAll("/var/lib/coturn/shared_secret.bin")
-
-      ntfy_binary = "${pkgs.ntfy-sh}/bin/ntfy"
-      ntfy_topic = readAll("/run/secrets/ntfy-sh-topic")
-
-      -- s2s_require_encryption = true
-      -- c2s_require_encryption = true
-    '';
-  };
-}
--- a/hosts/by-name/servo/services/prosody/modules/mod_sane_ntfy.lua
+++ b/hosts/by-name/servo/services/prosody/modules/mod_sane_ntfy.lua
@@ -1,52 +0,0 @@
-- simple proof-of-concept Prosody module
-- module development guide: <https://prosody.im/doc/developers/modules>
-- module API docs: <https://prosody.im/doc/developers/moduleapi>
--
-- much of this code is lifted from Prosody's own `mod_cloud_notify`
-
-local jid = require"util.jid";
-
-local ntfy = module:get_option_string("ntfy_binary", "ntfy");
-local ntfy_topic = module:get_option_string("ntfy_topic", "xmpp");
-
-module:log("info", "initialized");
-
-local function is_urgent(stanza)
-  if stanza.name == "message" then
-    if stanza:get_child("propose", "urn:xmpp:jingle-message:0") then
-      return true, "jingle call";
-    end
-  end
-end
-
-local function publish_ntfy(message)
-  -- message should be the message to publish
-  local ntfy_url = string.format("https://ntfy.uninsane.org/%s", ntfy_topic)
-  local cmd = string.format("%s pub %q %q", ntfy, ntfy_url, message)
-  module.log("debug", "invoking ntfy: %s", cmd)
-  local success, reason, code = os.execute(cmd)
-  if not success then
-    module:log("warn", "ntfy failed: %s => %s %d", cmd, reason, code)
-  end
-end
-
-
-local function archive_message_added(event)
-  -- event is: { origin = origin, stanza = stanza, for_user = store_user, id = id }
-  local stanza = event.stanza;
-  local to = stanza.attr.to;
-  to = to and jid.split(to) or event.origin.username;
-
-  -- only notify if the stanza destination is the mam user we store it for
-  if event.for_user == to then
-    local is_urgent_stanza, urgent_reason = is_urgent(event.stanza);
-
-    if is_urgent_stanza then
-      module:log("info", "urgent push for %s (%s)", to, urgent_reason);
-      publish_ntfy(urgent_reason)
-    end
-  end
-end
-
-
-module:hook("archive-message-added", archive_message_added);
--- a/hosts/by-name/servo/services/slskd.nix
+++ b/hosts/by-name/servo/services/slskd.nix
@@ -1,74 +0,0 @@
-# Soulseek daemon (p2p file sharing with an emphasis on Music)
-# docs: <https://github.com/slskd/slskd/blob/master/docs/config.md>
-#
-# config precedence (higher precedence overrules lower precedence):
-# - Default Values < Environment Variables < YAML Configuraiton File < Command Line Arguments
-{ config, lib, ... }:
-{
-  sane.persist.sys.byStore.plaintext = [
-    { user = "slskd"; group = "slskd"; path = "/var/lib/slskd"; }
-  ];
-  sops.secrets."slskd_env" = {
-    owner = config.users.users.slskd.name;
-    mode = "0400";
-  };
-
-  users.users.slskd.extraGroups = [ "media" ];
-
-  sane.ports.ports."50000" = {
-    protocol = [ "tcp" ];
-    # not visible to WAN: i run this in a separate netns
-    visibleTo.ovpn = true;
-    description = "colin-soulseek";
-  };
-
-  sane.dns.zones."uninsane.org".inet.CNAME."soulseek" = "native";
-
-  services.nginx.virtualHosts."soulseek.uninsane.org" = {
-    forceSSL = true;
-    enableACME = true;
-    locations."/" = {
-      proxyPass = "http://10.0.1.6:5001";
-      proxyWebsockets = true;
-    };
-  };
-
-  services.slskd.enable = true;
-  # env file, for auth (SLSKD_SLSK_PASSWORD, SLSKD_SLSK_USERNAME)
-  services.slskd.environmentFile = config.sops.secrets.slskd_env.path;
-  services.slskd.settings = {
-    soulseek.diagnostic_level = "Debug";  # one of "None"|"Warning"|"Info"|"Debug"
-    shares.directories = [
-      # folders to share
-      # syntax: <https://github.com/slskd/slskd/blob/master/docs/config.md#directories>
-      # [Alias]/path/on/disk
-      # NOTE: Music library is quick to scan; videos take a solid 10min to scan.
-      # TODO: re-enable the other libraries
-      # "[Audioooks]/var/lib/uninsane/media/Books/Audiobooks"
-      # "[Books]/var/lib/uninsane/media/Books/Books"
-      # "[Manga]/var/lib/uninsane/media/Books/Visual"
-      # "[games]/var/lib/uninsane/media/games"
-      "[Music]/var/lib/uninsane/media/Music"
-      # "[Film]/var/lib/uninsane/media/Videos/Film"
-      # "[Shows]/var/lib/uninsane/media/Videos/Shows"
-    ];
-    # directories.downloads = "..." # TODO
-    # directories.incomplete = "..." # TODO
-    # what unit is this? kbps??
-    global.upload.speed_limit = 32000;
-    web.logging = true;
-    debug = true;
-    flags.no_logo = true;  # don't show logo at start
-    # flags.volatile = true;  # store searches and active transfers in RAM (completed transfers still go to disk). rec for btrfs/zfs
-  };
-
-  systemd.services.slskd = {
-    serviceConfig = {
-      # run this behind the OVPN static VPN
-      NetworkNamespacePath = "/run/netns/ovpns";
-      Restart = "on-failure";
-      RestartSec = "30s";
-      Group = "media";
-    };
-  };
-}
--- a/hosts/by-name/servo/services/transmission.nix
+++ b/hosts/by-name/servo/services/transmission.nix
@@ -1,27 +1,12 @@
-{ config, pkgs, ... }:
+{ pkgs, ... }:

 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    # TODO: mode? we need this specifically for the stats tracking in .config/
-    { user = "transmission"; group = config.users.users.transmission.group; path = "/var/lib/transmission"; }
+    { user = "transmission"; group = "transmission"; 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 = "*.*.*.*";
@@ -32,8 +17,9 @@
    rpc-password = "{503fc8928344f495efb8e1f955111ca5c862ce0656SzQnQ5";
    rpc-whitelist-enabled = false;

+    # download-dir = "/opt/uninsane/media/";
    # hopefully, make the downloads world-readable
-    # umask = 0;  #< default is 2: i.e. deny writes from world
+    umask = 0;

    # force peer connections to be encrypted
    encryption = 2;
@@ -49,18 +35,17 @@

    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";
-    Restart = "on-failure";
-    RestartSec = "30s";
+    LogLevelMax = "warning";
  };

  # service to automatically backup torrents i add to transmission
@@ -91,10 +76,5 @@
  };

  sane.dns.zones."uninsane.org".inet.CNAME."bt" = "native";
-  sane.ports.ports."51413" = {
-    protocol = [ "tcp" "udp" ];
-    visibleTo.ovpn = true;
-    description = "colin-bittorrent";
-  };
 }

--- a/hosts/by-name/servo/services/trust-dns.nix
+++ b/hosts/by-name/servo/services/trust-dns.nix
@@ -1,25 +1,23 @@
-# 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;
-  # FIXME(2023/11/26): services.trust-dns.debug doesn't log requests: use RUST_LOG=debug env for that.
-  # - see: <https://github.com/hickory-dns/hickory-dns/issues/2082>
  # services.trust-dns.debug = true;

  sane.ports.ports."53" = {
    protocol = [ "udp" "tcp" ];
    visibleTo.lan = true;
    visibleTo.wan = true;
-    visibleTo.ovpn = true;
    description = "colin-dns-hosting";
  };

@@ -36,19 +34,18 @@ in lib.mkMerge [
  sane.dns.zones."uninsane.org".inet = {
    SOA."@" = ''
      ns1.uninsane.org. admin-dns.uninsane.org. (
-                                      2023092101 ; Serial
+                                      2022122101 ; Serial
                                      4h         ; Refresh
                                      30m        ; Retry
                                      7d         ; Expire
                                      5m)        ; Negative response TTL
    '';
-    TXT."rev" = "2023092101";
+    TXT."rev" = "2023052901";

    CNAME."native" = "%CNAMENATIVE%";
    A."@" =      "%ANATIVE%";
-    A."servo.wan" = "%AWAN%";
+    A."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.
@@ -66,23 +63,55 @@ in lib.mkMerge [

  services.trust-dns.settings.zones = [ "uninsane.org" ];

-  # TODO: can i transform this into some sort of service group?
-  # have `systemctl restart trust-dns.service` restart all the individual services?
+  services.trust-dns.package =
+    let
+      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 = ''
@@ -98,113 +127,12 @@ in lib.mkMerge [
      -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/ \
-            -e s/%AOVPNS%/185.157.162.178/ \
-            ${zoneTemplate} > ${zoneFor flavor}
-        '';
-        serviceConfig = config.systemd.services.trust-dns.serviceConfig // {
-          ExecStart = ''
-            ${pkgs.trust-dns}/bin/${pkgs.trust-dns.meta.mainProgram} \
-            --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
-  ];
-}
-]
--- a/hosts/common/default.nix
+++ b/hosts/common/default.nix
@@ -3,10 +3,8 @@
  imports = [
    ./feeds.nix
    ./fs.nix
-    ./hardware
+    ./hardware.nix
    ./home
-    ./hostnames.nix
-    ./hosts.nix
    ./ids.nix
    ./machine-id.nix
    ./net.nix
@@ -22,54 +20,25 @@
  sane.nixcache.enable-trusted-keys = true;
  sane.nixcache.enable = lib.mkDefault true;
  sane.persist.enable = lib.mkDefault true;
-  sane.root-on-tmpfs = lib.mkDefault true;
  sane.programs.sysadminUtils.enableFor.system = lib.mkDefault true;
  sane.programs.consoleUtils.enableFor.user.colin = lib.mkDefault true;

-  nixpkgs.config.allowUnfree = true;  # NIXPKGS_ALLOW_UNFREE=1
-  nixpkgs.config.allowBroken = true;  # NIXPKGS_ALLOW_BROKEN=1
+  nixpkgs.config.allowUnfree = true;
+  nixpkgs.config.allowBroken = true;  # NIXPKGS_ALLOW_BROKEN

  # time.timeZone = "America/Los_Angeles";
  time.timeZone = "Etc/UTC";  # DST is too confusing for me => use a stable timezone

+  # allow `nix flake ...` command
+  # TODO: is this still required?
  nix.extraOptions = ''
-    # see: `man nix.conf`
-    # useful when a remote builder has a faster internet connection than me
-    builders-use-substitutes = true  # default: false
-    # maximum seconds to wait when connecting to binary substituter
-    connect-timeout = 3  # default: 0
-    # download-attempts = 5  # default: 5
-    # allow `nix flake ...` command
    experimental-features = nix-command flakes
-    # whether to build from source when binary substitution fails
-    fallback = true  # default: false
-    # whether to keep building dependencies if any other one fails
-    keep-going = true  # default: false
-    # whether to keep build-only dependencies of GC roots (e.g. C compiler) when doing GC
-    keep-outputs = true  # default: false
-    # how many lines to show from failed build
-    log-lines = 30  # default: 10
-    # narinfo-cache-negative-ttl = 3600  # default: 3600
-    # whether to use ~/.local/state/nix/profile instead of ~/.nix-profile, etc
-    use-xdg-base-directories = true  # default: false
-    # whether to warn if repository has uncommited changes
-    warn-dirty = false  # default: true
  '';
  # hardlinks identical files in the nix store to save 25-35% disk space.
  # unclear _when_ this occurs. it's not a service.
  # does the daemon continually scan the nix store?
  # does the builder use some content-addressed db to efficiently dedupe?
  nix.settings.auto-optimise-store = true;
-  # TODO: see if i can remove this?
-  nix.settings.trusted-users = [ "root" ];
-
-  services.journald.extraConfig = ''
-    # docs: `man journald.conf`
-    # merged journald config is deployed to /etc/systemd/journald.conf
-    [Journal]
-    # disable journal compression because the underlying fs is compressed
-    Compress=no
-  '';

  systemd.services.nix-daemon.serviceConfig = {
    # the nix-daemon manages nix builders
--- a/hosts/common/feeds.nix
+++ b/hosts/common/feeds.nix
@@ -1,5 +1,4 @@
 # where to find good stuff?
-# - podcasts w/ a community: <https://lemmyverse.net/communities?query=podcast>
 # - podcast rec thread: <https://lemmy.ml/post/1565858>
 #
 # candidates:
@@ -57,57 +56,75 @@ let
    };

  podcasts = [
-    (fromDb "acquiredlpbonussecretsecret.libsyn.com" // tech)  # ACQ2 - more "Acquired" episodes
-    (fromDb "allinchamathjason.libsyn.com" // pol)
-    (fromDb "anchor.fm/s/34c7232c/podcast/rss" // tech)  # Civboot -- https://anchor.fm/civboot
-    (fromDb "cast.postmarketos.org" // tech)
-    (fromDb "congressionaldish.libsyn.com" // pol)  # Jennifer Briney
-    (fromDb "craphound.com" // pol)  # Cory Doctorow -- both podcast & text entries
-    (fromDb "darknetdiaries.com" // tech)
-    (fromDb "feed.podbean.com/matrixlive/feed.xml" // tech)  # Matrix (chat) Live
-    (fromDb "feeds.99percentinvisible.org/99percentinvisible" // pol)  # 99% Invisible -- also available here: <https://feeds.simplecast.com/BqbsxVfO>
-    (fromDb "feeds.feedburner.com/80000HoursPodcast" // rat)
-    (fromDb "feeds.feedburner.com/dancarlin/history" // rat)
-    (fromDb "feeds.feedburner.com/radiolab" // pol)  # Radiolab -- also available here, but ONLY OVER HTTP: <http://feeds.wnyc.org/radiolab>
-    (fromDb "feeds.libsyn.com/421877" // rat)  # Less Wrong Curated
-    (fromDb "feeds.megaphone.fm/behindthebastards" // pol)  # also Maggie Killjoy
-    (fromDb "feeds.megaphone.fm/hubermanlab" // uncat)  # Daniel Huberman on sleep
-    (fromDb "feeds.megaphone.fm/recodedecode" // tech)  # The Verge - Decoder
-    (fromDb "feeds.simplecast.com/54nAGcIl" // pol)  # The Daily
-    (fromDb "feeds.simplecast.com/82FI35Px" // pol)  # Ezra Klein Show
-    (fromDb "feeds.simplecast.com/wgl4xEgL" // rat)  # Econ Talk
-    (fromDb "feeds.simplecast.com/xKJ93w_w" // uncat)  # Atlas Obscura
-    (fromDb "feeds.simplecast.com/l2i9YnTd" // tech // pol)  # Hard Fork (NYtimes tech)
-    (fromDb "feeds.transistor.fm/acquired" // tech)
    (fromDb "lexfridman.com/podcast" // rat)
-    (fromDb "mapspodcast.libsyn.com" // uncat)  # Multidisciplinary Association for Psychedelic Studies
-    (fromDb "omegataupodcast.net" // tech)  # 3/4 German; 1/4 eps are English
-    (fromDb "omny.fm/shows/cool-people-who-did-cool-stuff" // pol)  # Maggie Killjoy -- referenced by Cory Doctorow
-    (fromDb "podcast.posttv.com/itunes/post-reports.xml" // pol)
-    (fromDb "podcast.thelinuxexp.com" // tech)
-    (fromDb "politicalorphanage.libsyn.com" // pol)
-    (fromDb "reverseengineering.libsyn.com/rss" // tech)  # UnNamed Reverse Engineering Podcast
-    (fromDb "rss.acast.com/deconstructed")  # The Intercept - Deconstructed
-    (fromDb "rss.acast.com/ft-tech-tonic" // tech)
-    (fromDb "rss.acast.com/intercepted-with-jeremy-scahill")  # The Intercept - Intercepted
-    (fromDb "rss.art19.com/60-minutes" // pol)
-    (fromDb "rss.art19.com/the-portal" // rat)  # Eric Weinstein
-    (fromDb "seattlenice.buzzsprout.com" // pol)
-    (fromDb "sharkbytes.transistor.fm" // tech)  # Wireshark Podcast o_0
-    (fromDb "sscpodcast.libsyn.com" // rat)  # Astral Codex Ten
-    (fromDb "talesfromthebridge.buzzsprout.com" // tech)  # Sci-Fi? has Peter Watts; author of No Moods, Ads or Cutesy Fucking Icons (rifters.com)
-    (fromDb "techwontsave.us" // pol)  # rec by Cory Doctorow
-    # (fromDb "trashfuturepodcast.podbean.com" // pol)  # rec by Cory Doctorow, but way rambly
-    (fromDb "wakingup.libsyn.com" // pol)  # Sam Harris
-    (fromDb "werenotwrong.fireside.fm" // pol)
-
-    # (fromDb "rss.art19.com/your-welcome" // pol)  # Michael Malice - Your Welcome -- also available here: <https://origin.podcastone.com/podcast?categoryID2=2232>
-    # (fromDb "rss.prod.firstlook.media/deconstructed/podcast.rss" // pol)  #< possible URL rot
-    # (fromDb "rss.prod.firstlook.media/intercepted/podcast.rss" // pol)  #< possible URL rot
-    # (mkPod "https://anchor.fm/s/21bc734/podcast/rss" // pol // infrequent)  # Emerge: making sense of what's next -- <https://www.whatisemerging.com/emergepodcast>
-    # (mkPod "https://audioboom.com/channels/5097784.rss" // tech)  # Lateral with Tom Scott
-    # (mkPod "https://feeds.megaphone.fm/RUNMED9919162779" // pol // infrequent)  # The Witch Trials of J.K. Rowling: <https://www.thefp.com/witchtrials>
+    ## Astral Codex Ten
+    (fromDb "sscpodcast.libsyn.com" // rat)
+    ## Less Wrong Curated
+    (fromDb "feeds.libsyn.com/421877" // rat)
+    ## Econ Talk
+    (fromDb "feeds.simplecast.com/wgl4xEgL" // rat)
+    ## Cory Doctorow -- both podcast & text entries
+    (fromDb "craphound.com" // pol)
+    ## Maggie Killjoy -- referenced by Cory Doctorow
+    (fromDb "omny.fm/shows/cool-people-who-did-cool-stuff" // pol)
+    (fromDb "congressionaldish.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)
+    ## Emerge: making sense of what's next -- <https://www.whatisemerging.com/emergepodcast>
+    (mkPod "https://anchor.fm/s/21bc734/podcast/rss" // pol // infrequent)
+    (fromDb "feeds.feedburner.com/80000HoursPodcast" // rat)
+    ## Daniel Huberman on sleep
+    (fromDb "feeds.megaphone.fm/hubermanlab" // uncat)
+    ## Multidisciplinary Association for Psychedelic Studies
+    (fromDb "mapspodcast.libsyn.com" // uncat)
+    (fromDb "allinchamathjason.libsyn.com" // pol)
+    (fromDb "feeds.transistor.fm/acquired" // tech)
+    ## ACQ2 - more "Acquired" episodes
+    (fromDb "acquiredlpbonussecretsecret.libsyn.com" // tech)
+    # The Intercept - Deconstructed
+    (fromDb "rss.acast.com/deconstructed")
+    # (fromDb "rss.prod.firstlook.media/deconstructed/podcast.rss" // pol)  #< possible URL rot
+    ## The Daily
+    (mkPod "https://feeds.simplecast.com/54nAGcIl" // pol // daily)
+    # The Intercept - Intercepted
+    (fromDb "rss.acast.com/intercepted-with-jeremy-scahill")
+    # (fromDb "rss.prod.firstlook.media/intercepted/podcast.rss" // pol)  #< possible URL rot
+    (fromDb "podcast.posttv.com/itunes/post-reports.xml" // pol)
+    ## Eric Weinstein
+    (fromDb "rss.art19.com/the-portal" // rat)
+    (fromDb "darknetdiaries.com" // tech)
+    ## Radiolab -- also available here, but ONLY OVER HTTP: <http://feeds.wnyc.org/radiolab>
+    (fromDb "feeds.feedburner.com/radiolab" // pol)
+    ## Sam Harris
+    (fromDb "wakingup.libsyn.com" // pol)
+    ## 99% Invisible -- also available here: <https://feeds.simplecast.com/BqbsxVfO>
+    (fromDb "feeds.99percentinvisible.org/99percentinvisible" // pol)
+    (fromDb "rss.acast.com/ft-tech-tonic" // tech)
+    (fromDb "feeds.feedburner.com/dancarlin/history" // rat)
+    (fromDb "rss.art19.com/60-minutes" // pol)
+    ## The Verge - Decoder
+    (fromDb "feeds.megaphone.fm/recodedecode" // tech)
+    ## Matrix (chat) Live
+    (fromDb "feed.podbean.com/matrixlive/feed.xml" // tech)
+    (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 "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)
+    ## UnNamed Reverse Engineering Podcast
+    (fromDb "reverseengineering.libsyn.com/rss" // tech)
+    ## The Witch Trials of J.K. Rowling
+    ## - <https://www.thefp.com/witchtrials>
+    (mkPod "https://feeds.megaphone.fm/RUNMED9919162779" // pol // infrequent)
+    ## Atlas Obscura
+    (fromDb "feeds.simplecast.com/xKJ93w_w" // uncat)
+    ## Ezra Klein Show
+    (fromDb "feeds.simplecast.com/82FI35Px" // pol)
+    ## Wireshark Podcast o_0
+    (fromDb "sharkbytes.transistor.fm" // tech)
  ];

  texts = [
@@ -123,7 +140,7 @@ 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)
@@ -137,12 +154,8 @@ let
    # DEVELOPERS
    (fromDb "blog.jmp.chat" // tech)
    (fromDb "uninsane.org" // tech)
-    (fromDb "blog.thalheim.io" // tech)  # Mic92
    (fromDb "ascii.textfiles.com" // tech)  # Jason Scott
    (fromDb "xn--gckvb8fzb.com" // tech)
-    (fromDb "amosbbatto.wordpress.com" // tech)
-    (fromDb "fasterthanli.me" // tech)
-    (fromDb "jeffgeerling.com" // tech)
    (fromDb "mg.lol" // tech)
    # (fromDb "drewdevault.com" // tech)
    ## Ken Shirriff
@@ -153,7 +166,6 @@ let
    (fromDb "vitalik.ca" // tech)
    ## ian (Sanctuary)
    (fromDb "sagacioussuricata.com" // tech)
-    (fromDb "artemis.sh" // tech)
    ## Bunnie Juang
    (fromDb "bunniestudios.com" // tech)
    (fromDb "blog.danieljanus.pl" // tech)
@@ -164,8 +176,6 @@ let
    (mkText "https://anish.lakhwara.com/home.html" // tech // weekly)
    (fromDb "jefftk.com" // tech)
    (fromDb "pomeroyb.com" // tech)
-    (fromDb "harihareswara.net" // tech // pol)  # rec by Cory Doctorow
-    (fromDb "mako.cc/copyrighteous" // tech // pol)  # rec by Cory Doctorow
    # (mkText "https://til.simonwillison.net/tils/feed.atom" // tech // weekly)

    # TECH PROJECTS
@@ -231,7 +241,6 @@ 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)
--- a/hosts/common/fs.nix
+++ b/hosts/common/fs.nix
@@ -1,143 +1,136 @@
 # docs
 # - x-systemd options: <https://www.freedesktop.org/software/systemd/man/systemd.mount.html>

-{ lib, pkgs, sane-lib, ... }:
+{ pkgs, sane-lib, ... }:

-let
-  fsOpts = rec {
-    common = [
-      "_netdev"
-      "noatime"
-      "user"  # allow any user with access to the device to mount the fs
-      "x-systemd.requires=network-online.target"
-      "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
-    wg = [
-      "x-systemd.requires=wireguard-wg-home.service"
-      "x-systemd.after=wireguard-wg-home.service"
-    ];
+let fsOpts = rec {
+  common = [
+    "_netdev"
+    "noatime"
+    "user"  # allow any user with access to the device to mount the fs
+    "x-systemd.requires=network-online.target"
+    "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
+  wg = [
+    "x-systemd.requires=wireguard-wg-home.service"
+    "x-systemd.after=wireguard-wg-home.service"
+  ];

-    ssh = common ++ [
-      "identityfile=/home/colin/.ssh/id_ed25519"
-      "allow_other"
-      "default_permissions"
-    ];
-    sshColin = ssh ++ [
-      "transform_symlinks"
-      "idmap=user"
-      "uid=1000"
-      "gid=100"
-    ];
-    sshRoot = ssh ++ [
-      # 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"
-    ];
-    # in the event of hunt NFS mounts, consider:
-    # - <https://unix.stackexchange.com/questions/31979/stop-broken-nfs-mounts-from-locking-a-directory>
+  ssh = common ++ [
+    "identityfile=/home/colin/.ssh/id_ed25519"
+    "allow_other"
+    "default_permissions"
+  ];
+  sshColin = ssh ++ [
+    "transform_symlinks"
+    "idmap=user"
+    "uid=1000"
+    "gid=100"
+  ];
+  sshRoot = ssh ++ [
+    # 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"
+  ];
+  # in the event of hunt NFS mounts, consider:
+  # - <https://unix.stackexchange.com/questions/31979/stop-broken-nfs-mounts-from-locking-a-directory>

-    # NFS options: <https://linux.die.net/man/5/nfs>
-    # actimeo=n  = how long (in seconds) to cache file/dir attributes (default: 3-60s)
-    # bg         = retry failed mounts in the background
-    # retry=n    = for how many minutes `mount` will retry NFS mount operation
-    # 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)
-    # 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.
-    nfs = common ++ [
-      # "actimeo=10"
-      "bg"
-      "retrans=4"
-      "retry=0"
-      "soft"
-      "timeo=15"
-      "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;
-  };
+  # NFS options: <https://linux.die.net/man/5/nfs>
+  # actimeo=n  = how long (in seconds) to cache file/dir attributes (default: 3-60s)
+  # bg         = retry failed mounts in the background
+  # retry=n    = for how many minutes `mount` will retry NFS mount operation
+  # 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)
+  # 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.
+  nfs = common ++ [
+    # "actimeo=10"
+    "bg"
+    "retrans=4"
+    "retry=0"
+    "soft"
+    "timeo=15"
+    "nofail"  # don't fail remote-fs.target when this mount fails  (not an option for sshfs else would be common)
+  ];
+};
 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
-    # defaults to compressing at most 50% size of RAM
-    # claimed compression ratio is about 2:1
-    # - 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)
-    # docs: <https://www.kernel.org/doc/Documentation/blockdev/zram.txt>
-    #
-    # to query effectiveness:
-    # `cat /sys/block/zram0/mm_stat`. whitespace separated fields:
-    # - *orig_data_size*  (bytes)
-    # - *compr_data_size* (bytes)
-    # - mem_used_total    (bytes)
-    # - mem_limit         (bytes)
-    # - mem_used_max      (bytes)
-    # - *same_pages*  (pages which are e.g. all zeros (consumes no additional mem))
-    # - *pages_compacted*  (pages which have been freed thanks to compression)
-    # - huge_pages  (incompressible)
-    #
-    # see also:
-    # - `man zramctl`
-    zramSwap.enable = true;
-    # how much ram can be swapped into the zram device.
-    # this shouldn't be higher than the observed compression ratio.
-    # the default is 50% (why?)
-    # 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)
-    zramSwap.memoryPercent = 100;
+  # in-memory compressed RAM
+  # defaults to compressing at most 50% size of RAM
+  # claimed compression ratio is about 2:1
+  # - 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)
+  # docs: <https://www.kernel.org/doc/Documentation/blockdev/zram.txt>
+  #
+  # to query effectiveness:
+  # `cat /sys/block/zram0/mm_stat`. whitespace separated fields:
+  # - *orig_data_size*  (bytes)
+  # - *compr_data_size* (bytes)
+  # - mem_used_total    (bytes)
+  # - mem_limit         (bytes)
+  # - mem_used_max      (bytes)
+  # - *same_pages*  (pages which are e.g. all zeros (consumes no additional mem))
+  # - *pages_compacted*  (pages which have been freed thanks to compression)
+  # - huge_pages  (incompressible)
+  #
+  # see also:
+  # - `man zramctl`
+  zramSwap.enable = true;
+  # how much ram can be swapped into the zram device.
+  # this shouldn't be higher than the observed compression ratio.
+  # the default is 50% (why?)
+  # 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)
+  zramSwap.memoryPercent = 100;

-    # fileSystems."/mnt/servo-nfs" = {
-    #   device = "servo-hn:/";
-    #   noCheck = true;
-    #   fsType = "nfs";
-    #   options = fsOpts.nfs ++ fsOpts.auto ++ fsOpts.wg;
-    # };
-    fileSystems."/mnt/servo-nfs/media" = {
-      device = "servo-hn:/media";
-      noCheck = true;
-      fsType = "nfs";
-      options = fsOpts.nfs ++ fsOpts.auto ++ fsOpts.wg;
-    };
-    fileSystems."/mnt/servo-nfs/playground" = {
-      device = "servo-hn:/playground";
-      noCheck = true;
-      fsType = "nfs";
-      options = fsOpts.nfs ++ fsOpts.auto ++ fsOpts.wg;
-    };
-    # 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/servo-nfs" = {
+  #   device = "servo-hn:/";
+  #   noCheck = true;
+  #   fsType = "nfs";
+  #   options = fsOpts.nfs ++ fsOpts.auto ++ fsOpts.wg;
+  # };
+  fileSystems."/mnt/servo-nfs/media" = {
+    device = "servo-hn:/media";
+    noCheck = true;
+    fsType = "nfs";
+    options = fsOpts.nfs ++ fsOpts.auto ++ fsOpts.wg;
+  };
+  # 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";

-    environment.pathsToLink = [
-      # needed to achieve superuser access for user-mounted filesystems (see optionsRoot above)
-      # we can only link whole directories here, even though we're only interested in pkgs.openssh
-      "/libexec"
-    ];
+  fileSystems."/mnt/desko-home" = {
+    device = "colin@desko:/home/colin";
+    fsType = "fuse.sshfs";
+    options = fsOpts.sshColin ++ fsOpts.noauto;
+    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.systemPackages = [
-      pkgs.sshfs-fuse
-    ];
-  }
+  environment.pathsToLink = [
+    # needed to achieve superuser access for user-mounted filesystems (see optionsRoot above)
+    # we can only link whole directories here, even though we're only interested in pkgs.openssh
+    "/libexec"
+  ];

-  (remoteHome "desko")
-  (remoteHome "lappy")
-  (remoteHome "moby")
-]
+  environment.systemPackages = [
+    pkgs.sshfs-fuse
+  ];
+}

--- a/hosts/common/hardware.nix
+++ b/hosts/common/hardware.nix
@@ -0,0 +1,44 @@
+{ lib, pkgs, ... }:
+
+{
+  boot.initrd.supportedFilesystems = [ "ext4" "btrfs" "ext2" "ext3" "vfat" ];
+  # useful emergency utils
+  boot.initrd.extraUtilsCommands = ''
+    copy_bin_and_libs ${pkgs.btrfs-progs}/bin/btrfstune
+  '';
+  boot.kernelParams = [ "boot.shell_on_fail" ];
+  # other kernelParams:
+  #   "boot.trace"
+  #   "systemd.log_level=debug"
+  #   "systemd.log_target=console"
+
+  # hack in the `boot.shell_on_fail` arg since that doesn't always seem to work.
+  boot.initrd.preFailCommands = "allowShell=1";
+
+  # default: 4 (warn). 7 is debug
+  boot.consoleLogLevel = 7;
+
+  boot.loader.grub.enable = lib.mkDefault false;
+  boot.loader.generic-extlinux-compatible.enable = lib.mkDefault true;
+
+  # non-free firmware
+  hardware.enableRedistributableFirmware = true;
+
+  # powertop will default to putting USB devices -- including HID -- to sleep after TWO SECONDS
+  powerManagement.powertop.enable = false;
+
+  services.logind.extraConfig = ''
+    # don’t shutdown when power button is short-pressed
+    HandlePowerKey=ignore
+  '';
+
+  # services.snapper.configs = {
+  #   root = {
+  #     subvolume = "/";
+  #     extraConfig = {
+  #       ALLOW_USERS = "colin";
+  #     };
+  #   };
+  # };
+  # services.snapper.snapshotInterval = "daily";
+}
--- a/hosts/common/hardware/default.nix
+++ b/hosts/common/hardware/default.nix
@@ -1,74 +0,0 @@
-{ lib, pkgs, ... }:
-
-{
-  imports = [
-    ./x86_64.nix
-  ];
-
-  boot.initrd.supportedFilesystems = [ "ext4" "btrfs" "ext2" "ext3" "vfat" ];
-  # useful emergency utils
-  boot.initrd.extraUtilsCommands = ''
-    copy_bin_and_libs ${pkgs.btrfs-progs}/bin/btrfstune
-    copy_bin_and_libs ${pkgs.util-linux}/bin/{cfdisk,lsblk,lscpu}
-    copy_bin_and_libs ${pkgs.gptfdisk}/bin/{cgdisk,gdisk}
-    copy_bin_and_libs ${pkgs.smartmontools}/bin/smartctl
-    copy_bin_and_libs ${pkgs.e2fsprogs}/bin/resize2fs
-  '' + lib.optionalString pkgs.stdenv.hostPlatform.isx86_64 ''
-    copy_bin_and_libs ${pkgs.nvme-cli}/bin/nvme  # doesn't cross compile
-  '';
-  boot.kernelParams = [
-    "boot.shell_on_fail"
-    #v experimental full pre-emption for hopefully better call/audio latency on moby.
-    # also toggleable at runtime via /sys/kernel/debug/sched/preempt
-    # defaults to preempt=voluntary
-    # "preempt=full"
-  ];
-  # other kernelParams:
-  #   "boot.trace"
-  #   "systemd.log_level=debug"
-  #   "systemd.log_target=console"
-
-  # hack in the `boot.shell_on_fail` arg since that doesn't always seem to work.
-  boot.initrd.preFailCommands = "allowShell=1";
-
-  # default: 4 (warn). 7 is debug
-  boot.consoleLogLevel = 7;
-
-  boot.loader.grub.enable = lib.mkDefault false;
-  boot.loader.generic-extlinux-compatible.enable = lib.mkDefault true;
-
-  # non-free firmware
-  hardware.enableRedistributableFirmware = true;
-
-  # 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
-    HandlePowerKey=ignore
-  '';
-
-  # services.snapper.configs = {
-  #   root = {
-  #     subvolume = "/";
-  #     extraConfig = {
-  #       ALLOW_USERS = "colin";
-  #     };
-  #   };
-  # };
-  # services.snapper.snapshotInterval = "daily";
-}
--- a/hosts/common/home/keyring/default.nix
+++ b/hosts/common/home/keyring/default.nix
@@ -7,7 +7,7 @@ let
  };
 in
 {
-  sane.user.persist.byStore.private = [ ".local/share/keyrings" ];
+  sane.user.persist.private = [ ".local/share/keyrings" ];

  sane.user.fs."private/.local/share/keyrings/default" = {
    generated.command = [ "${init-keyring}/bin/init-keyring" ];
--- a/hosts/common/home/ssh.nix
+++ b/hosts/common/home/ssh.nix
@@ -13,7 +13,7 @@ let
 in
 {
  # ssh key is stored in private storage
-  sane.user.persist.byStore.private = [
+  sane.user.persist.private = [
    { type = "file"; path = ".ssh/id_ed25519"; }
  ];
  sane.user.fs.".ssh/id_ed25519.pub" = lib.mkIf (user-pubkey != null) {
--- a/hosts/common/hostnames.nix
+++ b/hosts/common/hostnames.nix
@@ -1,16 +0,0 @@
-# TODO: move to hosts/common/
-{ config, lib, ... }:
-
-{
-  # give each host a shortname that all the other hosts know, to allow easy comms.
-  networking.hosts = lib.mkMerge (builtins.map
-    (host: let
-      cfg = config.sane.hosts.by-name."${host}";
-    in {
-      "${cfg.lan-ip}" = [ host ];
-    } // lib.optionalAttrs (cfg.wg-home.ip != null) {
-      "${cfg.wg-home.ip}" = [ "${host}-hn" ];
-    })
-    (builtins.attrNames config.sane.hosts.by-name)
-  );
-}
--- a/hosts/common/hosts.nix
+++ b/hosts/common/hosts.nix
@@ -1,45 +0,0 @@
-{ 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";
-  };
-
-  sane.hosts.by-name."supercap" = {
-    ssh.authorized = false;
-    ssh.host_pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHf/mqqkX45EWAcquV04MC3SUljTApdclH1gjI19F+PA";
-    lan-ip = "10.78.79.232";
-  };
-}
--- a/hosts/common/ids.nix
+++ b/hosts/common/ids.nix
@@ -44,15 +44,6 @@
  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.monero.uid = 2416;
-  sane.ids.monero.gid = 2416;
-  sane.ids.slskd.uid = 2417;
-  sane.ids.slskd.gid = 2417;

  sane.ids.colin.uid = 1000;
  sane.ids.guest.uid = 1100;
@@ -67,8 +58,6 @@
  sane.ids.systemd-oom.uid = 2005;
  sane.ids.systemd-oom.gid = 2005;
  sane.ids.wireshark.gid = 2006;
-  sane.ids.nixremote.uid = 2007;
-  sane.ids.nixremote.gid = 2007;

  # found on graphical hosts
  sane.ids.nm-iodine.uid = 2101;  # desko/moby/lappy
@@ -92,8 +81,4 @@
  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;
 }
--- a/hosts/common/nix-path/default.nix
+++ b/hosts/common/nix-path/default.nix
@@ -1,4 +1,4 @@
-{ pkgs, sane-lib, ... }:
+{ pkgs, ... }:

 {
  # allow `nix-shell` (and probably nix-index?) to locate our patched and custom packages
@@ -10,7 +10,4 @@
    # to avoid switching so much during development
    "nixpkgs-overlays=/home/colin/dev/nixos/hosts/common/nix-path/overlay"
  ];
-
-  # ensure new deployments have a source of this repo with which they can bootstrap.
-  environment.etc."nixos".source = ../../..;
 }
--- a/hosts/common/persist.nix
+++ b/hosts/common/persist.nix
@@ -5,12 +5,12 @@
  # store /home/colin/a/b in /home/private/a/b instead of /home/private/home/colin/a/b
  sane.persist.stores.private.prefix = "/home/colin";

-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.plaintext = [
    # TODO: these should be private.. somehow
    "/var/log"
    "/var/backup"  # for e.g. postgres dumps
  ];
-  sane.persist.sys.byStore.cryptClearOnBoot = [
+  sane.persist.sys.cryptClearOnBoot = [
    "/var/lib/systemd/coredump"
  ];
 }
--- a/hosts/common/programs/abaddon.nix
+++ b/hosts/common/programs/abaddon.nix
@@ -1,107 +0,0 @@
-# discord gtk3 client
-{ config, lib, pkgs, ... }:
-let
-  cfg = config.sane.programs.abaddon;
-in
-{
-  sane.programs.abaddon = {
-    configOption = with lib; mkOption {
-      default = {};
-      type = types.submodule {
-        options.autostart = mkOption {
-          type = types.bool;
-          default = true;
-        };
-      };
-    };
-
-    package = pkgs.abaddon.overrideAttrs (upstream: {
-      patches = (upstream.patches or []) ++ [
-        (pkgs.fetchpatch {
-          url = "https://git.uninsane.org/colin/abaddon/commit/eb551f188d34679f75adcbc83cb8d5beb4d19fd6.patch";
-          name = ''"view members" default to false'';
-          hash = "sha256-9BX8iO86CU1lNrKS1G2BjDR+3IlV9bmhRNTsLrxChwQ=";
-        })
-        (pkgs.fetchpatch {
-          # this makes it so Abaddon reports its app_name in notifications.
-          # not 100% necessary; just a nice-to-have. maybe don't rely on it until it's merged upstream.
-          # upstream PR: <https://github.com/uowuo/abaddon/pull/247>
-          url = "https://git.uninsane.org/colin/abaddon/commit/18cd863fdbb5e6b1e9aaf9394dbd673d51839f30.patch";
-          name = "set glib application name";
-          hash = "sha256-IFYxf1D8hIsxgZehGd6hL3zJiBkPZfWGm+Faaa5ZFl4=";
-        })
-      ];
-    });
-
-    suggestedPrograms = [ "gnome-keyring" ];
-
-    fs.".config/abaddon/abaddon.ini".symlink.text = ''
-      # see abaddon README.md for options.
-      # at time of writing:
-      # | Setting       | Type    | Default | Description                                                                                      |
-      # |[discord]------|---------|---------|--------------------------------------------------------------------------------------------------|
-      # | `gateway`     | string  |         | override url for Discord gateway. must be json format and use zlib stream compression            |
-      # | `api_base`    | string  |         | override base url for Discord API                                                                |
-      # | `memory_db`   | boolean | false   | if true, Discord data will be kept in memory as opposed to on disk                               |
-      # | `token`       | string  |         | Discord token used to login, this can be set from the menu                                       |
-      # | `prefetch`    | boolean | false   | if true, new messages will cause the avatar and image attachments to be automatically downloaded |
-      # | `autoconnect` | boolean | false   | autoconnect to discord                                                                           |
-      # |[http]--------|--------|---------|---------------------------------------------------------------------------------------------|
-      # | `user_agent` | string |         | sets the user-agent to use in HTTP requests to the Discord API (not including media/images) |
-      # | `concurrent` | int    | 20      | how many images can be concurrently retrieved                                               |
-      # |[gui}------------------------|---------|---------|----------------------------------------------------------------------------------------------------------------------------|
-      # | `member_list_discriminator` | boolean | true    | show user discriminators in the member list                                                                                |
-      # | `stock_emojis`              | boolean | true    | allow abaddon to substitute unicode emojis with images from emojis.bin, must be false to allow GTK to render emojis itself |
-      # | `custom_emojis`             | boolean | true    | download and use custom Discord emojis                                                                                     |
-      # | `css`                       | string  |         | path to the main CSS file                                                                                                  |
-      # | `animations`                | boolean | true    | use animated images where available (e.g. server icons, emojis, avatars). false means static images will be used           |
-      # | `animated_guild_hover_only` | boolean | true    | only animate guild icons when the guild is being hovered over                                                              |
-      # | `owner_crown`               | boolean | true    | show a crown next to the owner                                                                                             |
-      # | `unreads`                   | boolean | true    | show unread indicators and mention badges                                                                                  |
-      # | `save_state`                | boolean | true    | save the state of the gui (active channels, tabs, expanded channels)                                                       |
-      # | `alt_menu`                  | boolean | false   | keep the menu hidden unless revealed with alt key                                                                          |
-      # | `hide_to_tray`              | boolean | false   | hide abaddon to the system tray on window close                                                                            |
-      # | `show_deleted_indicator`    | boolean | true    | show \[deleted\] indicator next to deleted messages instead of actually deleting the message                               |
-      # | `font_scale`                | double  |         | scale font rendering. 1 is unchanged                                                                                       |
-      # |[style]------------------|--------|-----------------------------------------------------|
-      # | `linkcolor`             | string | color to use for links in messages                  |
-      # | `expandercolor`         | string | color to use for the expander in the channel list   |
-      # | `nsfwchannelcolor`      | string | color to use for NSFW channels in the channel list  |
-      # | `channelcolor`          | string | color to use for SFW channels in the channel list   |
-      # | `mentionbadgecolor`     | string | background color for mention badges                 |
-      # | `mentionbadgetextcolor` | string | color to use for number displayed on mention badges |
-      # | `unreadcolor`           | string | color to use for the unread indicator               |
-      # |[notifications]|---------|--------------------------|-------------------------------------------------------------------------------|
-      # | `enabled`     | boolean | true (if not on Windows) | Enable desktop notifications                                                  |
-      # | `playsound`   | boolean | true                     | Enable notification sounds. Requires ENABLE_NOTIFICATION_SOUNDS=TRUE in CMake |
-      # |[voice]--|--------|------------------------------------|------------------------------------------------------------|
-      # | `vad`   | string | rnnoise if enabled, gate otherwise | Method used for voice activity detection. Changeable in UI |
-      # |[windows]|---------|---------|-------------------------|
-      # | `hideconsole` | boolean | true    | Hide console on startup |
-
-      # N.B.: abaddon writes this file itself (and even when i don't change anything internally).
-      # it prefers no spaces around the equal sign.
-      [discord]
-      autoconnect=true
-
-      [notifications]
-      # playsound: i manage sounds via swaync
-      playsound=false
-    '';
-
-    persist.byStore.private = [
-      ".cache/abaddon"
-    ];
-
-    services.abaddon = {
-      description = "unofficial Discord chat client";
-      wantedBy = lib.mkIf cfg.config.autostart [ "default.target" ];
-      serviceConfig = {
-        ExecStart = "${cfg.package}/bin/abaddon";
-        Type = "simple";
-        Restart = "always";
-        RestartSec = "20s";
-      };
-    };
-  };
-}
--- a/hosts/common/programs/alacritty.nix
+++ b/hosts/common/programs/alacritty.nix
@@ -1,24 +0,0 @@
-# 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 }
-    '';
-  };
-}
--- a/hosts/common/programs/animatch.nix
+++ b/hosts/common/programs/animatch.nix
@@ -1,10 +0,0 @@
-{ ... }:
-{
-  sane.programs.animatch = {
-    persist.byStore.plaintext = [
-      # game progress
-      ".config/Holy Pangolin/Animatch"
-      ".local/share/Holy Pangolin/Animatch"  # i think this one might be wrong
-    ];
-  };
-}
--- a/hosts/common/programs/assorted.nix
+++ b/hosts/common/programs/assorted.nix
@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ pkgs, ... }:

 let
  declPackageSet = pkgs: {
@@ -20,7 +20,6 @@ in
      "sane-scripts.bt-show"
    ];
    "sane-scripts.dev" = declPackageSet [
-      "sane-scripts.clone"
      "sane-scripts.dev-cargo-loop"
      "sane-scripts.git-init"
    ];
@@ -42,17 +41,16 @@ in
      "sane-scripts.secrets-unlock"
      "sane-scripts.secrets-update-keys"
      "sane-scripts.shutdown"
+      "sane-scripts.ssl-dump"
      "sane-scripts.sudo-redirect"
      "sane-scripts.sync-from-servo"
-      "sane-scripts.vpn"
+      "sane-scripts.vpn-down"
+      "sane-scripts.vpn-up"
      "sane-scripts.which"
      "sane-scripts.wipe-browser"
-      "sane-scripts.wipe-flare"
-      "sane-scripts.wipe-fractal"
    ];
    "sane-scripts.sys-utils" = declPackageSet [
      "sane-scripts.ip-port-forward"
-      "sane-scripts.sync-music"
    ];


@@ -60,27 +58,21 @@ in
      "btrfs-progs"
      "cacert.unbundled"  # some services require unbundled /etc/ssl/certs
      "cryptsetup"
-      "ddrescue"
      "dig"
-      "dtc"  # device tree [de]compiler
-      "e2fsprogs"  # resize2fs
      "efibootmgr"
-      "ethtool"
      "fatresize"
      "fd"
      "file"
      # "fwupd"
      "gawk"
-      "gdb"  # to debug segfaults
      "git"
-      "gptfdisk"  # gdisk
+      "gptfdisk"
      "hdparm"
      "htop"
      "iftop"
      "inetutils"  # for telnet
      "iotop"
      "iptables"
-      "iw"
      "jq"
      "killall"
      "lsof"
@@ -91,7 +83,6 @@ in
      "netcat"
      "nethogs"
      "nmap"
-      "nvme-cli"  # nvme
      "openssl"
      "parted"
      "pciutils"
@@ -99,17 +90,15 @@ in
      "pstree"
      "ripgrep"
      "screen"
-      "smartmontools"  # smartctl
+      "smartmontools"
      "socat"
      "strace"
      "subversion"
      "tcpdump"
      "tree"
      "usbutils"
-      "util-linux"  # lsblk, lscpu, etc
      "wget"
      "wirelesstools"  # iwlist
-      "xq"  # jq for XML
    ];
    sysadminExtraUtils = declPackageSet [
      "backblaze-b2"
@@ -125,13 +114,11 @@ in
    #   - debugging?
    consoleUtils = declPackageSet [
      "alsaUtils"  # for aplay, speaker-test
-      "binutils-unwrapped"  # for strings; though this brings 80MB of unrelated baggage too
      # "cdrtools"
      "clinfo"
      "dmidecode"
      "dtrx"  # `unar` alternative, "Do The Right eXtraction"
      "efivar"
-      "eza"  # a better 'ls'
      # "flashrom"
      "git"  # needed as a user package, for config.
      # "gnupg"
@@ -139,11 +126,11 @@ 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"
      # "memtester"
-      "mercurial"  # hg
      "neovim"  # needed as a user package, for swap persistence
      # "nettools"
      # "networkmanager"
@@ -153,7 +140,7 @@ in
      # "oathToolkit"  # for oathtool
      # "ponymix"
      "pulsemixer"
-      "python3-repl"
+      "python3"
      # "python3Packages.eyeD3"  # music tagging
      "ripgrep"  # needed as a user package so that its user-level config file can be installed
      "rsync"
@@ -166,14 +153,14 @@ in
      "sudo"
      # "tageditor"  # music tagging
      # "unar"
-      "unzip"
      "wireguard-tools"
+      "xdg-terminal-exec"
      "xdg-utils"  # for xdg-open
      # "yarn"
      "zsh"
    ];

-    pcConsoleUtils = declPackageSet [
+    desktopConsoleUtils = declPackageSet [
      "gh"  # MS GitHub cli
      "nix-index"
      "nixpkgs-review"
@@ -188,11 +175,11 @@ in
      "yt-dlp"
    ];

-    pcTuiApps = declPackageSet [
+    tuiApps = declPackageSet [
      "aerc"  # email client
      "msmtp"  # sendmail
      "offlineimap"  # email mailbox sync
-      # "sfeed"  # RSS fetcher
+      "sfeed"  # RSS fetcher
      "visidata"  # TUI spreadsheet viewer/editor
      "w3m"  # web browser
    ];
@@ -205,83 +192,63 @@ in
    ];

    devPkgs = declPackageSet [
-      "cargo"
      "clang"
-      "lua"
      "nodejs"
-      "patchelf"
-      "rustc"
      "tree-sitter"
    ];


    # INDIVIDUAL PACKAGE DEFINITIONS

-    cargo.persist.byStore.plaintext = [ ".cargo" ];
+    dino.persist.private = [ ".local/share/dino" ];

    # creds, but also 200 MB of node modules, etc
-    discord.persist.byStore.private = [ ".config/discord" ];
-
-    endless-sky.persist.byStore.plaintext = [ ".local/share/endless-sky" ];
+    discord.persist.private = [ ".config/discord" ];

    # `emote` will show a first-run dialog based on what's in this directory.
    # mostly, it just keeps a LRU of previously-used emotes to optimize display order.
    # TODO: package [smile](https://github.com/mijorus/smile) for probably a better mobile experience.
-    emote.persist.byStore.plaintext = [ ".local/share/Emote" ];
+    emote.persist.plaintext = [ ".local/share/Emote" ];

-    fluffychat-moby.persist.byStore.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;
-    };
+    fluffychat-moby.persist.plaintext = [ ".local/share/chat.fluffy.fluffychat" ];

    # 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.byStore.private = [ ".config/gh" ];
-
-    gnome-2048.persist.byStore.plaintext = [ ".local/share/gnome-2048/scores" ];
-
-    "gnome.gnome-maps".persist.byStore.plaintext = [ ".cache/shumate" ];
-    "gnome.gnome-maps".persist.byStore.private = [ ".local/share/maps-places.json" ];
+    gh.persist.private = [ ".config/gh" ];

    # 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.byStore.plaintext = [ ".bitmonero" ];
+    monero-gui.persist.plaintext = [ ".bitmonero" ];

-    mumble.persist.byStore.private = [ ".local/share/Mumble" ];
+    mumble.persist.private = [ ".local/share/Mumble" ];

    # settings (electron app)
-    obsidian.persist.byStore.plaintext = [ ".config/obsidian" ];
+    obsidian.persist.plaintext = [ ".config/obsidian" ];

-    python3-repl.package = pkgs.python3.withPackages (ps: with ps; [
-      requests
-    ]);
-
-    shattered-pixel-dungeon.persist.byStore.plaintext = [ ".local/share/.shatteredpixel/shattered-pixel-dungeon" ];
+    # creds, media
+    signal-desktop.persist.private = [ ".config/Signal" ];

    # printer/filament settings
-    slic3r.persist.byStore.plaintext = [ ".Slic3r" ];
+    slic3r.persist.plaintext = [ ".Slic3r" ];

-    space-cadet-pinball.persist.byStore.plaintext = [ ".local/share/SpaceCadetPinball" ];
+    # creds, widevine .so download. TODO: could easily manage these statically.
+    spotify.persist.plaintext = [ ".config/spotify" ];

-    superTux.persist.byStore.plaintext = [ ".local/share/supertux2" ];
+    tdesktop.persist.private = [ ".local/share/TelegramDesktop" ];

-    tdesktop.persist.byStore.private = [ ".local/share/TelegramDesktop" ];
+    tokodon.persist.private = [ ".cache/KDE/tokodon" ];

-    tokodon.persist.byStore.private = [ ".cache/KDE/tokodon" ];
+    # hardenedMalloc solves an "unable to connect to Tor" error when pressing the "connect" button
+    # - still required as of 2023/07/14
+    tor-browser-bundle-bin.package = pkgs.tor-browser-bundle-bin.override {
+      useHardenedMalloc = false;
+    };

-    vvvvvv.persist.byStore.plaintext = [ ".local/share/VVVVVV" ];
+    whalebird.persist.private = [ ".config/Whalebird" ];

-    whalebird.persist.byStore.private = [ ".config/Whalebird" ];
-
-    yarn.persist.byStore.plaintext = [ ".cache/yarn" ];
+    yarn.persist.plaintext = [ ".cache/yarn" ];

    # zcash coins. safe to delete, just slow to regenerate (10-60 minutes)
-    zecwallet-lite.persist.byStore.private = [ ".zcash" ];
-  };
-
-  programs.feedbackd = lib.mkIf config.sane.programs.feedbackd.enabled {
-    enable = true;
+    zecwallet-lite.persist.private = [ ".zcash" ];
  };
 }
--- a/hosts/common/programs/bemenu.nix
+++ b/hosts/common/programs/bemenu.nix
@@ -1,103 +0,0 @@
-{ lib, pkgs, ... }:
-# notable bemenu options:
-#   - see `bemenu --help` for all
-#   -P, --prefix          text to show before highlighted item.
-#   --scrollbar           display scrollbar. (none (default), always, autohide)
-#   -H, --line-height     defines the height to make each menu line (0 = default height). (wx)
-#   -M, --margin          defines the empty space on either side of the menu. (wx)
-#   -W, --width-factor    defines the relative width factor of the menu (from 0 to 1). (wx)
-#   -B, --border          defines the width of the border in pixels around the menu. (wx)
-#   -R  --border-radius   defines the radius of the border around the menu (0 = no curved borders).
-#   --ch                  defines the height of the cursor (0 = scales with line height). (wx)
-#   --cw                  defines the width of the cursor. (wx)
-#   --hp                  defines the horizontal padding for the entries in single line mode. (wx)
-#   --fn                  defines the font to be used ('name [size]'). (wx)
-#   --tb                  defines the title background color. (wx)
-#   --tf                  defines the title foreground color. (wx)
-#   --fb                  defines the filter background color. (wx)
-#   --ff                  defines the filter foreground color. (wx)
-#   --nb                  defines the normal background color. (wx)
-#   --nf                  defines the normal foreground color. (wx)
-#   --hb                  defines the highlighted background color. (wx)
-#   --hf                  defines the highlighted foreground color. (wx)
-#   --fbb                 defines the feedback background color. (wx)
-#   --fbf                 defines the feedback foreground color. (wx)
-#   --sb                  defines the selected background color. (wx)
-#   --sf                  defines the selected foreground color. (wx)
-#   --ab                  defines the alternating background color. (wx)
-#   --af                  defines the alternating foreground color. (wx)
-#   --scb                 defines the scrollbar background color. (wx)
-#   --scf                 defines the scrollbar foreground color. (wx)
-#   --bdr                 defines the border color. (wx)
-#
-# colors are specified as `#RRGGBB`
-# defaults:
-# --ab "#222222"
-# --af "#bbbbbb"
-# --bdr "#005577"
-# --border 3
-# --cb "#222222"
-# --center
-# --cf "#bbbbbb"
-# --fb "#222222"
-# --fbb "#eeeeee"
-# --fbf "#222222"
-# --ff "#bbbbbb"
-# --fixed-height
-# --fn 'Sxmo 14'
-# --hb "#005577"
-# --hf "#eeeeee"
-# --line-height 20
-# --list 16
-# --margin 40
-# --nb "#222222"
-# --nf "#bbbbbb"
-# --no-overlap
-# --no-spacing
-# --sb "#323232"
-# --scb "#005577"
-# --scf "#eeeeee"
-# --scrollbar autohide
-# --tb "#005577"
-# --tf "#eeeeee"
-# --wrap
-let
-  bg = "#1d1721";       # slight purple
-  fg0 = "#d8d8d8";      # inactive text (light grey)
-  fg1 = "#ffffff";      # active text   (white)
-  accent0 = "#1f5e54";  # darker but saturated teal
-  accent1 = "#418379";  # teal (matches nixos-bg)
-  accent2 = "#5b938a";  # brighter but muted teal
-  bemenuArgs = [
-    "--wrap --scrollbar autohide --fixed-height"
-    "--center --margin 45"
-    "--no-spacing"
-    # XXX: font size doesn't seem to take effect (would prefer larger)
-    "--fn 'monospace 14' --line-height 22 --border 3"
-    "--bdr '${accent0}'"                     # border
-    "--scf '${accent2}' --scb '${accent0}'"  # scrollbar
-    "--tb '${accent0}' --tf '${fg0}'"        # title
-    "--fb '${accent0}' --ff '${fg1}'"        # filter (i.e. text that's been entered)
-    "--hb '${accent1}' --hf '${fg1}'"        # selected item
-    "--nb '${bg}' --nf '${fg0}'"             # normal lines (even)
-    "--ab '${bg}' --af '${fg0}'"             # alternated lines (odd)
-    "--cf '${accent0}' --cb '${accent0}'"    # cursor (not very useful)
-  ];
-  bemenuOpts = lib.concatStringsSep " " bemenuArgs;
-in
-{
-  sane.programs.bemenu = {
-    package = pkgs.bemenu.overrideAttrs (upstream: {
-      nativeBuildInputs = (upstream.nativeBuildInputs or []) ++ [
-        pkgs.makeWrapper
-      ];
-      # can alternatively be specified as CLI flags
-      postInstall = (upstream.postInstall or "") + ''
-        wrapProgram $out/bin/bemenu \
-          --set BEMENU_OPTS "${bemenuOpts}"
-        wrapProgram $out/bin/bemenu-run \
-          --set BEMENU_OPTS "${bemenuOpts}"
-      '';
-    });
-  };
-}
--- a/hosts/common/programs/brave.nix
+++ b/hosts/common/programs/brave.nix
@@ -1,9 +0,0 @@
-{ ... }:
-{
-  sane.programs.brave = {
-    persist.byStore.cryptClearOnBoot = [
-      ".cache/BraveSoftware"
-      ".config/BraveSoftware"
-    ];
-  };
-}
--- a/hosts/common/programs/calls.nix
+++ b/hosts/common/programs/calls.nix
@@ -1,61 +0,0 @@
-# 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.byStore.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;
-  };
-}
--- a/hosts/common/programs/cantata.nix
+++ b/hosts/common/programs/cantata.nix
@@ -1,36 +0,0 @@
-# cantata is a mpd frontend.
-# before launching it, run `mopidy` in some tab
-# TODO: auto-launch mopidy when cantata launches?
-{ ... }:
-{
-  sane.programs.cantata = {
-    persist.byStore.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" ];
-  };
-}
--- a/hosts/common/programs/chatty.nix
+++ b/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 and cross issues, for unused feature
+          # saves 20 minutes of build time, for unused feature
          samba = null;
        };
      };
@@ -36,11 +36,9 @@ in
    # package = chattyNoOauth;
    package = chatty-latest;
    suggestedPrograms = [ "gnome-keyring" ];
-    persist.byStore.private = [
+    persist.private = [
      ".local/share/chatty"  # matrix avatars and files
-      # 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"
+      # ".purple"  # XMPP stuff
    ];
  };
 }
--- a/hosts/common/programs/conky/default.nix
+++ b/hosts/common/programs/conky/default.nix
@@ -1,34 +0,0 @@
-{ 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"'';
-    };
-  };
-}
--- a/hosts/common/programs/cozy.nix
+++ b/hosts/common/programs/cozy.nix
@@ -3,7 +3,7 @@
 {
  sane.programs.cozy = {
    # cozy uses a sqlite db for its config and exposes no CLI options other than --help and --debug
-    persist.byStore.plaintext = [
+    persist.plaintext = [
      ".local/share/cozy"  # sqlite db (config & index?)
      ".cache/cozy"  # offline cache
    ];
--- a/hosts/common/programs/default.nix
+++ b/hosts/common/programs/default.nix
@@ -2,79 +2,48 @@

 {
  imports = [
-    ./abaddon.nix
    ./aerc.nix
-    ./alacritty.nix
-    ./animatch.nix
    ./assorted.nix
-    ./bemenu.nix
-    ./brave.nix
-    ./calls.nix
-    ./cantata.nix
    ./chatty.nix
-    ./conky
    ./cozy.nix
-    ./dialect.nix
-    ./dino.nix
    ./element-desktop.nix
    ./epiphany.nix
    ./evince.nix
-    ./feedbackd.nix
    ./firefox.nix
-    ./flare-signal.nix
    ./fontconfig.nix
    ./fractal.nix
    ./fwupd.nix
-    ./g4music.nix
-    ./gajim.nix
-    ./geary.nix
    ./git.nix
    ./gnome-feeds.nix
    ./gnome-keyring.nix
-    ./gnome-weather.nix
    ./gpodder.nix
    ./gthumb.nix
-    ./gtkcord4.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
-    ./signal-desktop.nix
    ./splatmoji.nix
-    ./spot.nix
-    ./spotify.nix
    ./steam.nix
-    ./stepmania.nix
    ./sublime-music.nix
-    ./supertuxkart.nix
-    ./sway-autoscaler
-    ./swaynotificationcenter.nix
    ./tangram.nix
-    ./tor-browser-bundle-bin.nix
    ./tuba.nix
    ./vlc.nix
-    ./wike.nix
-    ./wine.nix
    ./wireshark.nix
    ./xarchiver.nix
    ./zeal.nix
--- a/hosts/common/programs/dialect.nix
+++ b/hosts/common/programs/dialect.nix
@@ -1,13 +0,0 @@
-{ pkgs, ... }:
-{
-  sane.programs.dialect = {
-    package = pkgs.dialect.overrideAttrs (upstream: {
-      # TODO: send upstream
-      # TODO: figure out how to get audio working
-      # TODO: move to runtimeDependencies?
-      buildInputs = upstream.buildInputs ++ [
-        pkgs.glib-networking  # for TLS
-      ];
-    });
-  };
-}
--- a/hosts/common/programs/dino.nix
+++ b/hosts/common/programs/dino.nix
@@ -1,71 +0,0 @@
-# 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
-#   - possibly this is solved by enabling RealtimeKit (rtkit)
-# - TODO: see if Dino calls work better with `echo full > /sys/kernel/debug/sched/preempt`
-#
-# 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.byStore.private = [ ".local/share/dino" ];
-
-    services.dino = {
-      description = "dino XMPP client";
-      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";
-    };
-  };
-}
--- a/hosts/common/programs/element-desktop.nix
+++ b/hosts/common/programs/element-desktop.nix
@@ -1,19 +1,8 @@
-# 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>
-{ pkgs, ... }:
+{ ... }:
 {
  sane.programs.element-desktop = {
-    package = pkgs.element-desktop.override {
-      # use pre-build electron because otherwise it takes 4 hrs to build from source.
-      electron = pkgs.electron-bin;
-    };
-
    # creds/session keys, etc
-    persist.byStore.private = [ ".config/Element" ];
+    persist.private = [ ".config/Element" ];

    suggestedPrograms = [ "gnome-keyring" ];
  };
--- a/hosts/common/programs/epiphany.nix
+++ b/hosts/common/programs/epiphany.nix
@@ -8,7 +8,7 @@
 { pkgs, ... }:
 {
  sane.programs.epiphany = {
-    # XXX(2023/07/08): running on moby without `WEBKIT_DISABLE_SANDBOX...` fails, with:
+    # XXX(2023/07/08): running on moby without this hack fails, with:
    # - `bwrap: Can't make symlink at /var/run: File exists`
    # this could be due to:
    # - epiphany is somewhere following a symlink into /var/run instead of /run
@@ -19,9 +19,6 @@
    # - <https://gitlab.gnome.org/GNOME/gnome-builder/-/issues/1164>
    # - <https://github.com/flatpak/flatpak/issues/3477>
    # - <https://github.com/NixOS/nixpkgs/issues/197085>
-    #
-    # TODO: consider `WEBKIT_USE_SINGLE_WEB_PROCESS=1` for better perf
-    # - this runs all tabs in 1 process. which is fine, if i'm not a heavy multi-tabber
    package = pkgs.epiphany.overrideAttrs (upstream: {
      preFixup = ''
        gappsWrapperArgs+=(
@@ -29,7 +26,7 @@
        );
      '' + (upstream.preFixup or "");
    });
-    persist.byStore.private = [
+    persist.private = [
      ".cache/epiphany"
      ".local/share/epiphany"
      # also .config/epiphany, but appears empty
--- a/hosts/common/programs/feedbackd.nix
+++ b/hosts/common/programs/feedbackd.nix
@@ -1,114 +0,0 @@
-{ 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 = {};
-  };
-}
--- a/hosts/common/programs/firefox.nix
+++ b/hosts/common/programs/firefox.nix
@@ -13,14 +13,7 @@ let
  mobile-prefs = lib.optionals false pkgs.librewolf-pmos-mobile.extraPrefsFiles;
  # allow easy switching between firefox and librewolf with `defaultSettings`, below
  librewolfSettings = {
-    browser = pkgs.librewolf-unwrapped.overrideAttrs (upstream: {
-      # TEMP(2023/11/21): fix eval bug in wrapFirefox
-      # see: <https://github.com/NixOS/nixpkgs/pull/244591>
-      passthru = upstream.passthru // {
-        requireSigning = false;
-        allowAddonSideload = true;
-      };
-    });
+    browser = pkgs.librewolf-unwrapped;
    extraPrefsFiles = pkgs.librewolf-unwrapped.extraPrefsFiles ++ mobile-prefs;
    libName = "librewolf";
    dotDir = ".librewolf";
@@ -232,13 +225,6 @@ in
          // treat it as unrevoked.
          // see: <https://librewolf.net/docs/faq/#im-getting-sec_error_ocsp_server_error-what-can-i-do>
          defaultPref("security.OCSP.require", false);
-
-          // scrollbar configuration, see: <https://artemis.sh/2023/10/12/scrollbars.html>
-          // style=4 gives rectangular scrollbars
-          // could also enable "always show scrollbars" in about:preferences -- not sure what the actual pref name for that is
-          // note that too-large scrollbars (like 50px wide) tend to obscure content (and make buttons unclickable)
-          defaultPref("widget.non-native-theme.scrollbar.size.override", 20);
-          defaultPref("widget.non-native-theme.scrollbar.style", 4);
        '';
        fs."${cfg.browser.dotDir}/default".dir = {};
        # instruct Firefox to put the profile in a predictable directory (so we can do things like persist just it).
--- a/hosts/common/programs/flare-signal.nix
+++ b/hosts/common/programs/flare-signal.nix
@@ -1,47 +0,0 @@
-# Flare is a 3rd-party GTK4 Signal app.
-# UI is effectively a clone of Fractal.
-#
-# compatibility:
-# - desko: works fine. pairs, and exchanges contact list (but not message history) with the paired device. exchanges future messages fine.
-# - moby (cross compiled flare-signal-nixified): nope. it pairs, but can only *receive* messages and never *send* them.
-#   - even `rsync`ing the data and keyrings from desko -> moby, still fails in that same manner.
-#   - console shows error messages. quite possibly an endianness mismatch somewhere
-# - moby (partially-emulated flare-signal): works! pairs and can send/receive messages, same as desko.
-#
-# error signatures (to reset, run `sane-wipe-fractal`):
-# - upon sending a message, the other side receives it, but Signal desktop gets "A message from Colin could not be delivered" and the local CLI shows:
-#   ```
-#   ERROR libsignal_service::websocket] SignalWebSocket: Websocket error: SignalWebSocket: end of application request stream; socket closing
-#   ERROR presage::manager] Error opening envelope: ProtobufDecodeError(DecodeError { description: "invalid tag value: 0", stack: [("Content", "data_message")] }), message will be skipped!
-#   ERROR presage::manager] Error opening envelope: ProtobufDecodeError(DecodeError { description: "invalid tag value: 0", stack: [("Content", "data_message")] }), message will be skipped!
-#   ```
-# - this occurs on moby, desko, `flare-signal` and `flare-signal-nixified`
-# - the Websocket error seems to be unrelated, occurs during normal/good operation
-# - related issues: <https://github.com/whisperfish/presage/issues/152>
-# error when sending from Flare to other Flare device:
-# - ```
-#   ERROR libsignal_protocol::session_cipher] Message from <UUID>.3 failed to decrypt; sender ratchet public key <key> message counter 1
-#       No current session
-#   ERROR presage::manager] Error opening envelope: SignalProtocolError(InvalidKyberPreKeyId), message will be skipped!
-#   ```
-# - but signal iOS will still read it.
-#
-# well, seems to have unpredictable errors particularly when being used on multiple devices.
-# desktop _seems_ more reliable than on mobile, but not confident.
-
-{ pkgs, ... }:
-{
-  sane.programs.flare-signal = {
-    package = pkgs.flare-signal-nixified;
-    # package = pkgs.flare-signal;
-    persist.byStore.private = [
-      # everything: conf, state, files, all opaque
-      ".local/share/flare"
-      # also persists a secret in ~/.local/share/keyrings. reset with:
-      # - `secret-tool search --all --unlock 'xdg:schema' 'de.schmidhuberj.Flare'`
-      # - `secret-tool clear 'xdg:schema' 'de.schmidhuberj.Flare'`
-      # and it persists some dconf settings (e.g. device name). reset with:
-      # - `dconf reset -f /de/schmidhuberj/Flare/`.
-    ];
-  };
-}
--- a/hosts/common/programs/fontconfig.nix
+++ b/hosts/common/programs/fontconfig.nix
@@ -1,68 +1,15 @@
-# 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 = [
-        "Noto Color Emoji"
-        "Font Awesome 6 Free"
-        "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"
-      ];
+      emoji = [ "Font Awesome 6 Free" "Noto Color Emoji" ];
+      monospace = [ "Hack" ];
+      serif = [ "DejaVu Serif" ];
+      sansSerif = [ "DejaVu Sans" ];
    };
    #vvv enables dejavu_fonts, freefont_ttf, gyre-fonts, liberation_ttf, unifont, noto-fonts-emoji
-    enableDefaultPackages = false;
-    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;
+    enableDefaultPackages = true;
+    packages = with pkgs; [ font-awesome noto-fonts-emoji hack-font ];
  };
 }
--- a/hosts/common/programs/fractal.nix
+++ b/hosts/common/programs/fractal.nix
@@ -1,61 +1,12 @@
-# Fractal: GTK4 instant messenger client for the Matrix protocol
-#
-# very susceptible to state corruption during hard power-cycles.
-# if it stalls while launching, especially with a brief message at bottom
-# "unable to open store"
-# then:
-# - remove ~/.local/share/stable/*
-#   - this might give I/O error, in which case remove the corresponding path under
-#     /nix/persist/home/colin/private (which can be found by correlating timestamps/sizes with that in ~/private/.local/share/stable).
-# - reboot (maybe necessary).
-# - now you can send messages, and read messages in unencrypted rooms, but not read messages from encrypted rooms.
-# to fix encrypted message receipt:
-# - start from above (fractal closed, no ~/.local/share/stable/*)
-# - in ~/.local/share/keyrings/Default_keyring.keyring:
-#   - find the entry that says "display-name=Fractal: Matrix credentials for <mxid>"
-#   - remove that entry and all associated entries (i.e. ones with same number but different :attributeN)
-#   - REBOOT. otherwise keyring stuff seems to stay cached in RAM
-#   - login to Fractal. give an hour to sync.
-#   - it'll kick you back to a page asking you to cross-sign. open FluffyChat and do the emoji compare. success!
-{ config, lib, pkgs, ... }:
-let
-  cfg = config.sane.programs.fractal;
-in
+{ pkgs, ... }:
 {
  sane.programs.fractal = {
-    package = pkgs.fractal-nixified;
    # package = pkgs.fractal-latest;
-    # package = pkgs.fractal-next;
+    package = pkgs.fractal-next;

-    configOption = with lib; mkOption {
-      default = {};
-      type = types.submodule {
-        options.autostart = mkOption {
-          type = types.bool;
-          default = true;
-        };
-      };
-    };
-
-    persist.byStore.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
-      ".local/share/fractal" # for version 5+, i think?
-    ];
+    # XXX by default fractal stores its state in ~/.local/share/stable/<UUID>.
+    persist.private = [ ".local/share/stable" ];

    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";
-    };
  };
 }
--- a/hosts/common/programs/g4music.nix
+++ b/hosts/common/programs/g4music.nix
@@ -1,16 +0,0 @@
-# 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.byStore.plaintext = [
-      # index?
-      ".cache/com.github.neithern.g4music"
-    ];
-  };
-}
--- a/hosts/common/programs/gajim.nix
+++ b/hosts/common/programs/gajim.nix
@@ -1,13 +0,0 @@
-{ ... }:
-{
-  sane.programs.gajim = {
-    persist.byStore.private = [
-      # avatars, thumbnails...
-      ".cache/gajim"
-      # sqlite database labeled "settings". definitely includes UI theming
-      ".config/gajim"
-      # omemo keys, downloads, logs
-      ".local/share/gajim"
-    ];
-  };
-}
--- a/hosts/common/programs/geary.nix
+++ b/hosts/common/programs/geary.nix
@@ -1,82 +0,0 @@
-# geary is a gtk3 email client.
-# outstanding issues:
-# - it uses webkitgtk_4_1, which is expensive to build.
-#   could be upgraded to webkitgtk latest if upgraded to gtk4
-#   <https://gitlab.gnome.org/GNOME/geary/-/issues/1212>
-{ config, lib, ... }:
-let
-  cfg = config.sane.programs."gnome.geary";
-in
-{
-  sane.programs."gnome.geary" = {
-    configOption = with lib; mkOption {
-      default = {};
-      type = types.submodule {
-        options.autostart = mkOption {
-          type = types.bool;
-          default = false;
-        };
-      };
-    };
-
-    slowToBuild = true;  # uses webkitgtk 4.1
-    persist.byStore.private = [
-      # attachments, and email -- contained in a sqlite db
-      ".local/share/geary"
-      # also `.cache/geary/web-resources`, which tends to stay << 1 MiB
-    ];
-    fs.".config/geary/account_01/geary.ini".symlink.text = ''
-      [Metadata]
-      version=1
-      status=enabled
-
-      [Account]
-      ordinal=2
-      label=
-      # 14 = "fetch last 14d of mail every time i connect"
-      # -1 = "fetch *all* mail"
-      prefetch_days=-1
-      save_drafts=true
-      save_sent=true
-      use_signature=false
-      signature=
-      sender_mailboxes=colin@uninsane.org;
-      service_provider=other
-
-      [Folders]
-      archive_folder=Archive;
-      drafts_folder=
-      sent_folder=
-      junk_folder=
-      trash_folder=
-
-      [Incoming]
-      login=colin
-      remember_password=true
-      host=imap.uninsane.org
-      port=993
-      transport_security=transport
-      credentials=custom
-
-      [Outgoing]
-      remember_password=true
-      host=mx.uninsane.org
-      port=465
-      transport_security=transport
-      credentials=use-incoming
-    '';
-    secrets.".config/geary/account_02/geary.ini" = ../../../secrets/common/geary_account_02.ini.bin;
-
-    services.geary = {
-      description = "Geary email client";
-      wantedBy = lib.mkIf cfg.config.autostart [ "default.target" ];
-      serviceConfig = {
-        ExecStart = "${cfg.package}/bin/geary";
-        Type = "simple";
-        Restart = "always";
-        RestartSec = "20s";
-      };
-    };
-  };
-
-}
--- a/hosts/common/programs/gnome-weather.nix
+++ b/hosts/common/programs/gnome-weather.nix
@@ -1,10 +0,0 @@
-# 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.byStore.plaintext = [
-      ".cache/libgweather"
-    ];
-  };
-}
--- a/hosts/common/programs/gpodder.nix
+++ b/hosts/common/programs/gpodder.nix
@@ -1,5 +1,4 @@
-# help:
-# - #gpodder on irc.libera.chat
+# gnome feeds RSS viewer
 { config, pkgs, sane-lib, ... }:

 let
@@ -8,22 +7,12 @@ let
  wanted-feeds = feeds.filterByFormat ["podcast"] all-feeds;
 in {
  sane.programs.gpodder = {
-    package = pkgs.gpodder-adaptive-configured.overrideAttrs (base: {
-      # environment variables:
-      # - GPODDER_HOME (defaults to "~/gPodder")
-      # - GPODDER_DOWNLOAD_DIR (defaults to "$GPODDER_HOME/Downloads")
-      # - GPODDER_WRITE_LOGS ("yes" or "no")
-      # - GPODDER_EXTENSIONS
-      # - GPODDER_DISABLE_EXTENSIONS ("yes" or "no")
-      extraMakeWrapperArgs = (base.extraMakeWrapperArgs or []) ++ [
-        "--set" "GPODDER_HOME" "~/.local/share/gPodder"
-      ];
-    });
+    package = pkgs.gpodder-adaptive-configured;
    # package = pkgs.gpodder-configured;
    fs.".config/gpodderFeeds.opml".symlink.text = feeds.feedsToOpml wanted-feeds;

    # XXX: we preserve the whole thing because if we only preserve gPodder/Downloads
    #   then startup is SLOW during feed import, and we might end up with zombie eps in the dl dir.
-    persist.byStore.plaintext = [ ".local/share/gPodder" ];
+    persist.plaintext = [ "gPodder" ];
  };
 }
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Colin	89bb784f3d	cross: fix emulateBuilder to use build bash in the vmRunCommand	2023-08-05 09:40:36 +00:00
Colin	5596250d5b	cross: fix `enableParallelBuilding` to work	2023-08-05 09:33:24 +00:00
Colin	30c205a617	build bonsai/hare/qbe without relying on binfmt emulation	2023-08-05 09:33:24 +00:00