cross: flatpak: fix via nixpkgs patch instead of overlay

it still prompts the user to allow it, but i'll fix that later i guess

TODO.md

@@ -2,20 +2,22 @@
 - `rmDbusServices` may break sandboxing
   - e.g. if the package ships a systemd unit which references $out, then make-sandboxed won't properly update that unit.
   - `rmDbusServicesInPlace` is not affected
-- when moby wlan is explicitly set down (via ip link set wlan0 down), /var/lib/trust-dns/dhcp-configs doesn't get reset
+- when moby wlan is explicitly set down (via ip link set wlan0 down), /var/lib/hickory-dns/dhcp-configs doesn't get reset
   - `ip monitor` can detect those manual link state changes (NM-dispatcher it seems cannot)
   - or try dnsmasq?
-- trust-dns: can't recursively resolve api.mangadex.org
+- hickory-dns can't resolve `abs.twimg.com`
-  - and *sometimes* apple.com fails
+- hickory-dns can't resolve `social.kernel.org`
+- hickory-dns can't resolve `pe.usps.com`
+- hickory-dns can't resolve `social.seattle.wa.us`
+- hickory-dns can't resolve `support.mozilla.org`
 - sandbox: link cache means that if i update ~/.config/... files inline, sandboxed programs still see the old version
+- mpv: continues to play past the end of some audio files
 - mpv: audiocast has mpv sending its output to the builtin speakers unless manually changed
-- mpv: no way to exit fullscreen video on moby
-  - uosc hides controls on FS, and touch doesn't support unhiding
-- Signal restart loop drains battery
-  - decrease s6 restart time?
 - `ssh` access doesn't grant same linux capabilities as login
-- ringer (i.e. dino incoming call) doesn't prevent moby from sleeping
+- syshud (volume overlay): when casting with `blast`, syshud doesn't react to volume changes
-- sysvol (volume overlay): when casting with `blast`, sysvol doesn't react to volume changes
+- moby: after bringing the modem up, powering it down loses *complete* net connectivity (i.e. wlan is gone as well)
+- dissent: if i launch it without net connectivity, it gets stuck at the login, and never tries again
+- calls: seems that it starts before net access, and then is forever disconnected (until i manually restart it)
 - moby: kaslr is effectively disabled
   - `dmesg | grep "KASLR disabled due to lack of seed"`
   - fix by adding `kaslrseed` to uboot script before `booti`
@@ -26,12 +28,21 @@
   - `dmesg | grep 'hid_bpf: error while preloading HID BPF dispatcher: -22'`
 - `s6` is not re-entrant
   - so if the desktop crashes, the login process from `unl0kr` fails to re-launch the GUI
+- newflash on moby can't play videos
+  - "open in browser" works though -- in mpv
+- gnome-maps can't use geoclue *and* openstreetmap at the same time
+  - get gnome-maps to speak xdg-desktop-portal, and this will be fixed
+- epiphany can't save cookies
+  - see under "preferences", cookies are disabled
+  - prevents logging into websites (OpenStreetMap)
+  - works when sandbox is disabled
 
 ## REFACTORING:
 - add import checks to my Python nix-shell scripts
 - consolidate ~/dev and ~/ref
   - ~/dev becomes a link to ~/ref/cat/mine
 - fold hosts/common/home/ssh.nix -> hosts/common/users/colin.nix
+- don't hardcode IP addresses so much in servo
 
 ### sops/secrets
 - rework secrets to leverage `sane.fs`
@@ -51,20 +62,26 @@
 
 
 ## IMPROVEMENTS:
-- systemd/journalctl: use a less shit pager
-  - there's an env var for it: SYSTEMD_PAGER? and a flag for journalctl
 - kernels: ship the same kernel on every machine
   - then i can tune the kernels for hardening, without duplicating that work 4 times
 - zfs: replace this with something which doesn't require a custom kernel build
 - mpv: add media looping controls (e.g. loop song, loop playlist)
+- curlftpfs: replace with something better
+  - safer (rust? actively maintained? sandboxable?)
+  - handles spaces/symbols in filenames
+  - has better multi-stream perf (e.g. `sane-sync-music` should be able to copy N items in parallel)
+- firefox: open *all* links (http, https, ...) with system handler
+  - removes the need for open-in-mpv, firefox-xdg-open, etc.
+  - matrix room links *just work*.
+  - `network.protocol-handler.external.https = true` in about:config *seems* to do this,
+    but breaks some webpages (e.g. Pleroma)
 
 ### security/resilience
-- validate duplicity backups!
+- enable `snapper` btrfs snapshots (`services.snapper`)
-- encrypt more ~ dirs (~/archives, ~/records, ..?)
-  - best to do this after i know for sure i have good backups
 - /mnt/desko/home, etc, shouldn't include secrets (~/private)
   - 95% of its use is for remote media access and stuff which isn't in VCS (~/records)
 - port all sane.programs to be sandboxed
+  - sandbox `nix`
   - enforce that all `environment.packages` has a sandbox profile (or explicitly opts out)
   - revisit "non-sandboxable" apps and check that i'm not actually just missing mountpoints
     - LL_FS_RW=/ isn't enough -- need all mount points like `=/:/proc:/sys:...`.
@@ -73,26 +90,17 @@
   - lock down dbus calls within the sandbox
     - otherwise anyone can `systemd-run --user ...` to potentially escape a sandbox
     - <https://github.com/flatpak/xdg-dbus-proxy>
-  - remove `.ssh` access from Firefox!
-    - limit access to `~/knowledge/secrets` through an agent that requires GUI approval, so a firefox exploit can't steal all my logins
   - port sanebox to a compiled language (hare?)
     - it adds like 50-70ms launch time _on my laptop_. i'd hate to know how much that is on the pinephone.
 - make dconf stuff less monolithic
   - i.e. per-app dconf profiles for those which need it. possible static config.
   - flatpak/spectrum has some stuff to proxy dconf per-app
-- canaries for important services
-  - e.g. daily email checks; daily backup checks
-  - integrate `nix check` into Gitea actions?
 
 ### user experience
 - rofi: sort items case-insensitively
-- xdg-desktop-portal shouldn't kill children on exit
-  - *maybe* a job for `setsid -f`?
 - replace starship prompt with something more efficient
   - watch `forkstat`: it does way too much
 - cleanup waybar/nwg-panel so that it's not invoking playerctl every 2 seconds
-  - nwg-panel: swaync icon is stuck as the refresh icon
-  - nwg-panel: doesn't appear on all desktops
   - nwg-panel: doesn't know that virtual-desktop 10/TV exists
 - install apps:
   - display QR codes for WiFi endpoints: <https://linuxphoneapps.org/apps/noappid.wisperwind.wifi2qr/>
@@ -101,7 +109,7 @@
   - 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)?
+  - better maps for mobile (Osmin (QtQuick)? Pure Maps (Qt/Kirigami)?)
   - note-taking app: <https://linuxphoneapps.org/categories/note-taking/>
     - Folio is nice, uses standard markdown, though it only supports flat repos
   - OSK overlay specifically for mobile gaming
@@ -119,20 +127,17 @@
 
 #### moby
 - fix cpuidle (gets better power consumption): <https://xnux.eu/log/077.html>
+- fix cpupower for better power/perf
+  - `journalctl -u cpupower --boot` (problem is present on lappy, at least)
 - moby: tune keyboard layout
-- SwayNC:
+- SwayNC: add option to change audio output
-  - don't show MPRIS if no players detected
-    - this is a problem of playerctld, i guess
-  - add option to change audio output
-  - fix colors (red alert) to match overall theme
 - moby: tune GPS
-  - run only geoclue, and not gpsd, to save power?
+  - fix iio-sensor-proxy magnetometer scaling
   - 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?
+  - manually do smoothing, as some layer between mepo and geoclue?
+  - email wigle.net people to unlock API access
 - moby: port `freshen-agps` timer service to s6 (maybe i want some `s6-cron` or something)
-- moby: show battery state on ssh login
 - moby: improve gPodder launch time
 - moby: theme GTK apps (i.e. non-adwaita styles)
   - especially, make the menubar collapsible
@@ -141,6 +146,8 @@
 #### non-moby
 - RSS: integrate a paywall bypass
   - e.g. self-hosted [ladder](https://github.com/everywall/ladder) (like 12ft.io)
+- RSS: have podcasts get downloaded straight into ~/Videos/...
+  - and strip the ads out using Whisper transcription + asking a LLM where the ad breaks are
 - neovim: set up language server (lsp; rnix-lsp; nvim-lspconfig)
 - neovim: integrate LLMs
 - Helix: make copy-to-system clipboard be the default
@@ -153,17 +160,15 @@
 - 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?
+- transmission: apply `sane-tag-media` path fix in `torrent-done` script
+  - many .mkv files do appear to be tagged: i'd just need to add support in my own tooling
 - 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
   - could change junk filter from "no DKIM success" to explicit "DKIM failed"
+  - add an auto-reply address (e.g. `reply-test@uninsane.org`) which reflects all incoming mail; use this (or a friend running this) for liveness checks
 
 ### perf
-- debug nixos-rebuild times
-  - use `systemctl list-jobs` to show what's being waited on
-  - i think it's `systemd-networkd-wait-online.service` that's blocking this?
-    - i wonder what interface it's waiting for. i should use `--ignore=...` to ignore interfaces i don't care about.
-  - also `wireguard-wg-home.target` when net is offline
 - 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!

default.nix

@@ -1,67 +1,5 @@
-# limited, non-flake interface to this repo.
+{ ... }@args:
-# 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`
-{ }:
 let
-  mkPkgs = args: (import ./pkgs/additional/nixpkgs args).extend
+  sane-nix-files = import ./pkgs/additional/sane-nix-files { };
-    (import ./overlays/all.nix);
+in
-  inherit (mkPkgs {}) lib;
+  import "${sane-nix-files}/impure.nix" args
-
-  evalHost = { name, system, branch ? "master", variant ? null }:
-  let
-    pkgs = mkPkgs { inherit system; variant = branch; };
-  in pkgs.nixos (
-    [
-      (lib.optionalAttrs (variant == "light") {
-        sane.maxBuildCost = 2;
-      })
-      (lib.optionalAttrs (variant == "min") {
-        sane.maxBuildCost = 0;
-      })
-      (import ./hosts/instantiate.nix { hostName = name; })
-      (import ./modules)
-      pkgs.sops-nix.nixosModules.sops
-    ]
-  );
-  mkFlavoredHost = args: let
-    host = evalHost args;
-    # expose the toplevel nixos system as the toplevel attribute itself,
-    # with nested aliases for other common build targets
-  in host.config.system.build.toplevel.overrideAttrs (base: {
-    passthru = (base.passthru or {}) // {
-      config = host.config;
-      fs = host.config.sane.fs;
-      img = host.config.system.build.img;
-      pkgs = host.config.system.build.pkgs;
-      programs = lib.mapAttrs (_: p: p.package) host.config.sane.programs;
-      toplevel = host.config.system.build.toplevel;  #< self
-    };
-  });
-  mkHost = args: {
-    # TODO: swap order: $host-{next,staging}-{min,light}:
-    # then lexicographically-adjacent targets would also have the minimal difference in closure,
-    # and the order in which each target should be built is more evident
-    "${args.name}" = mkFlavoredHost args;
-    "${args.name}-next" = mkFlavoredHost args // { branch = "staging-next"; };
-    "${args.name}-staging" = mkFlavoredHost args // { branch = "staging"; };
-    "${args.name}-light" = mkFlavoredHost args // { variant = "light"; };
-    "${args.name}-light-next" = mkFlavoredHost args // { variant = "light"; branch = "staging-next"; };
-    "${args.name}-light-staging" = mkFlavoredHost args // { variant = "light"; branch = "staging"; };
-    "${args.name}-min" = mkFlavoredHost args // { variant = "min"; };
-    "${args.name}-min-next" = mkFlavoredHost args // { variant = "min"; branch = "staging-next"; };
-    "${args.name}-min-staging" = mkFlavoredHost args // { variant = "min"; branch = "staging-staging"; };
-  };
-
-  hosts = lib.foldl' (acc: host: acc // (mkHost host)) {} [
-    { name = "crappy"; system = "armv7l-linux";  }
-    { name = "desko";  system = "x86_64-linux";  }
-    { name = "lappy";  system = "x86_64-linux";  }
-    { name = "moby";   system = "aarch64-linux"; }
-    { name = "rescue"; system = "x86_64-linux";  }
-    { name = "servo";  system = "x86_64-linux";  }
-  ];
-in {
-  inherit hosts;
-} // (mkPkgs {})

hosts/by-name/crappy/default.nix

@@ -16,7 +16,7 @@
   sane.programs.calls.enableFor.user.colin = false;
   sane.programs.consoleMediaUtils.enableFor.user.colin = true;
   sane.programs.epiphany.enableFor.user.colin = true;
-  sane.programs."gnome.geary".enableFor.user.colin = false;
+  sane.programs.geary.enableFor.user.colin = false;
   # sane.programs.firefox.enableFor.user.colin = true;
   sane.programs.portfolio-filemanager.enableFor.user.colin = true;
   sane.programs.signal-desktop.enableFor.user.colin = false;
@@ -25,6 +25,7 @@
   sane.programs.dino.config.autostart = false;
   sane.programs.dissent.config.autostart = false;
   sane.programs.fractal.config.autostart = false;
+  sane.programs.sway.config.mod = "Mod1";  #< alt key instead of Super
 
   # sane.programs.guiApps.enableFor.user.colin = false;
 

hosts/by-name/desko/default.nix

@@ -4,15 +4,19 @@
     ./fs.nix
   ];
 
-  sane.services.trust-dns.asSystemResolver = false;  # TEMPORARY: TODO: re-enable trust-dns
+  sane.services.hickory-dns.asSystemResolver = false;  # TEMPORARY: TODO: re-enable hickory-dns
   # sane.programs.devPkgs.enableFor.user.colin = true;
   # sane.guest.enable = true;
 
   # don't enable wifi by default: it messes with connectivity.
   # systemd.services.iwd.enable = false;
+  # networking.wireless.enable = false;
   # systemd.services.wpa_supplicant.enable = false;
-  sane.programs.wpa_supplicant.enableFor.user.colin = lib.mkForce false;
+  # sane.programs.wpa_supplicant.enableFor.user.colin = lib.mkForce false;
-  sane.programs.wpa_supplicant.enableFor.system = lib.mkForce false;
+  # sane.programs.wpa_supplicant.enableFor.system = lib.mkForce false;
+  # don't auto-connect to wifi networks
+  # see: <https://networkmanager.dev/docs/api/latest/NetworkManager.conf.html#device-spec>
+  networking.networkmanager.unmanaged = [ "type:wifi" ];
 
   sops.secrets.colin-passwd.neededForUsers = true;
 
@@ -24,15 +28,18 @@
   sane.services.wg-home.ip = config.sane.hosts.by-name."desko".wg-home.ip;
   sane.ovpn.addrV4 = "172.26.55.21";
   # sane.ovpn.addrV6 = "fd00:0000:1337:cafe:1111:1111:20c1:a73c";
-  sane.services.duplicity.enable = true;
+  sane.services.rsync-net.enable = true;
 
   sane.nixcache.remote-builders.desko = false;
 
+  sane.programs.sane-private-unlock-remote.enableFor.user.colin = true;
+  sane.programs.sane-private-unlock-remote.config.hosts = [ "servo" ];
+
   sane.programs.sway.enableFor.user.colin = true;
   sane.programs.iphoneUtils.enableFor.user.colin = true;
   sane.programs.steam.enableFor.user.colin = true;
 
-  sane.programs."gnome.geary".config.autostart = true;
+  sane.programs.geary.config.autostart = true;
   sane.programs.signal-desktop.config.autostart = true;
 
   sane.programs.nwg-panel.config = {
@@ -45,15 +52,18 @@
   # needed to use libimobiledevice/ifuse, for iphone sync
   services.usbmuxd.enable = true;
 
+  # TODO: enable snapper (need to make `/nix` or `/nix/persist` a subvolume, somehow).
   # default config: https://man.archlinux.org/man/snapper-configs.5
   # defaults to something like:
   #   - hourly snapshots
   #   - auto cleanup; keep the last 10 hourlies, last 10 daylies, last 10 monthlys.
-  services.snapper.configs.nix = {
+  # to list snapshots: `sudo snapper --config nix list`
-    # TODO: for the impermanent setup, we'd prefer to just do /nix/persist,
+  # to take a snapshot: `sudo snapper --config nix create`
-    # but that also requires setting up the persist dir as a subvol
+  # services.snapper.configs.nix = {
-    SUBVOLUME = "/nix";
+  #   # TODO: for the impermanent setup, we'd prefer to just do /nix/persist,
-    # TODO: ALLOW_USERS doesn't seem to work. still need `sudo snapper -c nix list`
+  #   # but that also requires setting up the persist dir as a subvol
-    ALLOW_USERS = [ "colin" ];
+  #   SUBVOLUME = "/nix";
-  };
+  #   # TODO: ALLOW_USERS doesn't seem to work. still need `sudo snapper -c nix list`
+  #   ALLOW_USERS = [ "colin" ];
+  # };
 }

hosts/by-name/lappy/default.nix

@@ -15,22 +15,31 @@
   # sane.guest.enable = true;
   sane.image.extraBootFiles = [ pkgs.bootpart-uefi-x86_64 ];
 
+  sane.programs.sane-private-unlock-remote.enableFor.user.colin = true;
+  sane.programs.sane-private-unlock-remote.config.hosts = [ "servo" ];
+
   sane.programs.stepmania.enableFor.user.colin = true;
   sane.programs.sway.enableFor.user.colin = true;
 
-  sane.programs."gnome.geary".config.autostart = true;
+  sane.programs.geary.config.autostart = true;
   sane.programs.signal-desktop.config.autostart = true;
 
   sops.secrets.colin-passwd.neededForUsers = true;
 
+  sane.services.rsync-net.enable = true;
+
+  # TODO: enable snapper (need to make `/nix` or `/nix/persist` a subvolume, somehow).
   # default config: https://man.archlinux.org/man/snapper-configs.5
   # defaults to something like:
   #   - hourly snapshots
   #   - auto cleanup; keep the last 10 hourlies, last 10 daylies, last 10 monthlys.
-  services.snapper.configs.nix = {
+  # to list snapshots: `sudo snapper --config nix list`
-    # TODO: for the impermanent setup, we'd prefer to just do /nix/persist,
+  # to take a snapshot: `sudo snapper --config nix create`
-    # but that also requires setting up the persist dir as a subvol
+  # services.snapper.configs.nix = {
-    SUBVOLUME = "/nix";
+  #   # TODO: for the impermanent setup, we'd prefer to just do /nix/persist,
-    ALLOW_USERS = [ "colin" ];
+  #   # but that also requires setting up the persist dir as a subvol
-  };
+  #   SUBVOLUME = "/nix";
+  #   # TODO: ALLOW_USERS doesn't seem to work. still need `sudo snapper -c nix list`
+  #   ALLOW_USERS = [ "colin" ];
+  # };
 }

hosts/by-name/moby/default.nix

@@ -10,7 +10,6 @@
 {
   imports = [
     ./fs.nix
-    ./gps.nix
   ];
 
   sane.hal.pine64.enable = true;
@@ -24,11 +23,13 @@
   # XXX colin: phosh doesn't work well with passwordless login,
   # so set this more reliable default password should anything go wrong
   users.users.colin.initialPassword = "147147";
-  # services.getty.autologinUser = "root";  # allows for emergency maintenance?
 
   sops.secrets.colin-passwd.neededForUsers = true;
 
+  sane.services.rsync-net.enable = true;
+
   sane.programs.sway.enableFor.user.colin = true;
+  sane.programs.sway.config.mod = "Mod1";  #< alt key instead of Super
   sane.programs.blueberry.enableFor.user.colin = false;  # bluetooth manager: doesn't cross compile!
   sane.programs.fcitx5.enableFor.user.colin = false;  # does not cross compile
   sane.programs.mercurial.enableFor.user.colin = false;  # does not cross compile
@@ -36,12 +37,12 @@
 
   # enabled for easier debugging
   sane.programs.eg25-control.enableFor.user.colin = true;
-  sane.programs.rtl8723cs-wowlan.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;  # TODO: enable once electron stops derping.
+  sane.programs.signal-desktop.config.autostart = true;
-  # sane.programs."gnome.geary".config.autostart = true;
+  # sane.programs.geary.config.autostart = true;
   # sane.programs.calls.config.autostart = true;
 
   sane.programs.pipewire.config = {

hosts/by-name/moby/gps.nix

@@ -1,68 +0,0 @@
-# pinephone GPS happens in EG25 modem
-# serial control interface to modem is /dev/ttyUSB2
-# after enabling GPS, readout is /dev/ttyUSB1
-#
-# minimal process to enable modem and GPS:
-# - `echo 1 > /sys/class/modem-power/modem-power/device/powered`
-# - `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
-#
-# 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.
-#
-# support/help:
-# - geoclue, gnome-maps
-#   - irc: #gnome-maps on irc.gimp.org
-#   - Matrix: #gnome-maps:gnome.org  (unclear if bridged to IRC)
-#
-# programs to pair this with:
-# - `satellite-gtk`: <https://codeberg.org/tpikonen/satellite>
-#   - shows/tracks which satellites the GPS is connected to; useful to understand fix characteristics
-# - `gnome-maps`: uses geoclue, has route planning
-# - `mepo`: uses gpsd, minimalist, flaky, and buttons are kinda hard to activate on mobile
-# - puremaps?
-# - osmin?
-#
-# known/outstanding bugs:
-# - `systemctl start eg25-control-gps` can the hang the whole system (2023/10/06)
-#   - i think it's actually `eg25-control-powered` which does this (started by the gps)
-#   - best guess is modem draws so much power at launch that other parts of the system see undervoltage
-#   - workaround is to hard power-cycle the system. the modem may not bring up after reboot: leave unpowered for 60s and boot again.
-#
-# future work:
-# - integrate with [wigle](https://www.wigle.net/) for offline equivalent to Mozilla Location Services
-
-{ config, lib, ... }:
-{
-  # test gpsd with `gpspipe -w -n 10 2> /dev/null | grep -m 1 TPV | jq '.lat, .lon' | tr '\n' ' '`
-  # ^ should return <lat> <long>
-  services.gpsd.enable = true;
-  services.gpsd.devices = [ "/dev/ttyUSB1" ];
-
-  # 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.programs.where-am-i.enableFor.user.colin = true;
-}

hosts/by-name/servo/default.nix

@@ -7,22 +7,21 @@
     ./services
   ];
 
-  sane.programs = {
+  # for administering services
-    # for administering services
+  sane.programs.clightning-sane.enableFor.user.colin = true;
-    freshrss.enableFor.user.colin = true;
+  # sane.programs.freshrss.enableFor.user.colin = true;
-    matrix-synapse.enableFor.user.colin = true;
+  # sane.programs.signaldctl.enableFor.user.colin = true;
-    signaldctl.enableFor.user.colin = true;
+  # sane.programs.matrix-synapse.enableFor.user.colin = true;
-  };
 
   sane.roles.build-machine.enable = true;
-  sane.programs.zsh.config.showDeadlines = false;  # ~/knowledge doesn't always exist
+  sane.programs.sane-deadlines.config.showOnLogin = false;  # ~/knowledge doesn't always exist
   sane.programs.consoleUtils.suggestedPrograms = [
     "consoleMediaUtils"  # notably, for go2tv / casting
     "pcConsoleUtils"
     "sane-scripts.stop-all-servo"
   ];
   sane.services.dyn-dns.enable = true;
-  sane.services.trust-dns.asSystemResolver = false;  # TODO: enable once it's all working well
+  sane.services.hickory-dns.asSystemResolver = false;  # TODO: enable once it's all working well
   sane.services.wg-home.enable = true;
   sane.services.wg-home.visibleToWan = true;
   sane.services.wg-home.forwardToWan = true;
@@ -32,11 +31,12 @@
   # sane.ovpn.addrV6 = "fd00:0000:1337:cafe:1111:1111:8df3:14b0";
   sane.nixcache.remote-builders.desko = false;
   sane.nixcache.remote-builders.servo = false;
-  # sane.services.duplicity.enable = true;  # TODO: re-enable after HW upgrade
+  sane.services.rsync-net.enable = true;
 
   # automatically log in at the virtual consoles.
-  # using root here makes sure we always have an escape hatch
+  # using root here makes sure we always have an escape hatch.
-  services.getty.autologinUser = "root";
+  # XXX(2024-07-27): this is incompatible with my s6-rc stuff, which needs to auto-login as `colin` to start its user services.
+  # services.getty.autologinUser = "root";
 
   sane.image.extraBootFiles = [ pkgs.bootpart-uefi-x86_64 ];
 

hosts/by-name/servo/fs.nix

@@ -14,7 +14,7 @@
 # show zfs datasets: `zfs list` (will be empty if haven't imported)
 # show zfs properties (e.g. compression): `zfs get all pool`
 # set zfs properties: `zfs set compression=on pool`
-{ ... }:
+{ lib, pkgs, ... }:
 
 {
   # hostId: not used for anything except zfs guardrail?
@@ -54,7 +54,7 @@
     options = [ "acl" ];  #< not sure if this `acl` flag is actually necessary. it mounts without it.
   };
   # services.zfs.zed = ... # TODO: zfs can send me emails when disks fail
-  sane.programs.sysadminUtils.suggestedPrograms = [ "zfs" ];
+  sane.programs.sysadminUtils.suggestedPrograms = [ "zfs-tools" ];
 
   sane.persist.stores."ext" = {
     origin = "/mnt/pool/persist";
@@ -131,6 +131,20 @@
     the contents should be a subset of what's in ../media/datasets.
   '';
 
+  systemd.services.dedupe-media = {
+    description = "transparently de-duplicate /var/media entries by using block-level hardlinks";
+    script = ''
+      ${lib.getExe' pkgs.util-linux "hardlink"} /var/media --reflink=always --ignore-time --verbose
+    '';
+  };
+  systemd.timers.dedupe-media = {
+    wantedBy = [ "multi-user.target" ];
+    timerConfig = {
+      OnStartupSec = "23min";
+      OnUnitActiveSec = "720min";
+    };
+  };
+
   # btrfs doesn't easily support swapfiles
   # swapDevices = [
   #   { device = "/nix/persist/swapfile"; size = 4096; }

hosts/by-name/servo/net.nix

@@ -30,6 +30,14 @@ in
 
   config = {
     networking.domain = "uninsane.org";
+    systemd.network.networks."50-eth0" = {
+      matchConfig.Name = "eth0";
+      networkConfig.Address = [
+        "205.201.63.12/32"
+        "10.78.79.51/22"
+      ];
+      networkConfig.DNS = [ "10.78.79.1" ];
+    };
 
     sane.ports.openFirewall = true;
     sane.ports.openUpnp = true;

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

@@ -1,34 +0,0 @@
-{ config, lib, ... }:
-
-let
-  cweb-cfg = config.services.calibre-web;
-  inherit (cweb-cfg) user group;
-  inherit (cweb-cfg.listen) ip port;
-  svc-dir = "/var/lib/${cweb-cfg.dataDir}";
-in
-# XXX: disabled because of runtime errors like:
-# > File "/nix/store/c7jqvx980nlg9xhxi065cba61r2ain9y-calibre-web-0.6.19/lib/python3.10/site-packages/calibreweb/cps/db.py", line 926, in speaking_language
-# > languages = self.session.query(Languages) \
-# > AttributeError: 'NoneType' object has no attribute 'query'
-lib.mkIf false
-{
-  sane.persist.sys.byStore.plaintext = [
-    { inherit user group; mode = "0700"; path = svc-dir; method = "bind"; }
-  ];
-
-  services.calibre-web.enable = true;
-  services.calibre-web.listen.ip = "127.0.0.1";
-  # XXX: externally populate `${svc-dir}/metadata.db` (once) from
-  #   <https://github.com/janeczku/calibre-web/blob/master/library/metadata.db>
-  # i don't know why you have to do this??
-  # services.calibre-web.options.calibreLibrary = svc-dir;
-
-  services.nginx.virtualHosts."calibre.uninsane.org" = {
-    forceSSL = true;
-    enableACME = true;
-    locations."/" = {
-      proxyPass = "http://${ip}:${builtins.toString port}";
-    };
-  };
-  sane.dns.zones."uninsane.org".inet.CNAME."calibre" = "native";
-}

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

@@ -36,7 +36,8 @@
 #   - rb = received bytes
 #   - sp = sent packets
 #   - sb = sent bytes
-{ lib, ... }:
+
+{ config, lib, ... }:
 let
   # TURN port range (inclusive).
   # default coturn behavior is to use the upper quarter of all ports. i.e. 49152 - 65535.
@@ -130,11 +131,11 @@ in
     "verbose"
     # "Verbose"  #< even MORE verbosity than "verbose"  (it's TOO MUCH verbosity really)
     "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"  #< 2024/04/25: works, if running in root namespace
+    # "listening-ip=${config.sane.netns.ovpns.hostVethIpv4}" "external-ip=${config.sane.netns.ovpns.netnsPubIpv4}"  #< 2024/04/25: works, if running in root namespace
-    "listening-ip=185.157.162.178" "external-ip=185.157.162.178"
+    "listening-ip=${config.sane.netns.ovpns.netnsPubIpv4}" "external-ip=${config.sane.netns.ovpns.netnsPubIpv4}"
 
     # old attempts:
-    # "external-ip=185.157.162.178/10.0.1.5"
+    # "external-ip=${config.sane.netns.ovpns.netnsPubIpv4}/${config.sane.netns.ovpns.hostVethIpv4}"
     # "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"

hosts/by-name/servo/services/cryptocurrencies/bitcoin.nix

@@ -16,14 +16,17 @@
 # - validate with `bitcoin-cli -netinfo`
 { config, lib, pkgs, sane-lib, ... }:
 let
+  # bitcoind = config.sane.programs.bitcoind.packageUnwrapped;
+  bitcoind = pkgs.bitcoind;
   # wrapper to run bitcoind with the tor onion address as externalip (computed at runtime)
-  _bitcoindWithExternalIp = with pkgs; writeShellScriptBin "bitcoind" ''
+  _bitcoindWithExternalIp = pkgs.writeShellScriptBin "bitcoind" ''
+    set -xeu
     externalip="$(cat /var/lib/tor/onion/bitcoind/hostname)"
     exec ${bitcoind}/bin/bitcoind "-externalip=$externalip" "$@"
   '';
   # the package i provide to services.bitcoind ends up on system PATH, and used by other tools like clightning.
   # therefore, even though services.bitcoind only needs `bitcoind` binary, provide all the other bitcoin-related binaries (notably `bitcoin-cli`) as well:
-  bitcoindWithExternalIp = with pkgs; symlinkJoin {
+  bitcoindWithExternalIp = pkgs.symlinkJoin {
     name = "bitcoind-with-external-ip";
     paths = [ _bitcoindWithExternalIp bitcoind ];
   };
@@ -61,23 +64,62 @@ in
       passwordHMAC = "30002c05d82daa210550e17a182db3f3$6071444151281e1aa8a2729f75e3e2d224e9d7cac3974810dab60e7c28ffaae4";
     };
     extraConfig = ''
+      # checkblocks: default 6: how many blocks to verify on start
+      checkblocks=3
       # don't load the wallet, and disable wallet RPC calls
       disablewallet=1
       # proxy all outbound traffic through Tor
       proxy=127.0.0.1:9050
     '';
+    extraCmdlineOptions = [
+      # "-debug"
+      # "-debug=estimatefee"
+      # "-debug=http"
+      # "-debug=net"
+      "-debug=proxy"
+      "-debug=rpc"
+      # "-debug=validation"
+    ];
   };
 
   users.users.bitcoind-mainnet.extraGroups = [ "tor" ];
 
-  systemd.services.bitcoind-mainnet.serviceConfig.RestartSec = "30s";  #< default is 0
+  systemd.services.bitcoind-mainnet = {
+    after = [ "tor.service" ];
+    requires = [ "tor.service" ];
+    serviceConfig.RestartSec = "30s";  #< default is 0
+
+    # hardening (systemd-analyze security bitcoind-mainnet)
+    serviceConfig.StateDirectory = "bitcoind-mainnet";
+    serviceConfig.LockPersonality = true;
+    serviceConfig.MemoryDenyWriteExecute = "true";
+    serviceConfig.NoNewPrivileges = "true";
+    serviceConfig.PrivateDevices = "true";
+    serviceConfig.PrivateMounts = true;
+    serviceConfig.PrivateTmp = "true";
+    serviceConfig.PrivateUsers = true;
+    serviceConfig.ProcSubset = "pid";
+    serviceConfig.ProtectControlGroups = true;
+    serviceConfig.ProtectHome = true;
+    serviceConfig.ProtectHostname = true;
+    serviceConfig.ProtectKernelLogs = true;
+    serviceConfig.ProtectKernelModules = true;
+    serviceConfig.ProtectKernelTunables = true;
+    serviceConfig.ProtectProc = "invisible";
+    serviceConfig.ProtectSystem = lib.mkForce "strict";
+    serviceConfig.RemoveIPC = true;
+    serviceConfig.RestrictAddressFamilies = "AF_UNIX AF_INET AF_INET6";
+    serviceConfig.RestrictNamespaces = true;
+    serviceConfig.RestrictSUIDSGID = true;
+    serviceConfig.SystemCallArchitectures = "native";
+    serviceConfig.SystemCallFilter = [ "@system-service" ];
+  };
 
-  sane.users.colin.fs.".bitcoin/bitcoin.conf" = sane-lib.fs.wantedSymlinkTo config.sops.secrets."bitcoin.conf".path;
   sops.secrets."bitcoin.conf" = {
     mode = "0600";
     owner = "colin";
     group = "users";
   };
 
-  sane.programs.bitcoind.enableFor.user.colin = true;  # for debugging/administration: `bitcoin-cli`
+  sane.programs.bitcoin-cli.enableFor.user.colin = true;  # for debugging/administration: `bitcoin-cli`
 }

hosts/by-name/servo/services/cryptocurrencies/clightning.nix

@@ -72,13 +72,11 @@
 
 { config, pkgs, ... }:
 {
-  sane.persist.sys.byStore.ext = [
+  sane.persist.sys.byStore.private = [
+    # clightning takes up only a few MB. but then several hundred MB of crash logs that i should probably GC.
     { user = "clightning"; group = "clightning"; mode = "0710"; path = "/var/lib/clightning"; method = "bind"; }
   ];
 
-  # `lightning-cli` finds its RPC file via `~/.lightning/bitcoin/lightning-rpc`, to message the daemon
-  sane.user.fs.".lightning".symlink.target = "/var/lib/clightning";
-
   # see bitcoin.nix for how to generate this
   services.bitcoind.mainnet.rpc.users.clightning.passwordHMAC =
     "befcb82d9821049164db5217beb85439$2c31ac7db3124612e43893ae13b9527dbe464ab2d992e814602e7cb07dc28985";
@@ -105,6 +103,7 @@
   users.users.clightning.extraGroups = [ "tor" ];
 
   systemd.services.clightning.after = [ "tor.service" ];
+  systemd.services.clightning.requires = [ "tor.service" ];
 
   # lightning-config contains fields from here:
   # - <https://docs.corelightning.org/docs/configuration>
@@ -116,11 +115,16 @@
   # - fee-per-satoshi=<ppm>
   # - feature configs (i.e. experimental-xyz options)
   sane.services.clightning.extraConfig = ''
-    log-level=debug:lightningd
+    # log levels: "io", "debug", "info", "unusual", "broken"
+    log-level=info
+    # log-level=info:lightningd
+    # log-level=debug:lightningd
+    # log-level=debug
+
     # peerswap:
     # - config example: <https://github.com/fort-nix/nix-bitcoin/pull/462/files#diff-b357d832705b8ce8df1f41934d613f79adb77c4cd5cd9e9eb12a163fca3e16c6>
     # XXX: peerswap crashes clightning on launch. stacktrace is useless.
-    # plugin=${pkgs.peerswap}/bin/peerswap
+    # plugin={pkgs.peerswap}/bin/peerswap
     # peerswap-db-path=/var/lib/clightning/peerswap/swaps
     # peerswap-policy-path=...
   '';
@@ -131,5 +135,5 @@
     group = "clightning";
   };
 
-  sane.programs.clightning.enableFor.user.colin = true;  # for debugging/admin: `lightning-cli`
+  sane.programs.lightning-cli.enableFor.user.colin = true;  # for debugging/admin:
 }

hosts/by-name/servo/services/cryptocurrencies/i2p.nix

@@ -1,4 +1,5 @@
-{ ... }:
+{ lib, ... }:
+lib.mkIf false  #< 2024/07/27: i don't use it, too much surface-area for me to run it pro-bono (`systemd-analyze security monero`)
 {
   services.i2p.enable = true;
 }

hosts/by-name/servo/services/cryptocurrencies/monero.nix

@@ -1,5 +1,6 @@
 # as of 2023/11/26: complete downloaded blockchain should be 200GiB on disk, give or take.
-{ ... }:
+{ lib, ... }:
+lib.mkIf false  #< 2024/07/27: i don't use it, too much surface-area for me to run it pro-bono (`systemd-analyze security monero`)
 {
   sane.persist.sys.byStore.ext = [
     # /var/lib/monero/lmdb is what consumes most of the space

hosts/by-name/servo/services/cryptocurrencies/tor.nix

@@ -1,10 +1,10 @@
 # tor settings: <https://2019.www.torproject.org/docs/tor-manual.html.en>
 { lib, ... }:
 {
-  # tor hidden service hostnames aren't deterministic, so persist.
+  sane.persist.sys.byStore.ephemeral = [
-  # might be able to get away with just persisting /var/lib/tor/onion, not sure.
+    # N.B.: tor hidden service hostnames aren't deterministic, so if you need them
-  sane.persist.sys.byStore.plaintext = [
+    # to be preserved across reboots then persist /var/lib/tor/onion in "private" store.
-    { user = "tor"; group = "tor"; mode = "0710"; path = "/var/lib/tor"; method = "bind"; }
+   { user = "tor"; group = "tor"; mode = "0710"; path = "/var/lib/tor"; method = "bind"; }
   ];
 
   # tor: `tor.enable` doesn't start a relay, exit node, proxy, etc. it's minimal.

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

@@ -1,17 +1,17 @@
 { ... }:
 {
   imports = [
-    ./calibre.nix
     ./coturn.nix
     ./cryptocurrencies
     ./email
     ./ejabberd.nix
     ./freshrss.nix
     ./export
+    ./hickory-dns.nix
     ./gitea.nix
     ./goaccess.nix
     ./ipfs.nix
-    ./jackett.nix
+    ./jackett
     ./jellyfin.nix
     ./kiwix-serve.nix
     ./komga.nix
@@ -21,13 +21,13 @@
     ./nginx.nix
     ./nixos-prebuild.nix
     ./ntfy
+    ./ollama.nix
     ./pict-rs.nix
     ./pleroma.nix
     ./postgres.nix
     ./prosody
     ./slskd.nix
-    ./transmission.nix
+    ./transmission
-    ./trust-dns.nix
     ./wikipedia.nix
   ];
 }

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

@@ -44,61 +44,61 @@ in
 # everything configured below was fine: used ejabberd for several months.
 lib.mkIf false
 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.byStore.private = [
     { user = "ejabberd"; group = "ejabberd"; path = "/var/lib/ejabberd"; method = "bind"; }
   ];
   sane.ports.ports = lib.mkMerge ([
     {
       "3478" = {
         protocol = [ "tcp" "udp" ];
+        visibleTo.doof = true;
         visibleTo.lan = true;
-        visibleTo.wan = true;
         description = "colin-xmpp-stun-turn";
       };
       "5222" = {
         protocol = [ "tcp" ];
+        visibleTo.doof = true;
         visibleTo.lan = true;
-        visibleTo.wan = true;
         description = "colin-xmpp-client-to-server";
       };
       "5223" = {
         protocol = [ "tcp" ];
+        visibleTo.doof = true;
         visibleTo.lan = true;
-        visibleTo.wan = true;
         description = "colin-xmpps-client-to-server";  # XMPP over TLS
       };
       "5269" = {
         protocol = [ "tcp" ];
-        visibleTo.wan = true;
+        visibleTo.doof = true;
         description = "colin-xmpp-server-to-server";
       };
       "5270" = {
         protocol = [ "tcp" ];
-        visibleTo.wan = true;
+        visibleTo.doof = true;
         description = "colin-xmpps-server-to-server";  # XMPP over TLS
       };
       "5280" = {
         protocol = [ "tcp" ];
+        visibleTo.doof = true;
         visibleTo.lan = true;
-        visibleTo.wan = true;
         description = "colin-xmpp-bosh";
       };
       "5281" = {
         protocol = [ "tcp" ];
+        visibleTo.doof = true;
         visibleTo.lan = true;
-        visibleTo.wan = true;
         description = "colin-xmpp-bosh-https";
       };
       "5349" = {
         protocol = [ "tcp" ];
+        visibleTo.doof = true;
         visibleTo.lan = true;
-        visibleTo.wan = true;
         description = "colin-xmpp-stun-turn-over-tls";
       };
       "5443" = {
         protocol = [ "tcp" ];
+        visibleTo.doof = true;
         visibleTo.lan = true;
-        visibleTo.wan = true;
         description = "colin-xmpp-web-services";  # file uploads, websockets, admin
       };
     }
@@ -109,8 +109,8 @@ lib.mkIf false
         numPorts = turnPortHigh - turnPortLow + 1;
       in {
         protocol = [ "tcp" "udp" ];
+        visibleTo.doof = true;
         visibleTo.lan = true;
-        visibleTo.wan = true;
         description = "colin-xmpp-turn-${builtins.toString count}-of-${builtins.toString numPorts}";
       };
     })

hosts/by-name/servo/services/email/dovecot.nix

@@ -8,14 +8,14 @@
 {
   sane.ports.ports."143" = {
     protocol = [ "tcp" ];
+    visibleTo.doof = true;
     visibleTo.lan = true;
-    visibleTo.wan = true;
     description = "colin-imap-imap.uninsane.org";
   };
   sane.ports.ports."993" = {
     protocol = [ "tcp" ];
+    visibleTo.doof = true;
     visibleTo.lan = true;
-    visibleTo.wan = true;
     description = "colin-imaps-imap.uninsane.org";
   };
 
@@ -83,8 +83,8 @@
     #   sieve_plugins = sieve_imapsieve
     # }
 
-    mail_debug = yes
+    # mail_debug = yes
-    auth_debug = yes
+    # auth_debug = yes
     # verbose_ssl = yes
   '';
 

hosts/by-name/servo/services/email/postfix.nix

@@ -1,6 +1,13 @@
 # postfix config options: <https://www.postfix.org/postconf.5.html>
+# config files:
+# - /etc/postfix/main.cf
+# - /etc/postfix/master.cf
+#
+# logs:
+# - postfix logs directly to *syslog*,
+#   so check e.g. ~/.local/share/rsyslog
 
-{ lib, pkgs, ... }:
+{ config, lib, pkgs, ... }:
 
 let
   submissionOptions = {
@@ -18,14 +25,14 @@ let
   };
 in
 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.byStore.private = [
     # TODO: mode? could be more granular
-    { user = "opendkim"; group = "opendkim"; path = "/var/lib/opendkim"; method = "bind"; }
+    { user = "opendkim"; group = "opendkim"; path = "/var/lib/opendkim"; method = "bind"; }  #< TODO: migrate to secrets
-    { user = "root"; group = "root"; path = "/var/lib/postfix"; method = "bind"; }
     { user = "root"; group = "root"; path = "/var/spool/mail"; method = "bind"; }
     # *probably* don't need these dirs:
     # "/var/lib/dhparams"          # https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/security/dhparams.nix
     # "/var/lib/dovecot"
+    # "/var/lib/postfix"
   ];
 
   # XXX(2023/10/20): opening these ports in the firewall has the OPPOSITE effect as intended.
@@ -56,8 +63,7 @@ in
 
   sane.dns.zones."uninsane.org".inet = {
     MX."@" = "10 mx.uninsane.org.";
-    # XXX: RFC's specify that the MX record CANNOT BE A CNAME
+    A."mx" = "%AOVPNS%"; #< XXX: RFC's specify that the MX record CANNOT BE A CNAME. TODO: use "%AOVPNS%?
-    A."mx" = "185.157.162.178";
 
     # Sender Policy Framework:
     #   +mx     => mail passes if it originated from the MX
@@ -96,6 +102,7 @@ in
   services.postfix.sslCert = "/var/lib/acme/mx.uninsane.org/fullchain.pem";
   services.postfix.sslKey = "/var/lib/acme/mx.uninsane.org/key.pem";
 
+  # see: `man 5 virtual`
   services.postfix.virtual = ''
     notify.matrix@uninsane.org matrix-synapse
     @uninsane.org colin
@@ -136,6 +143,20 @@ in
     # smtpd_sender_restrictions = reject_unknown_sender_domain
   };
 
+  # debugging options:
+  # services.postfix.masterConfig = {
+  #   "proxymap".args = [ "-v" ];
+  #   "proxywrite".args = [ "-v" ];
+  #   "relay".args = [ "-v" ];
+  #   "smtp".args = [ "-v" ];
+  #   "smtp_inet".args = [ "-v" ];
+  #   "submission".args = [ "-v" ];
+  #   "submissions".args = [ "-v" ];
+  #   "submissions".chroot = false;
+  #   "submissions".private = false;
+  #   "submissions".privileged = true;
+  # };
+
   services.postfix.enableSubmission = true;
   services.postfix.submissionOptions = submissionOptions;
   services.postfix.enableSubmissions = true;
@@ -143,6 +164,10 @@ in
 
   systemd.services.postfix.after = [ "wireguard-wg-ovpns.service" ];
   systemd.services.postfix.partOf = [ "wireguard-wg-ovpns.service" ];
+  systemd.services.postfix.unitConfig.RequiresMountsFor = [
+    "/var/spool/mail"  # spooky errors when postfix is run w/o this: `warning: connect #1 to subsystem private/proxymap: Connection refused`
+    "/var/lib/opendkim"
+  ];
   systemd.services.postfix.serviceConfig = {
     # run this behind the OVPN static VPN
     NetworkNamespacePath = "/run/netns/ovpns";
@@ -176,23 +201,30 @@ in
 
 
   #### OUTGOING MESSAGE REWRITING:
-  services.postfix.enableHeaderChecks = true;
+  # - `man 5 header_checks`
-  services.postfix.headerChecks = [
+  #   - <https://www.postfix.org/header_checks.5.html>
-    # intercept gitea registration confirmations and manually screen them
+  # - populates `/var/lib/postfix/conf/header_checks`
-    {
+  # XXX(2024-08-06): registration gating via email matches is AWFUL:
-      # headerChecks are somehow ignorant of alias rules: have to redirect to a real user
+  # 1. bypassed if the service offers localization.
-      action = "REDIRECT colin@uninsane.org";
+  # 2. if i try to forward the registration request, it may match the filter again and get sent back to my inbox.
-      pattern = "/^Subject: Please activate your account/";
+  # 3. header checks are possibly under-used in the ecosystem, and may break postfix config.
-    }
+  # services.postfix.enableHeaderChecks = true;
-    # intercept Matrix registration confirmations
+  # services.postfix.headerChecks = [
-    {
+  #   # intercept gitea registration confirmations and manually screen them
-      action = "REDIRECT colin@uninsane.org";
+  #   {
-      pattern = "/^Subject:.*Validate your email/";
+  #     # headerChecks are somehow ignorant of alias rules: have to redirect to a real user
-    }
+  #     action = "REDIRECT colin@uninsane.org";
-    # XXX postfix only supports performing ONE action per header.
+  #     pattern = "/^Subject: Please activate your account/";
-    # {
+  #   }
-    #   action = "REPLACE Subject: git application: Please activate your account";
+  #   # intercept Matrix registration confirmations
-    #   pattern = "/^Subject:.*activate your account/";
+  #   {
-    # }
+  #     action = "REDIRECT colin@uninsane.org";
-  ];
+  #     pattern = "/^Subject:.*Validate your email/";
+  #   }
+  #   # XXX postfix only supports performing ONE action per header.
+  #   # {
+  #   #   action = "REPLACE Subject: git application: Please activate your account";
+  #   #   pattern = "/^Subject:.*activate your account/";
+  #   # }
+  # ];
 }

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

@@ -37,7 +37,8 @@
     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
+      - playground/    read-write: use it to share files with other users of this server, inaccessible from the www
+      - pub/           read-only:  content made to be shared with the www
     '';
   };
 
@@ -50,4 +51,11 @@
       - be a friendly troll
     '';
   };
+
+  sane.fs."/var/export/.public_for_test/test" = {
+    wantedBy = [ "nfs.service" "sftpgo.service" ];
+    file.text = ''
+      automated tests read this file to probe connectivity
+    '';
+  };
 }

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

@@ -9,10 +9,10 @@
 
 { config, lib, pkgs, sane-lib, ... }:
 let
-  external_auth_hook = pkgs.static-nix-shell.mkPython3Bin {
+  external_auth_hook = pkgs.static-nix-shell.mkPython3 {
     pname = "external_auth_hook";
     srcRoot = ./.;
-    pyPkgs = [ "passlib" ];
+    pkgs = [ "python3.pkgs.passlib" ];
   };
   # 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
@@ -27,13 +27,12 @@ in
     "21" = {
       protocol = [ "tcp" ];
       visibleTo.lan = true;
-      # visibleTo.wan = true;
       description = "colin-FTP server";
     };
     "990" = {
       protocol = [ "tcp" ];
+      visibleTo.doof = true;
       visibleTo.lan = true;
-      visibleTo.wan = true;
       description = "colin-FTPS server";
     };
   } // (sane-lib.mapToAttrs
@@ -41,8 +40,8 @@ in
       name = builtins.toString port;
       value = {
         protocol = [ "tcp" ];
+        visibleTo.doof = true;
         visibleTo.lan = true;
-        visibleTo.wan = true;
         description = "colin-FTP server data port range";
       };
     })
@@ -81,12 +80,6 @@ in
             port = 21;
             debug = true;
           }
-          {
-            # binding this means any LAN client can connect (also WAN traffic forwarded from the gateway)
-            address = "10.78.79.51";
-            port = 21;
-            debug = true;
-          }
           {
             # binding this means any wireguard client can connect
             address = "10.0.10.5";
@@ -97,6 +90,26 @@ in
           {
             # binding this means any LAN client can connect (also WAN traffic forwarded from the gateway)
             address = "10.78.79.51";
+            port = 21;
+            debug = true;
+          }
+          {
+            # binding this means any LAN client can connect (also WAN traffic forwarded from the gateway)
+            address = "10.78.79.51";
+            port = 990;
+            debug = true;
+            tls_mode = 2;  # 2 = "implicit FTPS": client negotiates TLS before any FTP command.
+          }
+          {
+            # binding this means any doof client can connect (TLS only)
+            address = config.sane.netns.doof.hostVethIpv4;
+            port = 990;
+            debug = true;
+            tls_mode = 2;  # 2 = "implicit FTPS": client negotiates TLS before any FTP command.
+          }
+          {
+            # binding this means any LAN client can connect via `ftp.uninsane.org` (TLS only)
+            address = config.sane.netns.doof.netnsPubIpv4;
             port = 990;
             debug = true;
             tls_mode = 2;  # 2 = "implicit FTPS": client negotiates TLS before any FTP command.
@@ -117,7 +130,7 @@ in
         banner = ''
           Welcome, friends, to Colin's FTP server! Also available via NFS on the same host, but LAN-only.
 
-          Read-only access (LAN-restricted):
+          Read-only access (LAN clients see everything; WAN clients can only see /pub):
           Username: "anonymous"
           Password: "anonymous"
 

hosts/by-name/servo/services/export/sftpgo/external_auth_hook

@@ -1,5 +1,5 @@
 #!/usr/bin/env nix-shell
-#!nix-shell -i python3 -p "python3.withPackages (ps: [ ps.passlib ])"
+#!nix-shell -i python3 -p python3 -p python3.pkgs.passlib
 # vim: set filetype=python :
 #
 # available environment variables:
@@ -45,6 +45,8 @@ from hmac import compare_digest
 
 authFail = dict(username="")
 
+PERM_DENY = []
+PERM_LIST = [ "list" ]
 PERM_RO = [ "list", "download" ]
 PERM_RW = [
   # read-only:
@@ -127,12 +129,14 @@ def getAuthResponse(ip: str, username: str, password: str) -> dict:
     return mkAuthOk(username, permissions = {
       "/": PERM_RW,
       "/playground": PERM_RW,
+      "/.public_for_test": PERM_RO,
     })
   if isWireguard(ip):
     # allow any user from wireguard
     return mkAuthOk(username, permissions = {
       "/": PERM_RW,
       "/playground": PERM_RW,
+      "/.public_for_test": PERM_RO,
     })
   if isLan(ip):
     if username == "anonymous":
@@ -140,7 +144,19 @@ def getAuthResponse(ip: str, username: str, password: str) -> dict:
       return mkAuthOk("anonymous", permissions = {
         "/": PERM_RO,
         "/playground": PERM_RW,
+        "/.public_for_test": PERM_RO,
       })
+  if username == "anonymous":
+    # anonymous users from the www can have even more limited access.
+    # mostly because i need an easy way to test WAN connectivity :-)
+    return mkAuthOk("anonymous", permissions = {
+      # "/": PERM_DENY,
+      "/": PERM_LIST,  #< REQUIRED, even for lftp to list a subdir
+      "/media": PERM_DENY,
+      "/playground": PERM_DENY,
+      "/.public_for_test": PERM_RO,
+      # "/README.md": PERM_RO,  #< does not work
+    })
 
   return authFail
 

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

@@ -10,6 +10,7 @@
 # ```
 
 { config, lib, pkgs, sane-lib, ... }:
+lib.mkIf false  #< 2024/07/04: i haven't actively used this for months
 {
   sops.secrets."freshrss_passwd" = {
     owner = config.users.users.freshrss.name;

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

@@ -1,11 +1,14 @@
 # config options: <https://docs.gitea.io/en-us/administration/config-cheat-sheet/>
+# TODO: service shouldn't run as `git` user, but as `gitea`
 { config, pkgs, lib, ... }:
 
 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.byStore.private = [
-    # TODO: mode? could be more granular
+    { user = "git"; group = "gitea"; mode = "0750"; path = "/var/lib/gitea"; method = "bind"; }
-    { user = "git"; group = "gitea"; path = "/var/lib/gitea"; method = "bind"; }
   ];
+
+  sane.programs.gitea.enableFor.user.colin = true;  # for admin, and monitoring
+
   services.gitea.enable = true;
   services.gitea.user = "git";  # default is 'gitea'
   services.gitea.database.type = "postgres";
@@ -38,17 +41,24 @@
       ROOT_URL = "https://git.uninsane.org/";
     };
     service = {
-      # timeout for email approval. 5760 = 4 days
+      # timeout for email approval. 5760 = 4 days. 10080 = 7 days
-      ACTIVE_CODE_LIVE_MINUTES = 5760;
+      ACTIVE_CODE_LIVE_MINUTES = 10080;
       # REGISTER_EMAIL_CONFIRM = false;
-      # REGISTER_MANUAL_CONFIRM = true;
+      # REGISTER_EMAIL_CONFIRM = true;  #< override REGISTER_MANUAL_CONFIRM
-      REGISTER_EMAIL_CONFIRM = true;
+      REGISTER_MANUAL_CONFIRM = true;
-      # not sure what this notified on?
+      # not sure what this notifies *on*...
       ENABLE_NOTIFY_MAIL = true;
       # defaults to image-based captcha.
       # also supports recaptcha (with custom URLs) or hCaptcha.
       ENABLE_CAPTCHA = true;
       NOREPLY_ADDRESS = "noreply.anonymous.git@uninsane.org";
+      EMAIL_DOMAIN_BLOCKLIST = lib.concatStringsSep ", " [
+        "*.claychoen.top"
+        "*.gemmasmith.co.uk"
+        "*.jenniferlawrence.uk"
+        "*.sarahconnor.co.uk"
+        "*.marymarshall.co.uk"
+      ];
     };
     session = {
       COOKIE_SECURE = true;
@@ -64,8 +74,8 @@
       SHOW_FOOTER_TEMPLATE_LOAD_TIME = false;
     };
     ui = {
-      # options: "auto", "gitea", "arc-green"
+      # options: "gitea-auto" (adapt to system theme), "gitea-dark", "gitea-light"
-      DEFAULT_THEME = "arc-green";
+      # DEFAULT_THEME = "gitea-auto";
       # cache frontend assets if true
       # USE_SERVICE_WORKER = true;
     };
@@ -74,9 +84,10 @@
       # alternative is to use nixos-level config:
       # services.gitea.mailerPasswordFile = ...
       ENABLED = true;
-      MAILER_TYPE = "sendmail";
       FROM = "notify.git@uninsane.org";
+      PROTOCOL = "sendmail";
       SENDMAIL_PATH = "${pkgs.postfix}/bin/sendmail";
+      SENDMAIL_ARGS = "--";  # most "sendmail" programs take options, "--" will prevent an email address being interpreted as an option.
     };
     time = {
       # options: ANSIC, UnixDate, RubyDate, RFC822, RFC822Z, RFC850, RFC1123, RFC1123Z, RFC3339, RFC3339Nano, Kitchen, Stamp, StampMilli, StampMicro, StampNano
@@ -108,6 +119,10 @@
     locations."/" = {
       proxyPass = "http://127.0.0.1:3000";
     };
+    # fuck you @anthropic
+    locations."= /robots.txt".extraConfig = ''
+      return 200 "User-agent: *\nDisallow: /\n";
+    '';
     # gitea serves all `raw` files as content-type: plain, but i'd like to serve them as their actual content type.
     # or at least, enough to make specific pages viewable (serving unoriginal content as arbitrary content type is dangerous).
     locations."~ ^/colin/phone-case-cq/raw/.*.html" = {
@@ -133,7 +148,7 @@
   sane.ports.ports."22" = {
     protocol = [ "tcp" ];
     visibleTo.lan = true;
-    visibleTo.wan = true;
+    visibleTo.doof = true;
     description = "colin-git@git.uninsane.org";
   };
 }

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

@@ -0,0 +1,145 @@
+# TODO: split this file apart into smaller files to make it easier to understand
+{ config, lib, pkgs, ... }:
+
+let
+  dyn-dns = config.sane.services.dyn-dns;
+  nativeAddrs = lib.mapAttrs (_name: builtins.head) config.sane.dns.zones."uninsane.org".inet.A;
+in
+{
+  sane.ports.ports."53" = {
+    protocol = [ "udp" "tcp" ];
+    visibleTo.lan = true;
+    # visibleTo.wan = true;
+    visibleTo.ovpns = true;
+    visibleTo.doof = true;
+    description = "colin-dns-hosting";
+  };
+
+  sane.dns.zones."uninsane.org".TTL = 900;
+
+  # SOA record structure: <https://en.wikipedia.org/wiki/SOA_record#Structure>
+  # SOA MNAME RNAME (... rest)
+  # MNAME = Master name server for this zone. this is where update requests should be sent.
+  # RNAME = admin contact (encoded email address)
+  # Serial = YYYYMMDDNN, where N is incremented every time this file changes, to trigger secondary NS to re-fetch it.
+  # Refresh = how frequently secondary NS should query master
+  # Retry = how long secondary NS should wait until re-querying master after a failure (must be < Refresh)
+  # Expire = how long secondary NS should continue to reply to queries after master fails (> Refresh + Retry)
+  sane.dns.zones."uninsane.org".inet = {
+    SOA."@" = ''
+      ns1.uninsane.org. admin-dns.uninsane.org. (
+                                      2023092101 ; Serial
+                                      4h         ; Refresh
+                                      30m        ; Retry
+                                      7d         ; Expire
+                                      5m)        ; Negative response TTL
+    '';
+    TXT."rev" = "2023092101";
+
+    CNAME."native" = "%CNAMENATIVE%";
+    A."@" =      "%ANATIVE%";
+    A."servo.wan" = "%AWAN%";
+    A."servo.doof" = "%ADOOF%";
+    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.
+    # so, org. can specify ns2/ns3 as being to the VPN, with no mention of ns1. we provide ns1 here.
+    A."ns1" =    "%ANATIVE%";
+    A."ns2" =    "%ADOOF%";
+    A."ovpns" =  "%AOVPNS%";
+    NS."@" = [
+      "ns1.uninsane.org."
+      "ns2.uninsane.org."
+    ];
+  };
+
+  services.hickory-dns.settings.zones = [ "uninsane.org" ];
+
+
+  networking.nat.enable = true;  #< TODO: try removing this?
+  # networking.nat.extraCommands = ''
+  #   # redirect incoming DNS requests from LAN addresses
+  #   #   to the LAN-specialized DNS service
+  #   # N.B.: use the `nixos-*` chains instead of e.g. PREROUTING
+  #   #   because they get cleanly reset across activations or `systemctl restart firewall`
+  #   #   instead of accumulating cruft
+  #   iptables -t nat -A nixos-nat-pre -p udp --dport 53 \
+  #     -m iprange --src-range 10.78.76.0-10.78.79.255 \
+  #     -j DNAT --to-destination :1053
+  #   iptables -t nat -A nixos-nat-pre -p tcp --dport 53 \
+  #     -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";
+  # };
+
+
+  sane.services.hickory-dns.enable = true;
+  sane.services.hickory-dns.instances = let
+    mkSubstitutions = flavor: {
+      "%ADOOF%" = config.sane.netns.doof.netnsPubIpv4;
+      "%ANATIVE%" = nativeAddrs."servo.${flavor}";
+      "%AOVPNS%" = config.sane.netns.ovpns.netnsPubIpv4;
+      "%AWAN%" = "$(cat '${dyn-dns.ipPath}')";
+      "%CNAMENATIVE%" = "servo.${flavor}";
+    };
+  in
+  {
+    doof = {
+      substitutions = mkSubstitutions "doof";
+      listenAddrsIpv4 = [
+        config.sane.netns.doof.hostVethIpv4
+        config.sane.netns.doof.netnsPubIpv4
+        nativeAddrs."servo.lan"
+        # config.sane.netns.ovpns.hostVethIpv4
+      ];
+    };
+    hn = {
+      substitutions = mkSubstitutions "hn";
+      listenAddrsIpv4 = [ nativeAddrs."servo.hn" ];
+      enableRecursiveResolver = true;  #< allow wireguard clients to use this as their DNS resolver
+      # extraConfig = {
+      #   zones = [
+      #     {
+      #       # forward the root zone to the local DNS resolver
+      #       # to allow wireguard clients to use this as their DNS resolver
+      #       zone = ".";
+      #       zone_type = "Forward";
+      #       stores = {
+      #         type = "forward";
+      #         name_servers = [
+      #           {
+      #             socket_addr = "127.0.0.53:53";
+      #             protocol = "udp";
+      #             trust_nx_responses = true;
+      #           }
+      #         ];
+      #       };
+      #     }
+      #   ];
+      # };
+    };
+    # lan = {
+    #   substitutions = mkSubstitutions "lan";
+    #   listenAddrsIpv4 = [ nativeAddrs."servo.lan" ];
+    #   # port = 1053;
+    # };
+    # wan = {
+    #   substitutions = mkSubstitutions "wan";
+    #   listenAddrsIpv4 = [
+    #     nativeAddrs."servo.lan"
+    #   ];
+    # };
+  };
+
+  sane.services.dyn-dns.restartOnChange = lib.map (c: "${c.service}.service") (builtins.attrValues config.sane.services.hickory-dns.instances);
+}

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.byStore.private = [
     # TODO: mode? could be more granular
     { user = "261"; group = "261"; path = "/var/lib/ipfs"; method = "bind"; }
   ];

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

@@ -1,36 +0,0 @@
-{ lib, pkgs, ... }:
-
-lib.mkIf false  #< TODO: re-enable once confident of sandboxing
-{
-  sane.persist.sys.byStore.plaintext = [
-    # TODO: mode? we only need this to save Indexer creds ==> migrate to config?
-    { user = "root"; group = "root"; path = "/var/lib/jackett"; method = "bind"; }
-  ];
-  services.jackett.enable = true;
-
-  systemd.services.jackett.after = [ "wireguard-wg-ovpns.service" ];
-  systemd.services.jackett.partOf = [ "wireguard-wg-ovpns.service" ];
-  systemd.services.jackett.serviceConfig = {
-    # run this behind the OVPN static VPN
-    NetworkNamespacePath = "/run/netns/ovpns";
-    ExecStartPre = [ "${lib.getExe pkgs.sane-scripts.ip-check} --no-upnp --expect 185.157.162.178" ];  # abort if public IP is not as expected
-
-    # patch jackett to listen on the public interfaces
-    # ExecStart = lib.mkForce "${pkgs.jackett}/bin/Jackett --NoUpdates --DataFolder /var/lib/jackett/.config/Jackett --ListenPublic";
-  };
-
-  # jackett torrent search
-  services.nginx.virtualHosts."jackett.uninsane.org" = {
-    forceSSL = true;
-    enableACME = true;
-    # inherit kTLS;
-    locations."/" = {
-      # proxyPass = "http://ovpns.uninsane.org:9117";
-      proxyPass = "http://10.0.1.6:9117";
-      recommendedProxySettings = true;
-    };
-  };
-
-  sane.dns.zones."uninsane.org".inet.CNAME."jackett" = "native";
-}
-

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

@@ -0,0 +1,68 @@
+{ config, lib, pkgs, ... }:
+
+let
+  cfg = config.services.jackett;
+in
+{
+  sane.persist.sys.byStore.private = [
+    # TODO: mode? we only need this to save Indexer creds ==> migrate to config?
+    { user = "jackett"; group = "jackett"; path = "/var/lib/jackett"; method = "bind"; }
+  ];
+  services.jackett.enable = true;
+
+  systemd.services.jackett.after = [ "wireguard-wg-ovpns.service" ];
+  systemd.services.jackett.partOf = [ "wireguard-wg-ovpns.service" ];
+  systemd.services.jackett = {
+    # run this behind the OVPN static VPN
+    serviceConfig.NetworkNamespacePath = "/run/netns/ovpns";
+    serviceConfig.ExecStartPre = [ "${lib.getExe pkgs.sane-scripts.ip-check} --no-upnp --expect ${config.sane.netns.ovpns.netnsPubIpv4}" ];  # abort if public IP is not as expected
+    # patch in `--ListenPublic` so that it's reachable from the netns veth.
+    # this also makes it reachable from the VPN pub address. oh well.
+    serviceConfig.ExecStart = lib.mkForce "${cfg.package}/bin/Jackett --ListenPublic --NoUpdates --DataFolder '${cfg.dataDir}'";
+    serviceConfig.RestartSec = "30s";
+
+    # hardening (systemd-analyze security jackett)
+    # TODO: upstream into nixpkgs
+    serviceConfig.StateDirectory = "jackett";
+    serviceConfig.LockPersonality = true;
+    serviceConfig.NoNewPrivileges = true;
+    # serviceConfig.MemoryDenyWriteExecute = true;  #< Failed to create CoreCLR, HRESULT: 0x80004005
+    serviceConfig.PrivateDevices = true;
+    serviceConfig.PrivateMounts = true;
+    serviceConfig.PrivateTmp = true;
+    serviceConfig.PrivateUsers = true;
+    serviceConfig.ProcSubset = "pid";
+    serviceConfig.ProtectClock = true;
+    serviceConfig.ProtectControlGroups = true;
+    serviceConfig.ProtectHome = true;
+    serviceConfig.ProtectHostname = true;
+    serviceConfig.ProtectKernelLogs = true;
+    serviceConfig.ProtectKernelModules = true;
+    serviceConfig.ProtectKernelTunables = true;
+    serviceConfig.ProtectProc = "invisible";
+    serviceConfig.ProtectSystem = "strict";
+    serviceConfig.RemoveIPC = true;
+    serviceConfig.RestrictAddressFamilies = "AF_UNIX AF_INET AF_INET6";
+    serviceConfig.RestrictNamespaces = true;
+    serviceConfig.RestrictSUIDSGID = true;
+    serviceConfig.SystemCallArchitectures = "native";
+    serviceConfig.SystemCallFilter = [ "@system-service" "~@privileged" ];
+  };
+
+  # jackett torrent search
+  services.nginx.virtualHosts."jackett.uninsane.org" = {
+    forceSSL = true;
+    enableACME = true;
+    # inherit kTLS;
+    locations."/" = {
+      proxyPass = "http://${config.sane.netns.ovpns.netnsVethIpv4}:9117";
+      recommendedProxySettings = true;
+    };
+    locations."= /robots.txt".extraConfig = ''
+      return 200 "User-agent: *\nDisallow: /\n";
+    '';
+  };
+
+  sane.dns.zones."uninsane.org".inet.CNAME."jackett" = "native";
+}
+

hosts/by-name/servo/services/kiwix-serve.nix

@@ -21,6 +21,9 @@
     enableACME = true;
     # inherit kTLS;
     locations."/".proxyPass = "http://127.0.0.1:8013";
+    locations."= /robots.txt".extraConfig = ''
+      return 200 "User-agent: *\nDisallow: /\n";
+    '';
   };
 
   sane.dns.zones."uninsane.org".inet.CNAME."w" = "native";

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

@@ -17,6 +17,9 @@ in
     locations."/" = {
       proxyPass = "http://127.0.0.1:${builtins.toString port}";
     };
+    locations."= /robots.txt".extraConfig = ''
+      return 200 "User-agent: *\nDisallow: /\n";
+    '';
   };
   sane.dns.zones."uninsane.org".inet.CNAME."komga" = "native";
 }

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

@@ -38,14 +38,10 @@ in {
     nginx.enable = true;
   };
 
-  systemd.services.lemmy.serviceConfig = {
-    # fix to use a normal user so we can configure perms correctly
-    DynamicUser = mkForce false;
-    User = "lemmy";
-    Group = "lemmy";
-  };
   systemd.services.lemmy.environment = {
     RUST_BACKTRACE = "full";
+    RUST_LOG = "error";
+    # RUST_LOG = "warn";
     # RUST_LOG = "debug";
     # RUST_LOG = "trace";
     # upstream defaults LEMMY_DATABASE_URL = "postgres:///lemmy?host=/run/postgresql";
@@ -72,6 +68,73 @@ in {
 
   sane.dns.zones."uninsane.org".inet.CNAME."lemmy" = "native";
 
+  systemd.services.lemmy = {
+    # fix to use a normal user so we can configure perms correctly
+    # XXX(2024-07-28): this hasn't been rigorously tested:
+    # possible that i've set something too strict and won't notice right away
+    serviceConfig.DynamicUser = mkForce false;
+    serviceConfig.User = "lemmy";
+    serviceConfig.Group = "lemmy";
+
+    # hardening (systemd-analyze security lemmy)
+    # a handful of these are specified in upstream nixpkgs, but mostly not
+    serviceConfig.LockPersonality = true;
+    serviceConfig.NoNewPrivileges = true;
+    serviceConfig.MemoryDenyWriteExecute = true;
+    serviceConfig.PrivateDevices = true;
+    serviceConfig.PrivateMounts = true;
+    serviceConfig.PrivateTmp = true;
+    serviceConfig.PrivateUsers = true;
+    serviceConfig.ProcSubset = "pid";
+
+    serviceConfig.ProtectClock = true;
+    serviceConfig.ProtectControlGroups = true;
+    serviceConfig.ProtectHome = true;
+    serviceConfig.ProtectHostname = true;
+    serviceConfig.ProtectKernelLogs = true;
+    serviceConfig.ProtectKernelModules = true;
+    serviceConfig.ProtectKernelTunables = true;
+    serviceConfig.ProtectProc = "invisible";
+    serviceConfig.ProtectSystem = "strict";
+    serviceConfig.RemoveIPC = true;
+    serviceConfig.RestrictAddressFamilies = "AF_UNIX AF_INET AF_INET6";
+
+    serviceConfig.RestrictNamespaces = true;
+    serviceConfig.RestrictSUIDSGID = true;
+    serviceConfig.SystemCallArchitectures = "native";
+    serviceConfig.SystemCallFilter = [ "@system-service" ];
+  };
+
+  systemd.services.lemmy-ui = {
+    # hardening (systemd-analyze security lemmy-ui)
+    # TODO: upstream into nixpkgs
+    serviceConfig.LockPersonality = true;
+    serviceConfig.NoNewPrivileges = true;
+    # serviceConfig.MemoryDenyWriteExecute = true;  #< it uses v8, JIT
+    serviceConfig.PrivateDevices = true;
+    serviceConfig.PrivateMounts = true;
+    serviceConfig.PrivateTmp = true;
+    serviceConfig.PrivateUsers = true;
+    serviceConfig.ProcSubset = "pid";
+
+    serviceConfig.ProtectClock = true;
+    serviceConfig.ProtectControlGroups = true;
+    serviceConfig.ProtectHome = true;
+    serviceConfig.ProtectHostname = true;
+    serviceConfig.ProtectKernelLogs = true;
+    serviceConfig.ProtectKernelModules = true;
+    serviceConfig.ProtectKernelTunables = true;
+    serviceConfig.ProtectProc = "invisible";
+    serviceConfig.ProtectSystem = "strict";
+    serviceConfig.RemoveIPC = true;
+    serviceConfig.RestrictAddressFamilies = "AF_UNIX AF_INET AF_INET6";
+
+    serviceConfig.RestrictNamespaces = true;
+    serviceConfig.RestrictSUIDSGID = true;
+    serviceConfig.SystemCallArchitectures = "native";
+    serviceConfig.SystemCallFilter = [ "@system-service" "@pkey" "@sandbox" ];
+  };
+
   #v DO NOT REMOVE: defaults to 0.3, instead of latest, so always need to explicitly set this.
   services.pict-rs.package = pict-rs;
 
@@ -81,10 +144,38 @@ in {
   # - 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 " " [
+  systemd.services.pict-rs = {
-    "${lib.getBin pict-rs}/bin/pict-rs run"
+    serviceConfig.ExecStart = lib.mkForce (lib.concatStringsSep " " [
-    "--media-video-max-frame-count" (builtins.toString (30*60*60))
+      "${lib.getBin pict-rs}/bin/pict-rs run"
-    "--media-process-timeout 120"
+      "--media-video-max-frame-count" (builtins.toString (30*60*60))
-    "--media-video-allow-audio"  # allow audio
+      "--media-process-timeout 120"
-  ]);
+      "--media-video-allow-audio"  # allow audio
+    ]);
+
+    # hardening (systemd-analyze security pict-rs)
+    # TODO: upstream into nixpkgs
+    serviceConfig.LockPersonality = true;
+    serviceConfig.NoNewPrivileges = true;
+    serviceConfig.MemoryDenyWriteExecute = true;
+    serviceConfig.PrivateDevices = true;
+    serviceConfig.PrivateMounts = true;
+    serviceConfig.PrivateTmp = true;
+    serviceConfig.PrivateUsers = true;
+    serviceConfig.ProcSubset = "pid";
+    serviceConfig.ProtectClock = true;
+    serviceConfig.ProtectControlGroups = true;
+    serviceConfig.ProtectHome = true;
+    serviceConfig.ProtectHostname = true;
+    serviceConfig.ProtectKernelLogs = true;
+    serviceConfig.ProtectKernelModules = true;
+    serviceConfig.ProtectKernelTunables = true;
+    serviceConfig.ProtectProc = "invisible";
+    serviceConfig.ProtectSystem = "strict";
+    serviceConfig.RemoveIPC = true;
+    serviceConfig.RestrictAddressFamilies = "AF_UNIX AF_INET AF_INET6";
+    serviceConfig.RestrictNamespaces = true;
+    serviceConfig.RestrictSUIDSGID = true;
+    serviceConfig.SystemCallArchitectures = "native";
+    serviceConfig.SystemCallFilter = [ "@system-service" ];
+  };
 }

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

@@ -1,6 +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>
+# example config: <https://github.com/element-hq/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>
@@ -20,19 +20,17 @@
     ./signal.nix
   ];
 
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.byStore.private = [
     { user = "matrix-synapse"; group = "matrix-synapse"; path = "/var/lib/matrix-synapse"; method = "bind"; }
   ];
   services.matrix-synapse.enable = true;
+  services.matrix-synapse.log.root.level = "ERROR";  # accepts "DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL" (?)
   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";
 
     # services.matrix-synapse.enable_registration_captcha = true;
     # services.matrix-synapse.enable_registration_without_verification = true;
-    enable_registration = true;
+    # enable_registration = true;
     # services.matrix-synapse.registration_shared_secret = "<shared key goes here>";
 
     # default for listeners is port = 8448, tls = true, x_forwarded = false.

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.byStore.private = [
     { user = "matrix-synapse"; group = "matrix-synapse"; path = "/var/lib/mx-puppet-discord"; method = "bind"; }
   ];
 

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

@@ -1,15 +1,13 @@
 # config docs:
 # - <https://github.com/matrix-org/matrix-appservice-irc/blob/develop/config.sample.yaml>
-#       probably want to remove that.
 { config, lib, ... }:
 
 let
-  ircServer = { name, additionalAddresses ? [], sasl ? true, port ? 6697 }: let
+  ircServer = { name, additionalAddresses ? [], ssl ? true, sasl ? true, port ? if ssl then 6697 else 6667 }: let
     lowerName = lib.toLower name;
   in {
     # XXX sasl: appservice doesn't support NickServ identification (only SASL, or PASS if sasl = false)
-    inherit name additionalAddresses sasl port;
+    inherit additionalAddresses name port sasl ssl;
-    ssl = true;
     botConfig = {
       # bot has no presence in IRC channel; only real Matrix users
       enabled = false;
@@ -101,7 +99,7 @@ in
     })
   ];
 
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.byStore.private = [
     # TODO: mode?
     { user = "matrix-appservice-irc"; group = "matrix-appservice-irc"; path = "/var/lib/matrix-appservice-irc"; method = "bind"; }
   ];
@@ -129,6 +127,7 @@ in
     };
 
     ircService = {
+      logging.level = "warn";  # "error", "warn", "info", "debug"
       servers = {
         "irc.esper.net" = ircServer {
           name = "esper";
@@ -156,6 +155,10 @@ in
           # - #sxmo-offtopic
         };
         "irc.rizon.net" = ircServer { name = "Rizon"; };
+        "wigle.net" = ircServer {
+          name = "WiGLE";
+          ssl = false;
+        };
       };
     };
   };

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

@@ -4,7 +4,7 @@
 
 lib.mkIf false  # disabled 2024/01/11: i don't use it, and pkgs.mautrix-signal had some API changes
 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.byStore.private = [
     { user = "mautrix-signal"; group = "mautrix-signal"; path = "/var/lib/mautrix-signal"; method = "bind"; }
     { user = "signald"; group = "signald"; path = "/var/lib/signald"; method = "bind"; }
   ];

hosts/by-name/servo/services/matrix/synapse-log_level.yaml

@@ -1,27 +0,0 @@
-version: 1
-
-# In systemd's journal, loglevel is implicitly stored, so let's omit it
-# from the message text.
-formatters:
-    journal_fmt:
-        format: '%(name)s: [%(request)s] %(message)s'
-
-filters:
-    context:
-        (): synapse.util.logcontext.LoggingContextFilter
-        request: ""
-
-handlers:
-    journal:
-        class: systemd.journal.JournalHandler
-        formatter: journal_fmt
-        filters: [context]
-        SYSLOG_IDENTIFIER: synapse
-
-# default log level: INFO
-root:
-    level: WARN
-    handlers: [journal]
-
-disable_existing_loggers: False
-

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

@@ -17,7 +17,6 @@ in
   sane.ports.ports."80" = {
     protocol = [ "tcp" ];
     visibleTo.lan = true;
-    visibleTo.wan = true;
     visibleTo.ovpns = true;  # so that letsencrypt can procure a cert for the mx record
     visibleTo.doof = true;
     description = "colin-http-uninsane.org";
@@ -25,12 +24,17 @@ in
   sane.ports.ports."443" = {
     protocol = [ "tcp" ];
     visibleTo.lan = true;
-    visibleTo.wan = true;
     visibleTo.doof = true;
     description = "colin-https-uninsane.org";
   };
 
   services.nginx.enable = true;
+  # nginxStable is one release behind nginxMainline.
+  # nginx itself recommends running mainline; nixos defaults to stable.
+  # services.nginx.package = pkgs.nginxMainline;
+  # XXX(2024-07-31): nixos defaults to zlib-ng -- supposedly more performant, but spams log with
+  # "gzip filter failed to use preallocated memory: ..."
+  services.nginx.package = pkgs.nginxMainline.override { zlib = pkgs.zlib; };
   services.nginx.appendConfig = ''
     # use 1 process per core.
     # may want to increase worker_connections too, but `ulimit -n` must be increased first.
@@ -46,8 +50,10 @@ in
     log_format vcombined '$host:$server_port $remote_addr - $remote_user [$time_local] "$request" $status $body_bytes_sent "$http_referrer" "$http_user_agent"';
     access_log /var/log/nginx/private.log vcombined;
   '';
-  # sets gzip_comp_level = 5
+  # enables gzip and sets gzip_comp_level = 5
   services.nginx.recommendedGzipSettings = true;
+  # enables zstd and sets zstd_comp_level = 9
+  services.nginx.recommendedZstdSettings = true;
   # enables OCSP stapling (so clients don't need contact the OCSP server -- i do instead)
   # - doesn't seem to, actually: <https://www.ssllabs.com/ssltest/analyze.html?d=uninsane.org>
   # caches TLS sessions for 10m
@@ -101,6 +107,16 @@ in
         disable_symlinks on;
       '';
     };
+    locations."/share/Ubunchu/" = {
+      alias = "/var/media/Books/Visual/HiroshiSeo/Ubunchu/";
+      extraConfig = ''
+        # autoindex => render directory listings
+        autoindex on;
+        # don't follow any symlinks when serving files
+        # otherwise it allows a directory escape
+        disable_symlinks on;
+      '';
+    };
 
     # allow matrix users to discover that @user:uninsane.org is reachable via matrix.uninsane.org
     locations."= /.well-known/matrix/server".extraConfig =
@@ -182,8 +198,15 @@ in
 
   sane.persist.sys.byStore.plaintext = [
     { user = "acme"; group = "acme"; path = "/var/lib/acme"; method = "bind"; }
+  ];
+  sane.persist.sys.byStore.private = [
     { user = "colin"; group = "users"; path = "/var/www/sites"; method = "bind"; }
   ];
+  sane.persist.sys.byStore.ephemeral = [
+    # logs *could* be persisted to private storage, but then there's the issue of
+    # "what if servo boots, isn't unlocked, and the whole / tmpfs is consumed by logs"
+    { user = "nginx"; group = "nginx"; path = "/var/log/nginx"; method = "bind"; }
+  ];
 
   # let's encrypt default chain looks like:
   # - End-entity certificate ← R3 ← ISRG Root X1 ← DST Root CA X3

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

@@ -30,7 +30,7 @@ let
   altPort = 2587;
 in
 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.byStore.private = [
     # 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.
@@ -46,7 +46,7 @@ in
     # 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
+    log-level = "info";  # trace, debug, info (default), warn, error
     auth-default-access = "deny-all";
   };
   systemd.services.ntfy-sh.serviceConfig.DynamicUser = lib.mkForce false;
@@ -86,7 +86,7 @@ in
   sane.ports.ports."${builtins.toString altPort}" = {
     protocol = [ "tcp" ];
     visibleTo.lan = true;
-    visibleTo.wan = true;
+    visibleTo.doof = true;
     description = "colin-ntfy.uninsane.org";
   };
 }

hosts/by-name/servo/services/ntfy/ntfy-waiter

@@ -1,5 +1,5 @@
 #!/usr/bin/env nix-shell
-#!nix-shell -i python3 -p "python3.withPackages (ps: [  ])" -p ntfy-sh
+#!nix-shell -i python3 -p ntfy-sh -p python3
 
 import argparse
 import logging

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

@@ -47,7 +47,7 @@ in
     };
     sane.ntfy-waiter.package = mkOption {
       type = types.package;
-      default = pkgs.static-nix-shell.mkPython3Bin {
+      default = pkgs.static-nix-shell.mkPython3 {
         pname = "ntfy-waiter";
         srcRoot = ./.;
         pkgs = [ "ntfy-sh" ];
@@ -62,8 +62,8 @@ in
     sane.ports.ports = lib.mkMerge (lib.forEach portRange (port: {
       "${builtins.toString port}" = {
         protocol = [ "tcp" ];
+        visibleTo.doof = true;
         visibleTo.lan = true;
-        visibleTo.wan = true;
         description = "colin-notification-waiter-${builtins.toString (port - portLow + 1)}-of-${builtins.toString numPorts}";
       };
     }));

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

@@ -0,0 +1,23 @@
+# ollama: <https://github.com/ollama/ollama>
+# use: `ollama run llama3.1`
+# or: `ollama run llama3.1:70b`
+# or use a remote session: <https://github.com/ggozad/oterm>
+{ lib, ... }:
+lib.mkIf false  #< WIP
+{
+  sane.persist.sys.byStore.plaintext = [
+    { user = "ollama"; group = "ollama"; path = "/var/lib/ollama"; method = "bind"; }
+  ];
+  services.ollama.enable = true;
+  services.ollama.user = "ollama";
+  services.ollama.group = "ollama";
+
+  users.groups.ollama = {};
+
+  users.users.ollama = {
+    group = "ollama";
+    isSystemUser = true;
+  };
+
+  systemd.services.ollama.serviceConfig.DynamicUser = lib.mkForce false;
+}

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

@@ -7,14 +7,15 @@
 # to run it in a oci-container: <https://github.com/barrucadu/nixfiles/blob/master/services/pleroma.nix>
 #
 # admin frontend: <https://fed.uninsane.org/pleroma/admin>
-{ config, pkgs, ... }:
+{ config, lib, pkgs, ... }:
 
 let
   logLevel = "warn";
   # logLevel = "debug";
 in
 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.byStore.private = [
+    # contains media i've uploaded to the server
     { user = "pleroma"; group = "pleroma"; path = "/var/lib/pleroma"; method = "bind"; }
   ];
   services.pleroma.enable = true;
@@ -135,25 +136,52 @@ in
     # something inside pleroma invokes `sh` w/o specifying it by path, so this is needed to allow pleroma to start
     pkgs.bash
     # used by Pleroma to strip geo tags from uploads
-    pkgs.exiftool
+    config.sane.programs.exiftool.package
     # i saw some errors when pleroma was shutting down about it not being able to find `awk`. probably not critical
-    pkgs.gawk
+    config.sane.programs.gawk.package
     # needed for email operations like password reset
     pkgs.postfix
   ];
 
-  systemd.services.pleroma.serviceConfig = {
+  systemd.services.pleroma = {
     # postgres can be slow to service early requests, preventing pleroma from starting on the first try
-    Restart = "on-failure";
+    serviceConfig.Restart = "on-failure";
-    RestartSec = "10s";
+    serviceConfig.RestartSec = "10s";
-  };
 
-  # systemd.services.pleroma.serviceConfig = {
+    # hardening (systemd-analyze security pleroma)
-  #   # required for sendmail. see https://git.pleroma.social/pleroma/pleroma/-/issues/2259
+    # XXX(2024-07-28): this hasn't been rigorously tested:
-  #   NoNewPrivileges = lib.mkForce false;
+    # possible that i've set something too strict and won't notice right away
-  #   PrivateTmp = lib.mkForce false;
+    # make sure to test:
-  #   CapabilityBoundingSet = lib.mkForce "~";
+    # - image/media uploading
-  # };
+    serviceConfig.CapabilityBoundingSet = "~CAP_SYS_ADMIN";  #< TODO: reduce this. try: CAP_SYS_NICE CAP_DAC_READ_SEARCH CAP_SYS_CHROOT CAP_SETGID CAP_SETUID
+    serviceConfig.LockPersonality = true;
+    serviceConfig.NoNewPrivileges = true;
+    serviceConfig.MemoryDenyWriteExecute = true;
+    serviceConfig.PrivateDevices = lib.mkForce true;  #< dunno why nixpkgs has this set false; it seems to work as true
+    serviceConfig.PrivateMounts = true;
+    serviceConfig.PrivateTmp = true;
+    serviceConfig.PrivateUsers = true;
+
+    serviceConfig.ProtectProc = "invisible";
+    serviceConfig.ProcSubset = "all";  #< needs /proc/sys/kernel/overflowuid for bwrap
+
+    serviceConfig.ProtectClock = true;
+    serviceConfig.ProtectControlGroups = true;
+    serviceConfig.ProtectHome = true;
+    serviceConfig.ProtectKernelModules = true;
+    serviceConfig.ProtectSystem = lib.mkForce "strict";
+    serviceConfig.RemoveIPC = true;
+    serviceConfig.RestrictAddressFamilies = "AF_UNIX AF_INET AF_INET6 AF_NETLINK";
+
+    serviceConfig.RestrictSUIDSGID = true;
+    serviceConfig.SystemCallArchitectures = "native";
+    serviceConfig.SystemCallFilter = [ "@system-service" "@mount" "@sandbox" ];  #< "sandbox" might not actually be necessary
+
+    serviceConfig.ProtectHostname = false;  #< else brap can't mount /proc
+    serviceConfig.ProtectKernelLogs = false;  #< else breaks exiftool  ("bwrap: Can't mount proc on /newroot/proc: Operation not permitted")
+    serviceConfig.ProtectKernelTunables = false;  #< else breaks exiftool
+    serviceConfig.RestrictNamespaces = false;  # media uploads require bwrap
+  };
 
   # this is required to allow pleroma to send email.
   # raw `sendmail` works, but i think pleroma's passing it some funny flags or something, idk.

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

@@ -6,9 +6,9 @@ let
   KiB = n: 1024*n;
 in
 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.byStore.private = [
-    # TODO: mode?
+    { user = "postgres"; group = "postgres"; mode = "0750"; path = "/var/lib/postgresql"; method = "bind"; }
-    { user = "postgres"; group = "postgres"; path = "/var/lib/postgresql"; method = "bind"; }
+    { user = "postgres"; group = "postgres"; mode = "0750"; path = "/var/backup/postgresql"; method = "bind"; }
   ];
   services.postgresql.enable = true;
 

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

@@ -56,47 +56,48 @@ let
   enableDebug = false;
 in
 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.byStore.private = [
+    # TODO: mode?
     { user = "prosody"; group = "prosody"; path = "/var/lib/prosody"; method = "bind"; }
   ];
   sane.ports.ports."5000" = {
     protocol = [ "tcp" ];
+    visibleTo.doof = true;
     visibleTo.lan = true;
-    visibleTo.wan = true;
     description = "colin-xmpp-prosody-fileshare-proxy65";
   };
   sane.ports.ports."5222" = {
     protocol = [ "tcp" ];
+    visibleTo.doof = true;
     visibleTo.lan = true;
-    visibleTo.wan = true;
     description = "colin-xmpp-client-to-server";
   };
   sane.ports.ports."5223" = {
     protocol = [ "tcp" ];
+    visibleTo.doof = true;
     visibleTo.lan = true;
-    visibleTo.wan = true;
     description = "colin-xmpps-client-to-server";  # XMPP over TLS
   };
   sane.ports.ports."5269" = {
     protocol = [ "tcp" ];
-    visibleTo.wan = true;
+    visibleTo.doof = true;
     description = "colin-xmpp-server-to-server";
   };
   sane.ports.ports."5270" = {
     protocol = [ "tcp" ];
-    visibleTo.wan = true;
+    visibleTo.doof = true;
     description = "colin-xmpps-server-to-server";  # XMPP over TLS
   };
   sane.ports.ports."5280" = {
     protocol = [ "tcp" ];
+    visibleTo.doof = true;
     visibleTo.lan = true;
-    visibleTo.wan = true;
     description = "colin-xmpp-bosh";
   };
   sane.ports.ports."5281" = {
     protocol = [ "tcp" ];
+    visibleTo.doof = true;
     visibleTo.lan = true;
-    visibleTo.wan = true;
     description = "colin-xmpp-prosody-https";  # necessary?
   };
 

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

@@ -10,7 +10,9 @@
 { config, lib, pkgs, ... }:
 
 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.byStore.ephemeral = [
+    # {data,downloads,incomplete,logs}: contains logs, search history, and downloads
+    # so, move the downloaded data to persistent storage regularly, or configure the downloads/incomplete dirs to point to persisted storage (in nixpkgs slskd config)
     { user = "slskd"; group = "media"; path = "/var/lib/slskd"; method = "bind"; }
   ];
   sops.secrets."slskd_env" = {
@@ -32,7 +34,7 @@
     forceSSL = true;
     enableACME = true;
     locations."/" = {
-      proxyPass = "http://10.0.1.6:5030";
+      proxyPass = "http://${config.sane.netns.ovpns.netnsVethIpv4}:5030";
       proxyWebsockets = true;
     };
   };
@@ -68,12 +70,20 @@
     # flags.volatile = true;  # store searches and active transfers in RAM (completed transfers still go to disk). rec for btrfs/zfs
   };
 
-  systemd.services.slskd.serviceConfig = {
+  systemd.services.slskd = {
     # run this behind the OVPN static VPN
-    NetworkNamespacePath = "/run/netns/ovpns";
+    serviceConfig.NetworkNamespacePath = "/run/netns/ovpns";
-    ExecStartPre = [ "${lib.getExe pkgs.sane-scripts.ip-check} --no-upnp --expect 185.157.162.178" ];  # abort if public IP is not as expected
+    serviceConfig.ExecStartPre = [ "${lib.getExe pkgs.sane-scripts.ip-check} --no-upnp --expect ${config.sane.netns.ovpns.netnsPubIpv4}" ];  # abort if public IP is not as expected
 
-    Restart = lib.mkForce "always";  # exits "success" when it fails to connect to soulseek server
+    serviceConfig.Restart = lib.mkForce "always";  # exits "success" when it fails to connect to soulseek server
-    RestartSec = "60s";
+    serviceConfig.RestartSec = "60s";
+
+    # hardening (systemd-analyze security slskd)
+    # upstream nixpkgs specifies moderate defaults; these are supplementary
+    # serviceConfig.MemoryDenyWriteExecute = true;
+    # serviceConfig.ProcSubset = "pid";
+    # serviceConfig.RestrictAddressFamilies = "AF_UNIX AF_INET AF_INET6";
+    # serviceConfig.SystemCallArchitectures = "native";
+    # serviceConfig.SystemCallFilter = [ "@system-service" ];
   };
 }

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

@@ -22,71 +22,23 @@ let
         --replace-fail 'set(TR_USER_AGENT_PREFIX "''${TR_SEMVER}")' 'set(TR_USER_AGENT_PREFIX "3.00")'
     '';
   });
-  download-dir = "/var/media/torrents";
+  download-dir = "/var/media/torrents";  #< keep in sync with consts embedded in `torrent-done`
-  torrent-done = pkgs.writeShellApplication {
+  torrent-done = pkgs.static-nix-shell.mkBash {
-    name = "torrent-done";
+    pname = "torrent-done";
-    runtimeInputs = with pkgs; [
+    srcRoot = ./.;
-      acl
+    pkgs = [
-      coreutils
+      "acl"
-      findutils
+      "coreutils"
-      rsync
+      "findutils"
-      util-linux
+      "rsync"
     ];
-    text = ''
-      destructive() {
-        if [ -n "''${TR_DRY_RUN-}" ]; then
-          echo "$*"
-        else
-          "$@"
-        fi
-      }
-      if [[ "$TR_TORRENT_DIR" =~ ^.*freeleech.*$ ]]; then
-        # freeleech torrents have no place in my permanent library
-        echo "freeleech: nothing to do"
-        exit 0
-      fi
-      if ! [[ "$TR_TORRENT_DIR" =~ ^${download-dir}/.*$ ]]; then
-        echo "unexpected torrent dir, aborting: $TR_TORRENT_DIR"
-        exit 0
-      fi
-
-      REL_DIR="''${TR_TORRENT_DIR#${download-dir}/}"
-      MEDIA_DIR="/var/media/$REL_DIR"
-
-      destructive mkdir -p "$(dirname "$MEDIA_DIR")"
-      destructive rsync -arv "$TR_TORRENT_DIR/" "$MEDIA_DIR/"
-      # make the media rwx by anyone in the group
-      destructive find "$MEDIA_DIR" -type d -exec setfacl --recursive --modify d:g::rwx,o::rx {} \;
-      destructive find "$MEDIA_DIR" -type d -exec chmod g+rw,a+rx {} \;
-
-      # if there's a single directory inside the media dir, then inline that
-      subdirs=("$MEDIA_DIR"/*)
-      if [ ''${#subdirs} -eq 1 ]; then
-        dirname="''${subdirs[0]}"
-        if [ -d "$dirname" ]; then
-          mv "$dirname"/* "$MEDIA_DIR/" && rmdir "$dirname"
-        fi
-      fi
-
-      # remove noisy files:
-      find "$MEDIA_DIR/" -type f \(\
-           -iname 'www.YTS.*.jpg' \
-        -o -iname 'WWW.YIFY*.COM.jpg' \
-        -o -iname 'YIFY*.com.txt' \
-        -o -iname 'YTS*.com.txt' \
-        \) -exec rm {} \;
-
-      # dedupe the whole media library.
-      # yeah, a bit excessive: move this to a cron job if that's problematic.
-      destructive hardlink /var/media --reflink=always --ignore-time --verbose
-    '';
   };
 in
-lib.mkIf false  #< TODO: re-enable once confident of sandboxing
 {
-  sane.persist.sys.byStore.plaintext = [
+  sane.persist.sys.byStore.private = [
     # TODO: mode? we need this specifically for the stats tracking in .config/
     { user = "transmission"; group = config.users.users.transmission.group; path = "/var/lib/transmission"; method = "bind"; }
+    { user = "transmission"; group = config.users.users.transmission.group; path = "/var/backup/torrents"; method = "bind"; }
   ];
   users.users.transmission.extraGroups = [ "media" ];
 
@@ -106,8 +58,8 @@ lib.mkIf false  #< TODO: re-enable once confident of sandboxing
     # DOCUMENTATION/options list: <https://github.com/transmission/transmission/blob/main/docs/Editing-Configuration-Files.md#options>
 
     # message-level = 3;  #< enable for debug logging. 0-3, default is 2.
-    # 10.0.1.6 => allow rpc only from the root servo ns. it'll tunnel things to the net, if need be.
+    # ovpns.netnsVethIpv4 => allow rpc only from the root servo ns. it'll tunnel things to the net, if need be.
-    rpc-bind-address = "10.0.1.6";
+    rpc-bind-address = config.sane.netns.ovpns.netnsVethIpv4;
     #rpc-host-whitelist = "bt.uninsane.org";
     #rpc-whitelist = "*.*.*.*";
     rpc-authentication-required = true;
@@ -118,7 +70,7 @@ lib.mkIf false  #< TODO: re-enable once confident of sandboxing
     rpc-whitelist-enabled = false;
 
     # force behind ovpns in case the NetworkNamespace fails somehow
-    bind-address-ipv4 = "185.157.162.178";
+    bind-address-ipv4 = config.sane.netns.ovpns.netnsPubIpv4;
     port-forwarding-enabled = false;
 
     # hopefully, make the downloads world-readable
@@ -155,16 +107,31 @@ lib.mkIf false  #< TODO: re-enable once confident of sandboxing
     script-torrent-done-filename = "${torrent-done}/bin/torrent-done";
   };
 
-  systemd.services.transmission.after = [ "wireguard-wg-ovpns.service" ];
+  systemd.services.transmission = {
-  systemd.services.transmission.partOf = [ "wireguard-wg-ovpns.service" ];
+    after = [ "wireguard-wg-ovpns.service" ];
-  systemd.services.transmission.serviceConfig = {
+    partOf = [ "wireguard-wg-ovpns.service" ];
+    environment.TR_DEBUG = "1";
     # run this behind the OVPN static VPN
-    NetworkNamespacePath = "/run/netns/ovpns";
+    serviceConfig.NetworkNamespacePath = "/run/netns/ovpns";
-    ExecStartPre = [ "${lib.getExe pkgs.sane-scripts.ip-check} --no-upnp --expect 185.157.162.178" ];  # abort if public IP is not as expected
+    serviceConfig.ExecStartPre = [ "${lib.getExe pkgs.sane-scripts.ip-check} --no-upnp --expect ${config.sane.netns.ovpns.netnsPubIpv4}" ];  # abort if public IP is not as expected
 
-    Restart = "on-failure";
+    serviceConfig.Restart = "on-failure";
-    RestartSec = "30s";
+    serviceConfig.RestartSec = "30s";
-    BindPaths = [ "/var/media" ];  #< so it can move completed torrents into the media library
+    serviceConfig.BindPaths = [ "/var/media" ];  #< so it can move completed torrents into the media library
+    serviceConfig.SystemCallFilter = lib.mkForce [
+      # the torrent-done script does stuff which fails the nixos default syscall filter.
+      # allow a bunch of stuff, speculatively, to hopefully fix that:
+      "@aio"
+      "@basic-io"
+      "@chown"
+      "@file-system"
+      "@io-event"
+      "@process"
+      "@sandbox"
+      "@sync"
+      "@system-service"
+      "quotactl"
+    ];
   };
 
   # service to automatically backup torrents i add to transmission
@@ -190,7 +157,7 @@ lib.mkIf false  #< TODO: re-enable once confident of sandboxing
     # inherit kTLS;
     locations."/" = {
       # proxyPass = "http://ovpns.uninsane.org:9091";
-      proxyPass = "http://10.0.1.6:9091";
+      proxyPass = "http://${config.sane.netns.ovpns.netnsVethIpv4}:9091";
     };
   };
 

hosts/by-name/servo/services/transmission/torrent-done

@@ -0,0 +1,70 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p acl -p bash -p coreutils -p findutils -p rsync
+
+# transmission invokes this with no args, and the following env vars:
+# - TR_TORRENT_DIR: full path to the folder i told transmission to download it to.
+#     e.g. /var/media/torrents/Videos/Film/Jason.Bourne-2016
+# optionally:
+# - TR_DRY_RUN=1
+# - TR_DEBUG=1
+
+DOWNLOAD_DIR=/var/media/torrents
+
+destructive() {
+  if [ -n "${TR_DRY_RUN-}" ]; then
+    echo "[dry-run] $*"
+  else
+    debug "$@"
+    "$@"
+  fi
+}
+debug() {
+  if [ -n "${TR_DEBUG-}" ]; then
+    echo "$@"
+  fi
+}
+
+echo "TR_TORRENT_DIR=$TR_TORRENT_DIR torrent-done $*"
+
+if [[ "$TR_TORRENT_DIR" =~ ^.*freeleech.*$ ]]; then
+  # freeleech torrents have no place in my permanent library
+  echo "freeleech: nothing to do"
+  exit 0
+fi
+if ! [[ "$TR_TORRENT_DIR" =~ ^$DOWNLOAD_DIR/.*$ ]]; then
+  echo "unexpected torrent dir, aborting: $TR_TORRENT_DIR"
+  exit 0
+fi
+
+REL_DIR="${TR_TORRENT_DIR#$DOWNLOAD_DIR/}"
+MEDIA_DIR="/var/media/$REL_DIR"
+
+destructive mkdir -p "$(dirname "$MEDIA_DIR")"
+destructive rsync -rlv "$TR_TORRENT_DIR/" "$MEDIA_DIR/"
+# make the media rwx by anyone in the group
+destructive find "$MEDIA_DIR" -type d -exec setfacl --recursive --modify d:g::rwx,o::rx {} \;
+destructive find "$MEDIA_DIR" -type d -exec chmod g+rw,a+rx {} \;
+destructive find "$MEDIA_DIR" -type f -exec chmod g+rw,a+r {} \;
+
+# if there's a single directory inside the media dir, then inline that
+subdirs=("$MEDIA_DIR"/*)
+debug "top-level items in torrent dir:" "${subdirs[@]}"
+if [ ${#subdirs[@]} -eq 1 ]; then
+  dirname="${subdirs[0]}"
+  debug "exactly one top-level item, checking if directory: $dirname"
+  if [ -d "$dirname" ]; then
+    destructive mv "$dirname"/* "$MEDIA_DIR/" && destructive rmdir "$dirname"
+  fi
+fi
+
+# remove noisy files:
+# -iname means "insensitive", but the syntax is NOT regex -- more similar to shell matching
+destructive find "$MEDIA_DIR/" -type f \(\
+     -iname '*downloaded?from*' \
+  -o -iname 'source.txt' \
+  -o -iname '*upcoming?releases*' \
+  -o -iname 'www.YTS*.jpg' \
+  -o -iname 'WWW.YIFY*.COM.jpg' \
+  -o -iname 'YIFY*.com.txt' \
+  -o -iname 'YTS*.com.txt' \
+  \) -exec rm {} \;

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

@@ -1,162 +0,0 @@
-# TODO: split this file apart into smaller files to make it easier to understand
-{ config, lib, pkgs, ... }:
-
-let
-  dyn-dns = config.sane.services.dyn-dns;
-  nativeAddrs = lib.mapAttrs (_name: builtins.head) config.sane.dns.zones."uninsane.org".inet.A;
-  bindOvpn = "10.0.1.5";
-  bindDoof = "10.0.2.5";
-in
-{
-  sane.ports.ports."53" = {
-    protocol = [ "udp" "tcp" ];
-    visibleTo.lan = true;
-    visibleTo.wan = true;
-    visibleTo.ovpns = true;
-    visibleTo.doof = true;
-    description = "colin-dns-hosting";
-  };
-
-  sane.dns.zones."uninsane.org".TTL = 900;
-
-  # SOA record structure: <https://en.wikipedia.org/wiki/SOA_record#Structure>
-  # SOA MNAME RNAME (... rest)
-  # MNAME = Master name server for this zone. this is where update requests should be sent.
-  # RNAME = admin contact (encoded email address)
-  # Serial = YYYYMMDDNN, where N is incremented every time this file changes, to trigger secondary NS to re-fetch it.
-  # Refresh = how frequently secondary NS should query master
-  # Retry = how long secondary NS should wait until re-querying master after a failure (must be < Refresh)
-  # Expire = how long secondary NS should continue to reply to queries after master fails (> Refresh + Retry)
-  sane.dns.zones."uninsane.org".inet = {
-    SOA."@" = ''
-      ns1.uninsane.org. admin-dns.uninsane.org. (
-                                      2023092101 ; Serial
-                                      4h         ; Refresh
-                                      30m        ; Retry
-                                      7d         ; Expire
-                                      5m)        ; Negative response TTL
-    '';
-    TXT."rev" = "2023092101";
-
-    CNAME."native" = "%CNAMENATIVE%";
-    A."@" =      "%ANATIVE%";
-    A."servo.wan" = "%AWAN%";
-    A."servo.lan" = config.sane.hosts.by-name."servo".lan-ip;
-    A."servo.hn" = config.sane.hosts.by-name."servo".wg-home.ip;
-
-    # XXX NS records must also not be CNAME
-    # it's best that we keep this identical, or a superset of, what org. lists as our NS.
-    # so, org. can specify ns2/ns3 as being to the VPN, with no mention of ns1. we provide ns1 here.
-    A."ns1" =    "%ANATIVE%";
-    A."ns2" =    "185.157.162.178";
-    A."ns3" =    "185.157.162.178";
-    A."ovpns" =  "185.157.162.178";
-    NS."@" = [
-      "ns1.uninsane.org."
-      "ns2.uninsane.org."
-      "ns3.uninsane.org."
-    ];
-  };
-
-  services.trust-dns.settings.zones = [ "uninsane.org" ];
-
-
-  networking.nat.enable = true;
-  networking.nat.extraCommands = ''
-    # redirect incoming DNS requests from LAN addresses
-    #   to the LAN-specialized DNS service
-    # N.B.: use the `nixos-*` chains instead of e.g. PREROUTING
-    #   because they get cleanly reset across activations or `systemctl restart firewall`
-    #   instead of accumulating cruft
-    iptables -t nat -A nixos-nat-pre -p udp --dport 53 \
-      -m iprange --src-range 10.78.76.0-10.78.79.255 \
-      -j DNAT --to-destination :1053
-    iptables -t nat -A nixos-nat-pre -p tcp --dport 53 \
-      -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";
-  };
-
-
-  sane.services.trust-dns.enable = true;
-  sane.services.trust-dns.instances = let
-    mkSubstitutions = flavor: {
-      "%AWAN%" = "$(cat '${dyn-dns.ipPath}')";
-      "%CNAMENATIVE%" = "servo.${flavor}";
-      "%ANATIVE%" = nativeAddrs."servo.${flavor}";
-      "%AOVPNS%" = "185.157.162.178";
-    };
-  in
-  {
-    wan = {
-      substitutions = mkSubstitutions "wan";
-      listenAddrsIpv4 = [
-        nativeAddrs."servo.lan"
-        bindOvpn
-        bindDoof
-      ];
-    };
-    lan = {
-      substitutions = mkSubstitutions "lan";
-      listenAddrsIpv4 = [ nativeAddrs."servo.lan" ];
-      port = 1053;
-    };
-    hn = {
-      substitutions = mkSubstitutions "hn";
-      listenAddrsIpv4 = [ nativeAddrs."servo.hn" ];
-      port = 1053;
-    };
-    # hn-resolver = {
-    #   # don't need %AWAN% here because we forward to the hn instance.
-    #   listenAddrsIpv4 = [ nativeAddrs."servo.hn" ];
-    #   extraConfig = {
-    #     zones = [
-    #       {
-    #         zone = "uninsane.org";
-    #         zone_type = "Forward";
-    #         stores = {
-    #           type = "forward";
-    #           name_servers = [
-    #             {
-    #               socket_addr = "${nativeAddrs."servo.hn"}:1053";
-    #               protocol = "udp";
-    #               trust_nx_responses = true;
-    #             }
-    #           ];
-    #         };
-    #       }
-    #       {
-    #         # 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;
-    #             }
-    #           ];
-    #         };
-    #       }
-    #     ];
-    #   };
-    # };
-  };
-
-  sane.services.dyn-dns.restartOnChange = [
-    "trust-dns-wan.service"
-    "trust-dns-lan.service"
-    "trust-dns-hn.service"
-    # "trust-dns-hn-resolver.service"  # doesn't need restart because it doesn't know about WAN IP
-  ];
-}

hosts/common/boot.nix

@@ -46,5 +46,6 @@
   # manifests as spurious "No space left on device" when trying to install watches,
   # e.g. in dyn-dns by `systemctl start dyn-dns-watcher.path`.
   # see: <https://askubuntu.com/questions/828779/failed-to-add-run-systemd-ask-password-to-directory-watch-no-space-left-on-dev>
-  boot.kernel.sysctl."fs.inotify.max_user_watches" = 1048576;
+  boot.kernel.sysctl."fs.inotify.max_user_watches" = 4194304;
+  boot.kernel.sysctl."fs.inotify.max_user_instances" = 4194304;
 }

hosts/common/default.nix

@@ -10,7 +10,6 @@
     ./machine-id.nix
     ./net
     ./nix.nix
-    ./persist.nix
     ./polyunfill.nix
     ./programs
     ./quirks.nix

hosts/common/feeds.nix

@@ -1,14 +1,11 @@
 # where to find good stuff?
 # - universal search/directory: <https://podcastindex.org>
+# - list of lists: <https://en.wikipedia.org/wiki/Category:Lists_of_podcasts>
 # - podcasts w/ a community: <https://lemmyverse.net/communities?query=podcast>
-# - podcast rec thread: <https://lemmy.ml/post/1565858>
+# - podcast recs:
+#   - active lemmy: <https://slrpnk.net/c/podcasts>
+#   - old thread: <https://lemmy.ml/post/1565858>
 #
-# candidates:
-# - The Nonlinear Library (podcast): <https://forum.effectivealtruism.org/posts/JTZTBienqWEAjGDRv/listen-to-more-ea-content-with-the-nonlinear-library>
-#   - has ~10 posts per day, text-to-speech; i would need better tagging before adding this
-# - <https://www.metaculus.com/questions/11102/introducing-the-metaculus-journal-podcast/>
-#   - dead since 2022/10 - 2023/03
-
 { lib, sane-data, ... }:
 let
   hourly = { freq = "hourly"; };
@@ -62,6 +59,7 @@ let
   podcasts = [
     (fromDb "acquiredlpbonussecretsecret.libsyn.com" // tech)  # ACQ2 - more "Acquired" episodes
     (fromDb "allinchamathjason.libsyn.com" // pol)
+    (fromDb "api.oyez.org/podcasts/oral-arguments/2015" // pol)  # Supreme Court Oral Arguments ("2015" in URL means nothing -- it's still updated)
     (fromDb "anchor.fm/s/34c7232c/podcast/rss" // tech)  # Civboot -- https://anchor.fm/civboot
     (fromDb "anchor.fm/s/2da69154/podcast/rss" // tech)  # POD OF JAKE -- https://podofjake.com/
     (fromDb "cast.postmarketos.org" // tech)
@@ -75,15 +73,17 @@ let
     (fromDb "feeds.feedburner.com/radiolab" // pol)  # Radiolab -- also available here, but ONLY OVER HTTP: <http://feeds.wnyc.org/radiolab>
     (fromDb "feeds.megaphone.fm/behindthebastards" // pol)  # also Maggie Killjoy
     (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.transistor.fm/acquired" // tech)
+    (fromDb "feeds.transistor.fm/complex-systems-with-patrick-mckenzie-patio11" // tech)  # Patrick Mackenzie (from Bits About Money)
+    (fromDb "feeds.twit.tv/floss.xml" // tech)
     (fromDb "fulltimenix.com" // tech)
     (fromDb "futureofcoding.org/episodes" // tech)
     (fromDb "hackerpublicradio.org" // tech)
     (fromDb "lexfridman.com/podcast" // rat)
+    (fromDb "linktr.ee/betteroffline" // pol)
     (fromDb "mapspodcast.libsyn.com" // uncat)  # Multidisciplinary Association for Psychedelic Studies
     (fromDb "microarch.club" // tech)
     (fromDb "mintcast.org" // tech)
@@ -91,8 +91,8 @@ let
     (fromDb "omny.fm/shows/cool-people-who-did-cool-stuff" // pol)  # Maggie Killjoy -- referenced by Cory Doctorow
     (fromDb "omny.fm/shows/money-stuff-the-podcast")  # Matt Levine
     (fromDb "omny.fm/shows/the-dollop-with-dave-anthony-and-gareth-reynolds")  # The Dollop history/comedy
+    (fromDb "omny.fm/shows/weird-little-guys")  # Cool Zone Media
     (fromDb "originstories.libsyn.com" // uncat)
-    (fromDb "podcast.posttv.com/itunes/post-reports.xml" // pol)
     (fromDb "politicalorphanage.libsyn.com" // pol)
     (fromDb "reverseengineering.libsyn.com/rss" // tech)  # UnNamed Reverse Engineering Podcast
     (fromDb "rss.acast.com/deconstructed")  # The Intercept - Deconstructed
@@ -103,6 +103,7 @@ let
     (fromDb "seattlenice.buzzsprout.com" // pol)
     (fromDb "srslywrong.com" // pol)
     (fromDb "sharkbytes.transistor.fm" // tech)  # Wireshark Podcast o_0
+    (fromDb "sharptech.fm/feed/podcast" // tech)
     (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 "theamphour.com" // tech)
@@ -114,7 +115,9 @@ let
 
     # (fromDb "feeds.libsyn.com/421877" // rat)  # Less Wrong Curated
     # (fromDb "feeds.megaphone.fm/hubermanlab" // uncat)  # Daniel Huberman on sleep
+    # (fromDb "feeds.simplecast.com/54nAGcIl" // pol)  # The Daily
     # (fromDb "feeds.simplecast.com/l2i9YnTd" // tech // pol)  # Hard Fork (NYtimes tech)
+    # (fromDb "podcast.posttv.com/itunes/post-reports.xml" // pol)
     # (fromDb "podcast.thelinuxexp.com" // tech)  # low-brow linux/foss PR announcements
     # (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
@@ -135,6 +138,7 @@ let
     (fromDb "artemis.sh" // tech)
     (fromDb "ascii.textfiles.com" // tech)  # Jason Scott
     (fromDb "austinvernon.site" // tech)
+    (fromDb "buttondown.email" // tech)
     (fromDb "ben-evans.com/benedictevans" // pol)
     (fromDb "bitbashing.io" // tech)
     (fromDb "bitsaboutmoney.com" // uncat)
@@ -196,6 +200,7 @@ let
     (fromDb "willow.phantoma.online")  # wizard@xyzzy.link
     (fromDb "xn--gckvb8fzb.com" // tech)
     (fromDb "xorvoid.com" // tech)
+    (fromDb "www.thebignewsletter.com" // pol)
     (mkSubstack "astralcodexten" // rat // daily)  # Scott Alexander
     (mkSubstack "eliqian" // rat // weekly)
     (mkSubstack "oversharing" // pol // daily)
@@ -238,9 +243,9 @@ let
     (fromDb "youtube.com/@TheB1M")
     (fromDb "youtube.com/@TomScottGo")
     (fromDb "youtube.com/@Vihart")
-    (fromDb "youtube.com/@Vox")
-    # (fromDb "youtube.com/@Vsauce")  # they're all like 1-minute long videos now? what happened @Vsauce?
 
+    # (fromDb "youtube.com/@Vox")
+    # (fromDb "youtube.com/@Vsauce")  # they're all like 1-minute long videos now? what happened @Vsauce?
     # (fromDb "youtube.com/@rossmanngroup" // pol // tech)  # Louis Rossmann
   ];
 

hosts/common/fs.nix

@@ -26,10 +26,6 @@ let
     # lazyMount: defer mounting until first access from userspace.
     # see: `man systemd.automount`, `man automount`, `man autofs`
     lazyMount = noauto ++ automount;
-    wg = [
-      "x-systemd.requires=wireguard-wg-home.service"
-      "x-systemd.after=wireguard-wg-home.service"
-    ];
 
     fuse = [
       "allow_other"  # allow users other than the one who mounts it to access it. needed, if systemd is the one mounting this fs (as root)
@@ -49,7 +45,7 @@ let
       "gid=100"
     ];
 
-    ssh = common ++ fuse ++ [
+    ssh = common ++ fuseColin ++ [
       "identityfile=/home/colin/.ssh/id_ed25519"
       # i *think* idmap=user means that `colin` on `localhost` and `colin` on the remote are actually treated as the same user, even if their uid/gid differs?
       # i.e., local colin's id is translated to/from remote colin's id on every operation?
@@ -111,66 +107,207 @@ let
       "connect_timeout=20"
     ];
   };
+
+  ifSshAuthorized = lib.mkIf config.sane.hosts.by-name."${config.networking.hostName}".ssh.authorized;
+
   remoteHome = host: {
     sane.programs.sshfs-fuse.enableFor.system = true;
+    system.fsPackages = [
+      config.sane.programs.sshfs-fuse.package
+    ];
     fileSystems."/mnt/${host}/home" = {
-      device = "colin@${host}:/home/colin";
+      device = "sshfs#colin@${host}:/home/colin";
-      fsType = "fuse.sshfs";
+      fsType = "fuse3";
-      options = fsOpts.sshColin ++ fsOpts.lazyMount;
+      options = fsOpts.sshColin ++ fsOpts.lazyMount ++ [
+        # drop_privileges: after `mount.fuse3` opens /dev/fuse, it will drop all capabilities before invoking sshfs
+        "drop_privileges"
+        "auto_unmount"  #< ensures that when the fs exits, it releases its mountpoint. then systemd can recognize it as failed.
+      ];
       noCheck = true;
     };
-    sane.fs."/mnt/${host}/home" = sane-lib.fs.wanted {
+    sane.fs."/mnt/${host}/home" = {
       dir.acl.user = "colin";
       dir.acl.group = "users";
       dir.acl.mode = "0700";
+      wantedBy = [ "default.target" ];
+      mount.depends = [ "network-online.target" ];
+      mount.mountConfig.ExecSearchPath = [ "/run/current-system/sw/bin" ];
+      mount.mountConfig.User = "colin";
+      mount.mountConfig.AmbientCapabilities = "CAP_SETPCAP CAP_SYS_ADMIN";
+      # hardening (systemd-analyze security mnt-desko-home.mount):
+      # TODO: i can't use ProtectSystem=full here, because i can't create a new mount space; but...
+      # with drop_privileges, i *could* sandbox the actual `sshfs` program using e.g. bwrap
+      mount.mountConfig.CapabilityBoundingSet = "CAP_SETPCAP CAP_SYS_ADMIN";
+      mount.mountConfig.LockPersonality = true;
+      mount.mountConfig.MemoryDenyWriteExecute = true;
+      mount.mountConfig.NoNewPrivileges = true;
+      mount.mountConfig.ProtectClock = true;
+      mount.mountConfig.ProtectHostname = true;
+      mount.mountConfig.RemoveIPC = true;
+      mount.mountConfig.RestrictAddressFamilies = "AF_UNIX AF_INET AF_INET6";
+      #VVV this includes anything it reads from, e.g. /bin/sh; /nix/store/...
+      # see `systemd-analyze filesystems` for a full list
+      mount.mountConfig.RestrictFileSystems = "@common-block @basic-api fuse";
+      mount.mountConfig.RestrictRealtime = true;
+      mount.mountConfig.RestrictSUIDSGID = true;
+      mount.mountConfig.SystemCallArchitectures = "native";
+      mount.mountConfig.SystemCallFilter = [
+        "@system-service"
+        "@mount"
+        "~@chown"
+        "~@cpu-emulation"
+        "~@keyring"
+        # could remove almost all io calls, however one has to keep `open`, and `write`, to communicate with the fuse device.
+        # so that's pretty useless as a way to prevent write access
+      ];
+      mount.mountConfig.IPAddressDeny = "any";
+      mount.mountConfig.IPAddressAllow = "10.0.0.0/8";
+      mount.mountConfig.DevicePolicy = "closed";  # only allow /dev/{null,zero,full,random,urandom}
+      mount.mountConfig.DeviceAllow = "/dev/fuse";
+      # mount.mountConfig.RestrictNamespaces = true;  #< my sshfs sandboxing uses bwrap
     };
   };
-  remoteServo = subdir: {
+  remoteServo = subdir: let
+    localPath = "/mnt/servo/${subdir}";
+    systemdName = utils.escapeSystemdPath localPath;
+  in {
     sane.programs.curlftpfs.enableFor.system = true;
-    sane.fs."/mnt/servo/${subdir}" = sane-lib.fs.wanted {
+    system.fsPackages = [
+      config.sane.programs.curlftpfs.package
+    ];
+    fileSystems."${localPath}" = {
+      device = "curlftpfs#ftp://servo-hn:/${subdir}";
+      noCheck = true;
+      fsType = "fuse3";
+      options = fsOpts.ftp ++ fsOpts.noauto ++ [
+        # drop_privileges: after `mount.fuse3` opens /dev/fuse, it will drop all capabilities before invoking sshfs
+        "drop_privileges"
+        "auto_unmount"  #< ensures that when the fs exits, it releases its mountpoint. then systemd can recognize it as failed.
+      ];
+      # fsType = "nfs";
+      # options = fsOpts.nfs ++ fsOpts.lazyMount;
+    };
+    sane.fs."${localPath}" = {
       dir.acl.user = "colin";
       dir.acl.group = "users";
       dir.acl.mode = "0750";
-    };
-    fileSystems."/mnt/servo/${subdir}" = {
-      device = "ftp://servo-hn:/${subdir}";
-      noCheck = true;
-      fsType = "fuse.curlftpfs";
-      options = fsOpts.ftp ++ fsOpts.noauto ++ fsOpts.wg;
-      # fsType = "nfs";
-      # options = fsOpts.nfs ++ fsOpts.lazyMount ++ fsOpts.wg;
-    };
-    systemd.services."automount-servo-${utils.escapeSystemdPath subdir}" = let
-      fs = config.fileSystems."/mnt/servo/${subdir}";
-    in {
-      # this is a *flaky* network mount, especially on moby.
-      # if done as a normal autofs mount, access will eternally block when network is dropped.
-      # notably, this would block *any* sandboxed app which allows media access, whether they actually try to use that media or not.
-      # a practical solution is this: mount as a service -- instead of autofs -- and unmount on timeout error, in a restart loop.
-      # until the ftp handshake succeeds, nothing is actually mounted to the vfs, so this doesn't slow down any I/O when network is down.
-      description = "automount /mnt/servo/${subdir} in a fault-tolerant and non-blocking manner";
-      after = [ "network-online.target" ];
-      requires = [ "network-online.target" ];
       wantedBy = [ "default.target" ];
+      mount.depends = [ "network-online.target" "${systemdName}-reachable.service" ];
+      #VVV patch so that when the mount fails, we start a timer to remount it.
+      #    and for a disconnection after a good mount (onSuccess), restart the timer to be more aggressive
+      mount.unitConfig.OnFailure = [ "${systemdName}.timer" ];
+      mount.unitConfig.OnSuccess = [ "${systemdName}-restart-timer.target" ];
 
-      serviceConfig.Type = "simple";
+      mount.mountConfig.TimeoutSec = "10s";
-      serviceConfig.ExecStart = lib.escapeShellArgs [
+      mount.mountConfig.ExecSearchPath = [ "/run/current-system/sw/bin" ];
-        "/usr/bin/env"
+      mount.mountConfig.User = "colin";
-        "PATH=/run/current-system/sw/bin"
+      mount.mountConfig.AmbientCapabilities = "CAP_SETPCAP CAP_SYS_ADMIN";
-        "mount.${fs.fsType}"
+      # hardening (systemd-analyze security mnt-servo-playground.mount)
-        "-f"  # foreground (i.e. don't daemonize)
+      mount.mountConfig.CapabilityBoundingSet = "CAP_SETPCAP CAP_SYS_ADMIN";
-        "-s"  # single-threaded (TODO: it's probably ok to disable this?)
+      mount.mountConfig.LockPersonality = true;
-        "-o"
+      mount.mountConfig.MemoryDenyWriteExecute = true;
-        (lib.concatStringsSep "," (lib.filter (o: !lib.hasPrefix "x-systemd." o) fs.options))
+      mount.mountConfig.NoNewPrivileges = true;
-        fs.device
+      mount.mountConfig.ProtectClock = true;
-        "/mnt/servo/${subdir}"
+      mount.mountConfig.ProtectHostname = true;
+      mount.mountConfig.RemoveIPC = true;
+      mount.mountConfig.RestrictAddressFamilies = "AF_UNIX AF_INET AF_INET6";
+      #VVV this includes anything it reads from, e.g. /bin/sh; /nix/store/...
+      # see `systemd-analyze filesystems` for a full list
+      mount.mountConfig.RestrictFileSystems = "@common-block @basic-api fuse";
+      mount.mountConfig.RestrictRealtime = true;
+      mount.mountConfig.RestrictSUIDSGID = true;
+      mount.mountConfig.SystemCallArchitectures = "native";
+      mount.mountConfig.SystemCallFilter = [
+        "@system-service"
+        "@mount"
+        "~@chown"
+        "~@cpu-emulation"
+        "~@keyring"
+        # could remove almost all io calls, however one has to keep `open`, and `write`, to communicate with the fuse device.
+        # so that's pretty useless as a way to prevent write access
       ];
-      # not sure if this configures a linear, or exponential backoff.
+      mount.mountConfig.IPAddressDeny = "any";
-      # but the first restart will be after `RestartSec`, and the n'th restart (n = RestartSteps) will be RestartMaxDelaySec after the n-1'th exit.
+      mount.mountConfig.IPAddressAllow = "10.0.10.5";
-      serviceConfig.Restart = "always";
+      mount.mountConfig.DevicePolicy = "closed";  # only allow /dev/{null,zero,full,random,urandom}
-      serviceConfig.RestartSec = "10s";
+      mount.mountConfig.DeviceAllow = "/dev/fuse";
-      serviceConfig.RestartMaxDelaySec = "120s";
+      # mount.mountConfig.RestrictNamespaces = true;
-      serviceConfig.RestartSteps = "5";
+    };
+
+    systemd.services."${systemdName}-reachable" = {
+      serviceConfig.ExecSearchPath = [ "/run/current-system/sw/bin" ];
+      serviceConfig.ExecStart = lib.escapeShellArgs [
+        "curlftpfs"
+        "ftp://servo-hn:/${subdir}"
+        "/dev/null"
+        "-o"
+        (lib.concatStringsSep "," ([ "exit_after_connect" ] ++ config.fileSystems."${localPath}".options))
+      ];
+      serviceConfig.RemainAfterExit = true;
+      serviceConfig.Type = "oneshot";
+      unitConfig.BindsTo = [ "${systemdName}.mount" ];
+      # hardening (systemd-analyze security mnt-servo-playground-reachable.service)
+      serviceConfig.AmbientCapabilities = "";
+      serviceConfig.CapabilityBoundingSet = "";
+      serviceConfig.DynamicUser = true;
+      serviceConfig.LockPersonality = true;
+      serviceConfig.MemoryDenyWriteExecute = true;
+      serviceConfig.NoNewPrivileges = true;
+      serviceConfig.PrivateDevices = true;
+      serviceConfig.PrivateMounts = true;
+      serviceConfig.PrivateTmp = true;
+      serviceConfig.PrivateUsers = true;
+      serviceConfig.ProcSubset = "all";
+      serviceConfig.ProtectClock = true;
+      serviceConfig.ProtectControlGroups = true;
+      serviceConfig.ProtectHome = true;
+      serviceConfig.ProtectKernelModules = true;
+      serviceConfig.ProtectProc = "invisible";
+      serviceConfig.ProtectSystem = "strict";
+      serviceConfig.RemoveIPC = true;
+      serviceConfig.RestrictAddressFamilies = "AF_UNIX AF_INET AF_INET6";
+      # serviceConfig.RestrictFileSystems = "@common-block @basic-api";  #< NOPE
+      serviceConfig.RestrictRealtime = true;
+      serviceConfig.RestrictSUIDSGID = true;
+      serviceConfig.SystemCallArchitectures = "native";
+      serviceConfig.SystemCallFilter = [
+        "@system-service"
+        "@mount"
+        "~@chown"
+        "~@cpu-emulation"
+        "~@keyring"
+        # "~@privileged"  #< NOPE
+        "~@resources"
+        # could remove some more probably
+      ];
+      serviceConfig.IPAddressDeny = "any";
+      serviceConfig.IPAddressAllow = "10.0.10.5";
+      serviceConfig.DevicePolicy = "closed";
+      # exceptions
+      serviceConfig.ProtectHostname = false;
+      serviceConfig.ProtectKernelLogs = false;
+      serviceConfig.ProtectKernelTunables = false;
+    };
+
+    systemd.targets."${systemdName}-restart-timer" = {
+      # hack unit which, when started, stops the timer (if running), and then starts it again.
+      after = [ "${systemdName}.timer" ];
+      conflicts = [ "${systemdName}.timer" ];
+      upholds = [ "${systemdName}.timer" ];
+      unitConfig.StopWhenUnneeded = true;
+    };
+    systemd.timers."${systemdName}" = {
+      timerConfig.Unit = "${systemdName}.mount";
+      timerConfig.AccuracySec = "2s";
+      timerConfig.OnActiveSec = [
+        # try to remount at these timestamps, backing off gradually
+        # there seems to be an implicit mount attempt at t=0.
+        "10s"
+        "30s"
+        "60s"
+        "120s"
+      ];
+      # cap the backoff to a fixed interval.
+      timerConfig.OnUnitActiveSec = [ "120s" ];
     };
   };
 in
@@ -216,10 +353,11 @@ lib.mkMerge [
     programs.fuse.userAllowOther = true;  #< necessary for `allow_other` or `allow_root` options.
   }
 
-  (remoteHome "crappy")
+  (ifSshAuthorized (remoteHome "crappy"))
-  (remoteHome "desko")
+  (ifSshAuthorized (remoteHome "desko"))
-  (remoteHome "lappy")
+  (ifSshAuthorized (remoteHome "lappy"))
-  (remoteHome "moby")
+  (ifSshAuthorized (remoteHome "moby"))
+  (ifSshAuthorized (remoteHome "servo"))
   # this granularity of servo media mounts is necessary to support sandboxing:
   # for flaky mounts, we can only bind the mountpoint itself into the sandbox,
   # so it's either this or unconditionally bind all of media/.

hosts/common/home/fs.nix

@@ -1,31 +1,30 @@
 { config, lib, ... }:
 {
   sane.user.persist.byStore.plaintext = [
-    "archive"
+    # TODO: some of ~/dev should be private too, but maybe not all 800+ GB of it
+    # perhaps i ought to rethink how it's organized
     "dev"
-    # TODO: records should be private
-    "records"
     "ref"
-    "tmp"
     "use"
     "Books/local"
     "Music"
+
+    # this is persisted simply to save on RAM. mesa_shader_cache is < 10 MB.
+    # TODO: integrate with sane.programs.sandbox?
+    ".cache/mesa_shader_cache"
+  ];
+  sane.user.persist.byStore.private = [
+    "archive"
     "Pictures/albums"
     "Pictures/cat"
     "Pictures/from"
     "Pictures/Screenshots"  #< XXX: something is case-sensitive about this?
     "Pictures/Photos"
-    "Videos/local"
+    "records"
+    "tmp"
 
-    # these are persisted simply to save on RAM.
-    # ~/.cache/nix can become several GB.
-    # mesa_shader_cache is < 10 MB.
-    # TODO: integrate with sane.programs.sandbox?
-    ".cache/mesa_shader_cache"
-    ".cache/nix"
-  ];
-  sane.user.persist.byStore.private = [
     "knowledge"
+    "Videos/local"
   ];
 
   # convenience
@@ -34,7 +33,7 @@
   in {
     ".persist/private" = lib.mkIf persistEnabled { symlink.target = config.sane.persist.stores.private.origin; };
     ".persist/plaintext" = lib.mkIf persistEnabled { symlink.target = config.sane.persist.stores.plaintext.origin; };
-    ".persist/ephemeral" = lib.mkIf persistEnabled { symlink.target = config.sane.persist.stores.cryptClearOnBoot.origin; };
+    ".persist/ephemeral" = lib.mkIf persistEnabled { symlink.target = config.sane.persist.stores.ephemeral.origin; };
 
     "nixos".symlink.target = "dev/nixos";
 

hosts/common/ids.nix

@@ -45,8 +45,8 @@
   sane.ids.pict-rs.gid = 2409;
   sane.ids.sftpgo.uid = 2410;
   sane.ids.sftpgo.gid = 2410;
-  sane.ids.trust-dns.uid = 2411;
+  sane.ids.hickory-dns.uid = 2411;  #< previously "trust-dns"
-  sane.ids.trust-dns.gid = 2411;
+  sane.ids.hickory-dns.gid = 2411;  #< previously "trust-dns"
   sane.ids.export.gid = 2412;
   sane.ids.nfsuser.uid = 2413;
   sane.ids.media.gid = 2414;
@@ -62,6 +62,9 @@
   sane.ids.clightning.gid = 2419;
   sane.ids.nix-serve.uid = 2420;
   sane.ids.nix-serve.gid = 2420;
+  sane.ids.plugdev.gid = 2421;
+  sane.ids.ollama.uid = 2422;
+  sane.ids.ollama.gid = 2422;
 
   sane.ids.colin.uid = 1000;
   sane.ids.guest.uid = 1100;

hosts/common/net/default.nix

@@ -12,6 +12,7 @@
 
   systemd.network.enable = true;
   networking.useNetworkd = true;
+  networking.usePredictableInterfaceNames = false;  #< set false to get `eth0`, `wlan0`, etc instead of `enp3s0`/etc
 
   # view refused/dropped packets with: `sudo journalctl -k`
   # networking.firewall.logRefusedPackets = true;

hosts/common/net/dns.nix

@@ -20,19 +20,19 @@
 # - each namespace may use a different /etc/resolv.conf to specify different DNS servers
 # - nscd breaks namespacing: the host nscd is unaware of the guest's /etc/resolv.conf, and so directs the guest's DNS requests to the host's servers.
 #   - this is fixed by either removing `/var/run/nscd/socket` from the namespace, or disabling nscd altogether.
-{ config, lib, ... }:
+{ config, lib, pkgs, ... }:
 lib.mkMerge [
 {
-  sane.services.trust-dns.enable = lib.mkDefault config.sane.services.trust-dns.asSystemResolver;
+  sane.services.hickory-dns.enable = lib.mkDefault config.sane.services.hickory-dns.asSystemResolver;
-  sane.services.trust-dns.asSystemResolver = lib.mkDefault true;
+  sane.services.hickory-dns.asSystemResolver = lib.mkDefault true;
 }
-(lib.mkIf (!config.sane.services.trust-dns.asSystemResolver) {
+(lib.mkIf (!config.sane.services.hickory-dns.asSystemResolver) {
   # 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 servo's 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?)
-  # TODO: improve trust-dns recursive resolver and then remove this
+  # TODO: improve hickory-dns recursive resolver and then remove this
   services.resolved.enable = true;  #< to disable, set ` = lib.mkForce false`, as other systemd features default to enabling `resolved`.
   # without DNSSEC:
   # - dig matrix.org => works
@@ -40,7 +40,7 @@ lib.mkMerge [
   # 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)
+  # i don't know why. this might somehow be interfering with the DNS run on this device (hickory-dns)
   services.resolved.dnssec = "false";
   networking.nameservers = [
     # use systemd-resolved resolver
@@ -59,15 +59,35 @@ lib.mkMerge [
   # in the netns and we query upstream DNS more often than needed. hm.
   # services.nscd.enableNsncd = true;
 
-  # disabling nscd LOSES US SOME FUNCTIONALITY. in particular, only the glibc-builtin modules are accessible via /etc/resolv.conf.
+  # disabling nscd LOSES US SOME FUNCTIONALITY. in particular, only the glibc-builtin modules are accessible via /etc/resolv.conf (er, did i mean /etc/nsswitch.conf?).
   # - dns: glibc-bultin
   # - files: glibc-builtin
   # - myhostname: systemd
   # - mymachines: systemd
   # - resolve: systemd
   # in practice, i see no difference with nscd disabled.
+  # - the exception is when the system dns resolver doesn't do everything.
+  #   for example, systemd-resolved does mDNS. hickory-dns does not. a hickory-dns system won't be mDNS-capable.
   # disabling nscd VASTLY simplifies netns and process isolation. see explainer at top of file.
   services.nscd.enable = false;
-  system.nssModules = lib.mkForce [];
+  # system.nssModules = lib.mkForce [];
+  sane.silencedAssertions = [''.*Loading NSS modules from system.nssModules.*requires services.nscd.enable being set to true.*''];
+  # add NSS modules into their own subdirectory.
+  # then i can add just the NSS modules library path to the global LD_LIBRARY_PATH, rather than ALL of /run/current-system/sw/lib.
+  # TODO: i'm doing this so as to achieve mdns DNS resolution (avahi). it would be better to just have hickory-dns delegate .local to avahi
+  #   (except avahi doesn't act as a local resolver over DNS protocol -- only dbus).
+  environment.systemPackages = [(pkgs.symlinkJoin {
+    name = "nss-modules";
+    paths = config.system.nssModules.list;
+    postBuild = ''
+      mkdir nss
+      mv $out/lib/libnss_* nss
+      rm -rf $out
+      mkdir -p $out/lib
+      mv nss $out/lib
+    '';
+  })];
+  environment.variables.LD_LIBRARY_PATH = [ "/run/current-system/sw/lib/nss" ];
+  systemd.globalEnvironment.LD_LIBRARY_PATH = "/run/current-system/sw/lib/nss";  #< specifically for `geoclue.service`
 }
 ]

hosts/common/net/modemmanager.nix

@@ -14,7 +14,6 @@
     # after = [ "polkit.service" ];
     # requires = [ "polkit.service" ];
     wantedBy = [ "network.target" ];  #< default is `multi-user.target`, somehow it doesn't auto-start with that...
-    # path = [ "/run/current-system/sw" ];  #< so it can find `sanebox`
 
     # serviceConfig.Type = "dbus";
     # serviceConfig.BusName = "org.freedesktop.ModemManager1";
@@ -38,7 +37,11 @@
     # serviceConfig.RestrictAddressFamilies = "AF_NETLINK AF_UNIX AF_QIPCRTR";
     # serviceConfig.NoNewPrivileges = true;
 
-    serviceConfig.CapabilityBoundingSet = [ "CAP_NET_ADMIN" ];  #< TODO: make sure this is *really* taking effect, and isn't supplemental to upstream's `CAP_SYS_ADMIN` setting
+    serviceConfig.CapabilityBoundingSet = [
+      ""  #< reset upstream capabilities
+      "CAP_NET_ADMIN"
+      "CAP_SYS_ADMIN"  #< TODO: remove CAP_SYS_ADMIN!
+    ];
     serviceConfig.LockPersonality = true;
     # serviceConfig.PrivateUsers = true;  #< untried, not likely to work since it needs capabilities
     serviceConfig.PrivateTmp = true;

hosts/common/net/networkmanager.nix

@@ -2,21 +2,28 @@
 let
   # networkmanager = pkgs.networkmanager;
   networkmanager = pkgs.networkmanager.overrideAttrs (upstream: {
-    src = pkgs.fetchFromGitea {
+    # src = pkgs.fetchFromGitea {
-      domain = "git.uninsane.org";
+    #   domain = "git.uninsane.org";
-      owner = "colin";
+    #   owner = "colin";
-      repo = "NetworkManager";
+    #   repo = "NetworkManager";
-      # patched to fix polkit permissions (with `nmcli`) when NetworkManager runs as user networkmanager
+    #   # patched to fix polkit permissions (with `nmcli`) when NetworkManager runs as user networkmanager
-      rev = "dev-sane-1.48.0";
+    #   rev = "dev-sane-1.48.0";
-      hash = "sha256-vGmOKtwVItxjYioZJlb1og3K6u9s4rcmDnjAPLBC3ao=";
+    #   hash = "sha256-vGmOKtwVItxjYioZJlb1og3K6u9s4rcmDnjAPLBC3ao=";
-    };
+    # };
-    # patches = [];
+    patches = (upstream.patches or []) ++ [
+      (pkgs.fetchpatch {
+        name = "polkit: add owner annotations to all actions";
+        url = "https://git.uninsane.org/colin/NetworkManager/commit/a01293861fa24201ffaeb84c07f1c71136c49759.patch";
+        hash = "sha256-th1/M2slo7rjkVBwETZII53Lmhyw8OMS0aT9QYI5Uvk=";
+      })
+    ];
   });
   # split the package into `daemon` and `nmcli` outputs, because the networkmanager *service*
   # doesn't need `nmcli`/`nmtui` tooling
   networkmanager-split = pkgs.networkmanager-split.override { inherit networkmanager; };
 in {
   networking.networkmanager.enable = true;
+  systemd.network.wait-online.enable = false;  # systemd-networkd-wait-online.service reliably fails on lappy. docs don't match behavior. shit software.
   # plugins mostly add support for establishing different VPN connections.
   # the default plugin set includes mostly proprietary VPNs:
   # - fortisslvpn (Fortinet)
@@ -59,6 +66,11 @@ in {
     serviceConfig.User = "networkmanager";
     serviceConfig.Group = "networkmanager";
     serviceConfig.AmbientCapabilities = [
+      "CAP_NET_ADMIN"
+      "CAP_NET_RAW"
+      "CAP_NET_BIND_SERVICE"
+    ];
+    serviceConfig.CapabilityBoundingSet = [
       # "CAP_DAC_OVERRIDE"
       "CAP_NET_ADMIN"
       "CAP_NET_RAW"  #< required, else `libndp: ndp_sock_open: Failed to create ICMP6 socket.`
@@ -69,6 +81,7 @@ in {
     ];
     serviceConfig.LockPersonality = true;
     serviceConfig.NoNewPrivileges = true;
+    serviceConfig.MemoryDenyWriteExecute = true;
     serviceConfig.PrivateDevices = true;  # remount /dev with just the basics, syscall filter to block @raw-io
     serviceConfig.PrivateIPC = true;
     serviceConfig.PrivateTmp = true;
@@ -80,7 +93,10 @@ in {
     serviceConfig.ProtectKernelLogs = true;  # disable /proc/kmsg, /dev/kmsg
     serviceConfig.ProtectKernelModules = true;  # syscall filter to prevent module calls (probably not upstreamable: NM will want to load modules like `ppp`)
     serviceConfig.ProtectKernelTunables = true;  # but NM might need to write /proc/sys/net/...
+    serviceConfig.ProtectProc = "invisible";
+    serviceConfig.ProcSubset = "pid";
     serviceConfig.ProtectSystem = "strict";  # makes read-only: all but /dev, /proc, /sys.
+    serviceConfig.RemoveIPC = true;
     serviceConfig.RestrictAddressFamilies = [
       "AF_INET"
       "AF_INET6"
@@ -91,19 +107,25 @@ in {
       # AF_BLUETOOTH ?
       # AF_BRIDGE ?
     ];
+    serviceConfig.RestrictNamespaces = true;
     serviceConfig.RestrictSUIDSGID = true;
     serviceConfig.SystemCallArchitectures = "native";  # prevents e.g. aarch64 syscalls in the event that the kernel is multi-architecture.
+    serviceConfig.SystemCallFilter = [
+      "@system-service"
+      # TODO: restrict SystemCallFilter more aggressively
+    ];
+    # TODO: restrict `DeviceAllow`
     # from earlier `landlock` sandboxing, i know it needs these directories:
     # - "/proc/net"
     # - "/proc/sys/net"
     # - "/run/NetworkManager"
-    # - "/run/systemd"  # for trust-dns-nmhook
+    # - "/run/systemd"  # for hickory-dns-nmhook
     # - "/run/udev"
     # - # "/run/wg-home.priv"
     # - "/sys/class"
     # - "/sys/devices"
     # - "/var/lib/NetworkManager"
-    # - "/var/lib/trust-dns"  #< for trust-dns-nmhook
+    # - "/var/lib/hickory-dns"  #< for hickory-dns-nmhook
     # - "/run/systemd"
   };
 
@@ -115,7 +137,12 @@ in {
   # fix NetworkManager-dispatcher to actually run as a daemon,
   # and sandbox it a bit
   systemd.services.NetworkManager-dispatcher = {
-    after = [ "trust-dns-localhost.service" ];  #< so that /var/lib/trust-dns will exist
+    #VVV so that /var/lib/hickory-dns will exist (the hook needs to write here).
+    # but this creates a cycle: hickory-dns-localhost > network.target > NetworkManager-dispatcher > hickory-dns-localhost.
+    # (seemingly) impossible to remove the network.target dep on NetworkManager-dispatcher.
+    # beffore would be to have the dispatcher not write hickory-dns files
+    # but rather just its own, and create a .path unit which restarts hickory-dns appropriately.
+    # after = [ "hickory-dns-localhost.service" ];
     # serviceConfig.ExecStart = [
     #   ""  # first blank line is to clear the upstream `ExecStart` field.
     #   "${cfg.package}/libexec/nm-dispatcher --persist"  # --persist is needed for it to actually run as a daemon
@@ -123,7 +150,7 @@ in {
     # serviceConfig.Restart = "always";
     # serviceConfig.RestartSec = "1s";
 
-    # serviceConfig.DynamicUser = true;  #< not possible, else we lose group perms (so can't write to `trust-dns`'s files in the nm hook)
+    # serviceConfig.DynamicUser = true;  #< not possible, else we lose group perms (so can't write to `hickory-dns`'s files in the nm hook)
     serviceConfig.User = "networkmanager";  # TODO: should arguably use `DynamicUser`
     serviceConfig.Group = "networkmanager";
     serviceConfig.LockPersonality = true;
@@ -139,7 +166,7 @@ in {
     serviceConfig.ProtectKernelLogs = true;  # disable /proc/kmsg, /dev/kmsg
     serviceConfig.ProtectKernelModules = true;  # syscall filter to prevent module calls
     serviceConfig.ProtectKernelTunables = true;
-    serviceConfig.ProtectSystem = "full";  # makes read-only: /boot, /etc/, /usr. `strict` isn't possible due to trust-dns hook
+    serviceConfig.ProtectSystem = "full";  # makes read-only: /boot, /etc/, /usr. `strict` isn't possible due to hickory-dns hook
     serviceConfig.RestrictAddressFamilies = [
       "AF_UNIX"  # required, probably for dbus or systemd connectivity
     ];
@@ -199,9 +226,15 @@ in {
     logging.level = "INFO";
 
     # main.dhcp = "internal";  #< default
+    # main.dns controls what to do when NM gets a DNS server via DHCP
+    # - "none"  (populate /run/NetworkManager/resolv.conf with DHCP settings)
+    # - "internal" (?)
+    # - "systemd-resolved" (tell systemd-resolved about it, and point /run/NetworkManager/resolv.conf -> systemd)
+    #   without this, systemd-resolved won't be able to resolve anything (because it has no upstream servers)
+    # note that NM's resolv.conf isn't (necessarily) /etc/resolv.conf -- that is managed by nixos (via symlinking)
     main.dns = if config.services.resolved.enable then
       "systemd-resolved"
-    else if config.sane.services.trust-dns.enable && config.sane.services.trust-dns.asSystemResolver then
+    else if config.sane.services.hickory-dns.enable && config.sane.services.hickory-dns.asSystemResolver then
       "none"
     else
       "internal"
@@ -243,7 +276,7 @@ in {
   users.users.networkmanager = {
     isSystemUser = true;
     group = "networkmanager";
-    extraGroups = [ "trust-dns" ];
+    extraGroups = [ "hickory-dns" ];
   };
 
   # there is, unfortunately, no proper interface by which to plumb wpa_supplicant into the NixOS service, except by overlay.

hosts/common/persist.nix

@@ -1,17 +0,0 @@
-{ ... }:
-
-{
-  # store /home/colin/a/b in /mnt/persist/private/a/b instead of /mnt/persist/private/home/colin/a/b
-  sane.persist.stores.private.prefix = "/home/colin";
-
-  sane.persist.sys.byStore.initrd = [
-    "/var/log"
-  ];
-  sane.persist.sys.byStore.plaintext = [
-    # TODO: these should be private.. somehow
-    "/var/backup"  # for e.g. postgres dumps
-  ];
-  sane.persist.sys.byStore.cryptClearOnBoot = [
-    "/var/lib/systemd/coredump"
-  ];
-}

hosts/common/polyunfill.nix

@@ -1,12 +1,11 @@
 # strictly *decrease* the scope of the default nixos installation/config
 
-{ lib, pkgs, ... }:
+{ config, lib, pkgs, ... }:
 let
   suidlessPam = pkgs.pam.overrideAttrs (upstream: {
     # nixpkgs' pam hardcodes unix_chkpwd path to the /run/wrappers one,
     # but i don't want the wrapper, so undo that.
     # ideally i would patch this via an overlay, but pam is in the bootstrap so that forces a full rebuild.
-    # TODO: add a `package` option to the nixos' pam module and substitute it that way.
     postPatch = (if upstream.postPatch != null then upstream.postPatch else "") + ''
       substituteInPlace modules/pam_unix/Makefile.am --replace-fail \
         "/run/wrappers/bin/unix_chkpwd" "$out/bin/unix_chkpwd"
@@ -39,36 +38,29 @@ in
     ]));
   };
   options.security.pam.services = lib.mkOption {
-    apply = services: let
+    apply = lib.filterAttrs (name: _: !(builtins.elem name [
-      filtered = lib.filterAttrs (name: _: !(builtins.elem name [
+      # from <repo:nixos/nixpkgs:nixos/modules/security/pam.nix>
-        # from <repo:nixos/nixpkgs:nixos/modules/security/pam.nix>
+      "i3lock"
-        "i3lock"
+      "i3lock-color"
-        "i3lock-color"
+      "vlock"
-        "vlock"
+      "xlock"
-        "xlock"
+      "xscreensaver"
-        "xscreensaver"
+      "runuser"
-        "runuser"
+      "runuser-l"
-        "runuser-l"
+      # from ??
-        # from ??
+      "chfn"
-        "chfn"
+      "chpasswd"
-        "chpasswd"
+      "chsh"
-        "chsh"
+      "groupadd"
-        "groupadd"
+      "groupdel"
-        "groupdel"
+      "groupmems"
-        "groupmems"
+      "groupmod"
-        "groupmod"
+      "useradd"
-        "useradd"
+      "userdel"
-        "userdel"
+      "usermod"
-        "usermod"
+      # from <repo:nixos/nixpkgs:nixos/modules/system/boot/systemd/user.nix>
-        # from <repo:nixos/nixpkgs:nixos/modules/system/boot/systemd/user.nix>
+      "systemd-user"  #< N.B.: this causes the `systemd --user` service manager to not be started!
-        "systemd-user"  #< N.B.: this causes the `systemd --user` service manager to not be started!
+    ]));
-      ])) services;
-    in lib.mapAttrs (_serviceName: service: service // {
-      # replace references with the old pam_unix, which calls into /run/wrappers/bin/unix_chkpwd,
-      # with a pam_unix that calls into unix_chkpwd via the nix store.
-      # TODO: use `security.pam.package` instead once <https://github.com/NixOS/nixpkgs/pull/314791> lands.
-      text = lib.replaceStrings [" pam_unix.so" ] [ " ${suidlessPam}/lib/security/pam_unix.so" ] service.text;
-    }) filtered;
   };
 
   options.environment.systemPackages = lib.mkOption {
@@ -111,7 +103,11 @@ in
         # pkgs.which
         # pkgs.zstd
       ];
-    in lib.filter (p: ! builtins.elem p requiredPackages);
+      conveniencePackages = [
+        config.boot.kernelPackages.cpupower  # <repo:nixos/nixpkgs:nixos/modules/tasks/cpu-freq.nix> places it on PATH for convenience if powerManagement.cpuFreqGovernor is set
+        pkgs.kbd  # <repo:nixos/nixpkgs:nixos/modules/config/console.nix>  places it on PATH as part of console/virtual TTYs, but probably not needed unless you want to set console fonts
+      ];
+    in lib.filter (p: ! builtins.elem p (requiredPackages ++ conveniencePackages));
   };
 
   options.system.fsPackages = lib.mkOption {
@@ -212,5 +208,16 @@ in
 
     # see: <repo:nixos/nixpkgs:nixos/modules/virtualisation/nixos-containers.nix>
     boot.enableContainers = lib.mkDefault false;
+
+    # see: <repo:nixos/nixpkgs:nixos/modules/tasks/lvm.nix>
+    # lvm places `pkgs.lvm2` onto PATH, which has like 100 binaries.
+    # it is, actually, needed for some userspace tools (cryptsetup). probably just the udev rules. try to reduce this set?
+    services.lvm.enable = lib.mkDefault false;
+    services.udev.packages = [ pkgs.lvm2.out ];  #< N.B. `lvm2.out` != `lvm2`
+    # systemd.packages = [ pkgs.lvm2 ];
+    # systemd.tmpfiles.packages = [ pkgs.lvm2.out ];
+    # environment.systemPackages = [ pkgs.lvm2 ];
+
+    security.pam.package = suidlessPam;
   };
 }

hosts/common/programs/assorted.nix

@@ -38,7 +38,9 @@ in
       "bridge-utils"  # for brctl; debug linux "bridge" inet devices
       "btrfs-progs"
       "cacert.unbundled"  # some services require unbundled /etc/ssl/certs
+      "captree"
       "cryptsetup"
+      "curl"
       "ddrescue"
       "dig"
       "dtc"  # device tree [de]compiler
@@ -46,6 +48,7 @@ in
       "efibootmgr"
       "errno"
       "ethtool"
+      "evtest"
       "fatresize"
       "fd"
       "file"
@@ -57,6 +60,7 @@ in
       "git"
       "gptfdisk"  # gdisk
       "hdparm"
+      "hping"
       "htop"
       "iftop"
       "inetutils"  # for telnet
@@ -67,7 +71,7 @@ in
       "killall"
       "less"
       "lftp"
-      # "libcap_ng"  # for `netcap`
+      "libcap_ng"  # for `netcap`, `pscap`, `captest`
       "lsof"
       "man-pages"
       "man-pages-posix"
@@ -78,6 +82,7 @@ in
       "neovim"
       "netcat"
       "nethogs"
+      "nix"
       "nmap"
       "nmcli"
       "nvme-cli"  # nvme
@@ -106,9 +111,6 @@ in
       # "zfs"  # doesn't cross-compile (requires samba)
     ];
     sysadminExtraUtils = declPackageSet [
-      "backblaze-b2"
-      "duplicity"
-      "sane-scripts.backup"
       "sqlite"  # to debug sqlite3 databases
     ];
 
@@ -124,6 +126,7 @@ in
       # "dmidecode"
       "dtrx"  # `unar` alternative, "Do The Right eXtraction"
       # "efivar"
+      "exiftool"
       "eza"  # a better 'ls'
       # "flashrom"
       "git"  # needed as a user package, for config.
@@ -151,11 +154,16 @@ in
       # "ponymix"
       "pulsemixer"
       "python3-repl"
-      # "python3Packages.eyeD3"  # music tagging
+      # "python3.pkgs.eyeD3"  # music tagging
       "ripgrep"  # needed as a user package so that its user-level config file can be installed
       "rsync"
+      # "rsyslog"  # KEEP THIS HERE if you want persistent logging (TODO: port to systemd, store in /var/log/...)
+      "sane-deadlines"
       "sane-scripts.bittorrent"
       "sane-scripts.cli"
+      "sane-secrets-unlock"
+      "sane-sysload"
+      "sc-im"
       # "snapper"
       "sops"  # for manually viewing secrets; outside `sane-secrets` (TODO: improve sane-secrets!)
       "speedtest-cli"
@@ -175,8 +183,12 @@ in
       # "gh"  # MS GitHub cli
       "nix-index"
       "nixpkgs-review"
+      "qmk-udev-rules"
       "sane-scripts.dev"
       "sequoia"
+      # "via"
+      "wally-cli"
+      # "zsa-udev-rules"
     ];
 
     consoleMediaUtils = declPackageSet [
@@ -270,45 +282,44 @@ in
       # "emote"
       # "evince"  # PDF viewer
       # "flare-signal"  # gtk4 signal client
-      # "foliate"  # e-book reader
       "fractal"  # matrix client
       "g4music"  # local music player
       # "gnome.cheese"
       # "gnome-feeds"  # RSS reader (with claimed mobile support)
       # "gnome.file-roller"
-      "gnome.geary"  # adaptive e-mail client; uses webkitgtk 4.1
+      "geary"  # adaptive e-mail client; uses webkitgtk 4.1
-      "gnome.gnome-calculator"
+      "gnome-calculator"
-      "gnome.gnome-calendar"
+      "gnome-calendar"
       "gnome.gnome-clocks"
       "gnome.gnome-maps"
       # "gnome-podcasts"
       # "gnome.gnome-system-monitor"
       # "gnome.gnome-terminal"  # works on phosh
       "gnome.gnome-weather"
-      # "gnome.seahorse"  # keyring/secret manager
+      # "seahorse"  # keyring/secret manager
       "gnome-frog"  # OCR/QR decoder
       "gpodder"
-      "gst-device-monitor"  # for debugging audio/video
+      # "gst-device-monitor"  # for debugging audio/video
       # "gthumb"
       # "lemoa"  # lemmy app
-      "libcamera"  # for `cam` binary (useful for debugging cameras)
+      # "libcamera"  # for `cam` binary (useful for debugging cameras)
       "libnotify"  # for notify-send; debugging
       # "lollypop"
       "loupe"  # image viewer
       "mate.engrampa"  # archive manager
       "mepo"  # maps viewer
-      "mesa-demos"  # for eglinfo, glxinfo & other testing tools
+      # "mesa-demos"  # for eglinfo, glxinfo & other testing tools
       "mpv"
       "networkmanagerapplet"  # for nm-connection-editor: it's better than not having any gui!
       "ntfy-sh"  # notification service
-      # "newsflash"  # RSS viewer
+      "newsflash"  # RSS viewer
       "pavucontrol"
       "pwvucontrol"  # pipewire version of pavu
       # "picard"  # music tagging
       # "libsForQt5.plasmatube"  # Youtube player
       "signal-desktop"
-      "snapshot"  # camera app
+      # "snapshot"  # camera app
-      "spot"  # Gnome Spotify client
+      # "spot"  # Gnome Spotify client
       # "sublime-music"
       # "tdesktop"  # broken on phosh
       # "tokodon"
@@ -316,17 +327,20 @@ in
       "vulkan-tools"  # vulkaninfo
       # "whalebird"  # pleroma client (Electron). input is broken on phosh.
       "xdg-terminal-exec"
+      "youtube-tui"
       "zathura"  # PDF/CBZ/ePUB viewer
     ];
 
     handheldGuiApps = declPackageSet [
       # "celluloid"  # mpv frontend
       # "chatty"  # matrix/xmpp/irc client  (2023/12/29: disabled because broken cross build)
-      "cozy"  # audiobook player
+      # "cozy"  # audiobook player
       "epiphany"  # gnome's web browser
+      "foliate"  # e-book reader
       # "iotas"  # note taking app
       "komikku"
       "koreader"
+      "lgtrombetta-compass"
       "megapixels"  # camera app
       "notejot"  # note taking, e.g. shopping list
       "planify"  # todo-tracker/planner
@@ -348,7 +362,7 @@ in
       # "chromium"  # chromium takes hours to build. brave is chromium-based, distributed in binary form, so prefer it.
       # "cups"
       "discord"  # x86-only
-      "electrum"
+      # "electrum"
       "element-desktop"
       "firefox"
       "font-manager"
@@ -356,13 +370,14 @@ in
       "gimp"  # broken on phosh
       # "gnome.dconf-editor"
       # "gnome.file-roller"
-      "gnome.gnome-disk-utility"
+      "gnome-disk-utility"
-      "gnome.nautilus"  # file browser
+      "nautilus"  # file browser
       # "gnome.totem"  # video player, supposedly supports UPnP
       # "handbrake"  #< TODO: fix build
       "inkscape"
       # "jellyfin-media-player"
       "kdenlive"
+      # "keymapp"
       # "kid3"  # audio tagging
       "krita"
       "libreoffice"  # TODO: replace with an office suite that uses saner packaging?
@@ -371,13 +386,13 @@ in
       # "monero-gui"  # x86-only
       # "mumble"
       # "nheko"  # Matrix chat client
-      # "nicotine-plus"  # soulseek client. before re-enabling this make sure it's properly sandboxed!
+      "nicotine-plus"  # soulseek client
       # "obsidian"
       # "openscad"  # 3d modeling
       # "rhythmbox"  # local music player
       # "slic3r"
       "soundconverter"
-      "spotify"  # x86-only
+      # "spotify"  # x86-only
       "tor-browser"  # x86-only
       # "vlc"
       "wireshark"  # could maybe ship the cli as sysadmin pkg
@@ -416,12 +431,17 @@ in
     btrfs-progs.sandbox.method = "bwrap";  #< bwrap, landlock: both work
     btrfs-progs.sandbox.autodetectCliPaths = "existing";  # e.g. `btrfs filesystem df /my/fs`
 
-    "cacert.unbundled".sandbox.enable = false;
+    "cacert.unbundled".sandbox.enable = false;  #< data only
 
     cargo.persist.byStore.plaintext = [ ".cargo" ];
 
     clang = {};
 
+    clightning-sane.sandbox.method = "bwrap";
+    clightning-sane.sandbox.extraPaths = [
+      "/var/lib/clightning/bitcoin/lightning-rpc"
+    ];
+
     # cryptsetup: typical use is `cryptsetup open /dev/loopxyz mappedName`, and creates `/dev/mapper/mappedName`
     cryptsetup.sandbox.method = "landlock";
     cryptsetup.sandbox.extraPaths = [
@@ -491,7 +511,7 @@ in
     electrum.sandbox.method = "bwrap";  # TODO:sandbox: untested
     electrum.sandbox.net = "all";  # TODO: probably want to make this run behind a VPN, always
     electrum.sandbox.whitelistWayland = true;
-    electrum.persist.byStore.cryptClearOnBoot = [ ".electrum" ];  #< TODO: use XDG dirs!
+    electrum.persist.byStore.ephemeral = [ ".electrum" ];  #< TODO: use XDG dirs!
 
     endless-sky.buildCost = 1;
     endless-sky.persist.byStore.plaintext = [ ".local/share/endless-sky" ];
@@ -508,9 +528,17 @@ in
     ethtool.sandbox.method = "landlock";
     ethtool.sandbox.capabilities = [ "net_admin" ];
 
+    evtest.sandbox.method = "bwrap";
+    evtest.sandbox.autodetectCliPaths = "existingFile";  # `evtest /dev/foo` to monitor events for a specific device
+    evtest.sandbox.extraPaths = [
+      "/dev/input"
+    ];
+
     # eza `ls` replacement
-    # eza.sandbox.method = "landlock";
+    # bwrap causes `/proc` files to be listed differently (e.g. `eza /proc/sys/net/ipv6/conf/`)
-    eza.sandbox.method = "bwrap";  #< note that bwrap causes `/proc` files to be listed differently (e.g. `eza /proc/sys/net/ipv6/conf/`)
+    # bwrap loses group info (so files owned by other users appear as owner "nobody")
+    eza.sandbox.method = "landlock";
+    # eza.sandbox.method = "bwrap";
     eza.sandbox.autodetectCliPaths = "existing";
     eza.sandbox.whitelistPwd = true;
     eza.sandbox.extraHomePaths = [
@@ -574,10 +602,6 @@ in
     gawk.sandbox.wrapperType = "inplace";  # /share/gawk libraries refer to /libexec
     gawk.sandbox.autodetectCliPaths = "existingFile";
 
-    gdb.sandbox.enable = false;  # gdb doesn't sandbox well. i don't know how you could.
-    # gdb.sandbox.method = "landlock";  # permission denied when trying to attach, even as root
-    gdb.sandbox.autodetectCliPaths = true;
-
     geoclue2-with-demo-agent = {};
 
     # MS GitHub stores auth token in .config
@@ -604,32 +628,39 @@ in
       "/tmp"  # "Cannot open display:" if it can't mount /tmp 👀
     ];
 
-    "gnome.gnome-calculator".buildCost = 1;
+    gitea = {};
-    "gnome.gnome-calculator".sandbox.method = "bwrap";
-    "gnome.gnome-calculator".sandbox.whitelistWayland = true;
 
-    "gnome.gnome-calendar".buildCost = 1;
+    gnome-calculator.buildCost = 1;
+    gnome-calculator.sandbox.method = "bwrap";
+    gnome-calculator.sandbox.whitelistWayland = true;
+
+    gnome-calendar.buildCost = 1;
     # gnome-calendar surely has data to persist, but i use it strictly to do date math, not track events.
-    "gnome.gnome-calendar".sandbox.method = "bwrap";
+    gnome-calendar.sandbox.method = "bwrap";
-    "gnome.gnome-calendar".sandbox.whitelistWayland = true;
+    gnome-calendar.sandbox.whitelistWayland = true;
 
     # gnome-disks
-    "gnome.gnome-disk-utility".buildCost = 1;
+    gnome-disk-utility.buildCost = 1;
-    "gnome.gnome-disk-utility".sandbox.method = "bwrap";
+    gnome-disk-utility.sandbox.method = "bwrap";
-    "gnome.gnome-disk-utility".sandbox.whitelistDbus = [ "system" ];
+    gnome-disk-utility.sandbox.whitelistDbus = [ "system" ];
-    "gnome.gnome-disk-utility".sandbox.whitelistWayland = true;
+    gnome-disk-utility.sandbox.whitelistWayland = true;
-    "gnome.gnome-disk-utility".sandbox.extraHomePaths = [
+    gnome-disk-utility.sandbox.extraHomePaths = [
       "tmp"
       "use/iso"
       # TODO: probably need /dev and such
     ];
 
+    hping.sandbox.method = "landlock";
+    hping.sandbox.net = "all";
+    hping.sandbox.capabilities = [ "net_raw" ];
+    hping.sandbox.autodetectCliPaths = "existingFile";  # for sending packet data from file
+
     # seahorse: dump gnome-keyring secrets.
-    "gnome.seahorse".buildCost = 1;
+    seahorse.buildCost = 1;
-    # N.B.: it can also manage ~/.ssh keys, but i explicitly don't add those to the sandbox for now.
+    # N.B. it can lso manage ~/.ssh keys, but i explicitly don't add those to the sandbox for now.
-    "gnome.seahorse".sandbox.method = "bwrap";
+    seahorse.sandbox.method = "bwrap";
-    "gnome.seahorse".sandbox.whitelistDbus = [ "user" ];
+    seahorse.sandbox.whitelistDbus = [ "user" ];
-    "gnome.seahorse".sandbox.whitelistWayland = true;
+    seahorse.sandbox.whitelistWayland = true;
 
     gnome-2048.buildCost = 1;
     gnome-2048.sandbox.method = "bwrap";
@@ -654,7 +685,7 @@ in
       "Pictures/Screenshots"
       "Pictures/servo-macros"
     ];
-    gnome-frog.persist.byStore.cryptClearOnBoot = [
+    gnome-frog.persist.byStore.ephemeral = [
       ".local/share/tessdata"  # 15M; dunno what all it is.
     ];
 
@@ -736,7 +767,7 @@ in
     iotop.sandbox.capabilities = [ "net_admin" ];
 
     # provides `ip`, `routel`, `bridge`, others.
-    # landlock works fine for most of these, but `ip netns exec` wants to attach to an existing namespace
+    # landlock works fine for most of these, but `ip netns exec` wants to attach to an existing namespace (which requires sudo)
     # and that means we can't use ANY sandboxer for it.
     iproute2.sandbox.enable = false;
     # iproute2.sandbox.net = "all";
@@ -784,14 +815,23 @@ in
       "tmp"
     ];
 
+    landlock-sandboxer.sandbox.enable = false;  #< sandbox helper
+
     libcamera = {};
 
-    libcap.sandbox.enable = false;  #< for `capsh`, which i use as a sandboxer
+    libcap_ng.sandbox.enable = false;  # TODO: `pscap` can sandbox with bwrap, `captest` and `netcap` with landlock
-    libcap_ng.sandbox.enable = false;  # there's something about /proc/$pid/fd which breaks `readlink`/stat with every sandbox technique (except capsh-only)
 
     libnotify.sandbox.method = "bwrap";
     libnotify.sandbox.whitelistDbus = [ "user" ];  # notify-send
 
+    lightning-cli.packageUnwrapped = pkgs.linkBinIntoOwnPackage pkgs.clightning "lightning-cli";
+    lightning-cli.sandbox.method = "bwrap";
+    lightning-cli.sandbox.extraHomePaths = [
+      ".lightning/bitcoin/lightning-rpc"
+    ];
+    # `lightning-cli` finds its RPC file via `~/.lightning/bitcoin/lightning-rpc`, to message the daemon
+    lightning-cli.fs.".lightning".symlink.target = "/var/lib/clightning";
+
     losslesscut-bin.buildCost = 1;
     losslesscut-bin.sandbox.method = "bwrap";
     losslesscut-bin.sandbox.extraHomePaths = [
@@ -812,14 +852,17 @@ in
 
     lua = {};
 
-    man-pages.sandbox.enable = false;
+    man-pages.sandbox.enable = false;  #< data only
-    man-pages-posix.sandbox.enable = false;
+    man-pages-posix.sandbox.enable = false;  #< data only
 
     mercurial.sandbox.method = "bwrap";  # TODO:sandbox: untested
     mercurial.sandbox.net = "clearnet";
     mercurial.sandbox.whitelistPwd = true;
 
-    mesa-demos = {};
+    mesa-demos.sandbox.method = "bwrap";
+    mesa-demos.sandbox.whitelistDri = true;
+    mesa-demos.sandbox.whitelistWayland = true;
+    mesa-demos.sandbox.whitelistX = true;
 
     # actual monero blockchain (not wallet/etc; safe to delete, just slow to regenerate)
     monero-gui.buildCost = 1;
@@ -865,7 +908,7 @@ in
     nixpkgs-review.sandbox.extraPaths = [
       "/nix"
     ];
-    nixpkgs-review.persist.byStore.cryptClearOnBoot = [
+    nixpkgs-review.persist.byStore.ephemeral = [
       ".cache/nixpkgs-review"  #< help it not exhaust / tmpfs
     ];
 
@@ -916,7 +959,7 @@ in
       "/sys/devices"
     ];
 
-    "perlPackages.FileMimeInfo".sandbox.enable = false;  #< TODO: sandbox `mimetype` but not `mimeopen`.
+    "perlPackages.FileMimeInfo" = {};
 
     powertop.sandbox.method = "landlock";
     powertop.sandbox.capabilities = [ "ipc_lock" "sys_admin" ];
@@ -949,7 +992,9 @@ in
 
     python3-repl.packageUnwrapped = pkgs.python3.withPackages (ps: with ps; [
       psutil
+      pykakasi
       requests
+      unidecode
     ]);
     python3-repl.sandbox.method = "bwrap";
     python3-repl.sandbox.net = "clearnet";
@@ -977,9 +1022,17 @@ in
     sane-weather.sandbox.method = "bwrap";
     sane-weather.sandbox.net = "clearnet";
 
+    sc-im.sandbox.method = "bwrap";
+    sc-im.sandbox.autodetectCliPaths = "existingFile";
+
     screen.sandbox.enable = false;  #< tty; needs to run anything
 
-    sequoia.sandbox.method = "bwrap";  # TODO:sandbox: untested
+    sequoia.packageUnwrapped = pkgs.sequoia.overrideAttrs (_: {
+      # XXX(2024-07-30): sq_autocrypt_import test failure: "Warning: 9B7DD433F254904A is expired."
+      doCheck = false;
+    });
+    sequoia.buildCost = 1;
+    sequoia.sandbox.method = "bwrap";
     sequoia.sandbox.whitelistPwd = true;
     sequoia.sandbox.autodetectCliPaths = "existingFileOrParent";  # supports `-o <file-to-create>`
 
@@ -1007,7 +1060,7 @@ in
     # TODO: enable dma heaps for more efficient buffer sharing: <https://gitlab.com/postmarketOS/pmaports/-/issues/2789>
     snapshot = {};
 
-    sops.sandbox.method = "bwrap";  # TODO:sandbox: untested
+    sops.sandbox.method = "bwrap";
     sops.sandbox.extraHomePaths = [
       ".config/sops"
       "nixos"
@@ -1023,7 +1076,9 @@ in
       "Music"
       "tmp"
       "use"
+      ".config/dconf"
     ];
+    soundconverter.sandbox.whitelistDbus = [ "user" ];  # for dconf
     soundconverter.sandbox.extraPaths = [
       "/mnt/servo/media/Music"
       "/mnt/servo/media/games"
@@ -1046,7 +1101,16 @@ in
 
     sqlite = {};
 
-    sshfs-fuse = {};  # used by fs.nix
+    sshfs-fuse.sandbox.method = "bwrap";  #< N.B. if you call this from the CLI -- without `mount.fuse` -- set this to `none`
+    sshfs-fuse.sandbox.net = "all";
+    sshfs-fuse.sandbox.autodetectCliPaths = "parent";
+    # sshfs-fuse.sandbox.extraPaths = [
+    #   "/dev/fd"  # fuse.mount3 -o drop_privileges passes us data over /dev/fd/3
+    #   "/mnt"  # XXX: not sure why i need all this, instead of just /mnt/desko, or /mnt/desko/home, etc
+    # ];
+    sshfs-fuse.sandbox.extraHomePaths = [
+      ".ssh/id_ed25519"  #< TODO: add -o foo,bar=path/to/thing style arguments to autodetection
+    ];
 
     strace.sandbox.enable = false;  #< needs to `exec` its args, and therefore support *anything*
 
@@ -1088,7 +1152,7 @@ in
     tumiki-fighters.sandbox.whitelistWayland = true;
     tumiki-fighters.sandbox.whitelistX = true;
 
-    util-linux.sandbox.enable = false;  #< TODO: possible to sandbox if i specific a different profile for each of its ~50 binaries
+    util-linux.sandbox.enable = false;  #< TODO: possible to sandbox if i specify a different profile for each of its ~50 binaries
 
     unzip.sandbox.method = "bwrap";
     unzip.sandbox.autodetectCliPaths = "existingOrParent";
@@ -1103,9 +1167,6 @@ in
     valgrind.buildCost = 1;
     valgrind.sandbox.enable = false;  #< it's a launcher: can't sandbox
 
-    visidata.sandbox.method = "bwrap";  # TODO:sandbox: untested
-    visidata.sandbox.autodetectCliPaths = true;
-
     # `vulkaninfo`, `vkcube`
     vulkan-tools.sandbox.method = "landlock";
 
@@ -1137,10 +1198,12 @@ in
 
     # `wg`, `wg-quick`
     wireguard-tools.sandbox.method = "landlock";
+    wireguard-tools.sandbox.net = "all";
     wireguard-tools.sandbox.capabilities = [ "net_admin" ];
 
     # provides `iwconfig`, `iwlist`, `iwpriv`, ...
     wirelesstools.sandbox.method = "landlock";
+    wirelesstools.sandbox.net = "all";
     wirelesstools.sandbox.capabilities = [ "net_admin" ];
 
     wl-clipboard.sandbox.method = "bwrap";
@@ -1160,11 +1223,9 @@ in
 
     yarn.persist.byStore.plaintext = [ ".cache/yarn" ];
 
-    yt-dlp.sandbox.method = "bwrap";  # TODO:sandbox: untested
+    yt-dlp.sandbox.method = "bwrap";
     yt-dlp.sandbox.net = "all";
     yt-dlp.sandbox.whitelistPwd = true;  # saves to pwd by default
-
-    zfs = {};
   };
 
   sane.persist.sys.byStore.plaintext = lib.mkIf config.sane.programs.guiApps.enabled [
@@ -1181,13 +1242,12 @@ in
     ];
   };
 
-  hardware.opengl = lib.mkIf config.sane.programs.guiApps.enabled ({
+  hardware.graphics = lib.mkIf config.sane.programs.guiApps.enabled ({
     enable = true;
-    driSupport = lib.mkDefault true;
   } // (lib.optionalAttrs pkgs.stdenv.isx86_64 {
     # for 32 bit applications
-    # upstream nixpkgs forbids setting driSupport32Bit unless specifically x86_64 (so aarch64 isn't allowed)
+    # upstream nixpkgs forbids setting enable32Bit unless specifically x86_64 (so aarch64 isn't allowed)
-    driSupport32Bit = lib.mkDefault true;
+    enable32Bit = lib.mkDefault true;
   }));
 
   system.activationScripts.notifyActive = lib.mkIf config.sane.programs.guiApps.enabled {
@@ -1195,7 +1255,7 @@ in
         ''
           tryNotifyUser() {
             local user="$1"
-            local new_path="$PATH:${pkgs.sudo}/bin:${pkgs.libnotify}/bin"
+            local new_path="$PATH:/etc/profiles/per-user/$user/bin:${pkgs.sudo}/bin:${pkgs.libnotify}/bin"
             local version="$(cat $systemConfig/nixos-version)"
             PATH="$new_path" sudo -u "$user" \
               env PATH="$new_path" NIXOS_VERSION="$version" /bin/sh -c \
@@ -1203,7 +1263,7 @@ in
           }
         ''
       ] ++ lib.mapAttrsToList
-        (user: en: lib.optionalString en "tryNotifyUser ${user}")
+        (user: en: lib.optionalString en "tryNotifyUser ${user} > /dev/null")
         config.sane.programs.guiApps.enableFor.user
     );
   };

hosts/common/programs/ausyscall.nix

@@ -2,7 +2,7 @@
 { pkgs, ... }:
 {
   sane.programs.ausyscall = {
-    packageUnwrapped = pkgs.linkIntoOwnPackage pkgs.audit "bin/ausyscall";
+    packageUnwrapped = pkgs.linkBinIntoOwnPackage pkgs.audit "ausyscall";
 
     sandbox.method = "landlock";
   };

hosts/common/programs/avahi.nix

@@ -0,0 +1,91 @@
+# Avahi zeroconf (mDNS) implementation.
+# runs as systemd `avahi-daemon.service`
+#
+# - <https://avahi.org/>
+# - code: <https://github.com/avahi/avahi>
+# - IRC: #avahi on irc.libera.chat
+#
+# - `avahi-browse --help` for usage
+# - `man avahi-daemon.conf`
+# - `LD_LIBRARY_PATH=/nix/store/ngwj3jqmxh8k4qji2z0lj7y1f8vzqrn2-nss-mdns-0.15.1/lib getent hosts desko.local`
+#   nss-mdns goes through avahi-daemon, so there IS caching here
+#
+{ config, lib, pkgs, ... }:
+{
+  sane.programs.avahi = {
+    packageUnwrapped = pkgs.avahi.overrideAttrs (upstream: {
+      # avahi wants to do its own sandboxing opaque to systemd & maybe in conflict with my bwrap.
+      # --no-drop-root disables that, so that i can e.g. run it as User=avahi, etc.
+      # do this here, because the service isn't so easily patched.
+      postInstall = (upstream.postInstall or "") + ''
+        wrapProgram "$out/sbin/avahi-daemon" \
+          --add-flags --no-drop-root
+      '';
+      nativeBuildInputs = upstream.nativeBuildInputs ++ [
+        pkgs.makeBinaryWrapper
+      ];
+    });
+    sandbox.method = "bwrap";
+    sandbox.whitelistDbus = [ "system" ];
+    sandbox.net = "all";  #< otherwise it will show 'null' in place of each interface name.
+    sandbox.extraPaths = [
+      "/"  #< TODO: decrease this, but be weary that the daemon might exit immediately
+    ];
+  };
+  services.avahi = lib.mkIf config.sane.programs.avahi.enabled {
+    enable = true;
+    package = config.sane.programs.avahi.package;
+    publish.enable = true;
+    publish.userServices = true;
+    nssmdns4 = true;
+    nssmdns6 = true;
+    # reflector = true;
+    allowInterfaces = [
+      # particularly, the default config disallows loopback, which is kinda fucking retarded, right?
+      "ens1"  #< servo
+      "enp5s0"  #< desko
+      "eth0"
+      "lo"
+      "wg-home"
+      "wlan0"  #< moby
+      "wlp3s0"  #< lappy
+      "wlp4s0"  #< desko
+    ];
+  };
+
+  systemd.services.avahi-daemon = lib.mkIf config.sane.programs.avahi.enabled {
+    # hardening: see `systemd-analyze security avahi-daemon`
+    serviceConfig.User = "avahi";
+    serviceConfig.Group = "avahi";
+    serviceConfig.AmbientCapabilities = "";
+    serviceConfig.CapabilityBoundingSet = "";
+    serviceConfig.LockPersonality = true;
+    serviceConfig.MemoryDenyWriteExecute = true;
+    serviceConfig.NoNewPrivileges = true;
+    serviceConfig.PrivateDevices = true;
+    serviceConfig.PrivateMounts = true;
+    serviceConfig.PrivateTmp = true;
+    serviceConfig.PrivateUsers = true;
+    serviceConfig.ProcSubset = "all";
+    serviceConfig.ProtectClock = true;
+    serviceConfig.ProtectControlGroups = true;
+    serviceConfig.ProtectHome = true;
+    serviceConfig.ProtectHostname = true;
+    serviceConfig.ProtectKernelLogs = true;
+    serviceConfig.ProtectKernelModules = true;
+    serviceConfig.ProtectKernelTunables = true;
+    serviceConfig.ProtectProc = "noaccess";
+    serviceConfig.ProtectSystem = "strict";
+    serviceConfig.RemoveIPC = true;  #< this *might* slow down the initial connection?
+    serviceConfig.RestrictAddressFamilies = "AF_UNIX AF_INET AF_INET6 AF_NETLINK";
+    serviceConfig.RestrictRealtime = true;
+    serviceConfig.RestrictSUIDSGID = true;
+    serviceConfig.SystemCallArchitectures = "native";
+    serviceConfig.SystemCallFilter = [
+      "@system-service"
+      "@mount"
+      "~@resources"
+      # "~@privileged"
+    ];
+  };
+}

hosts/common/programs/bemenu.nix

@@ -95,7 +95,7 @@ in
 
     packageUnwrapped = pkgs.bemenu.overrideAttrs (upstream: {
       nativeBuildInputs = (upstream.nativeBuildInputs or []) ++ [
-        pkgs.makeWrapper
+        pkgs.makeBinaryWrapper
       ];
       # can alternatively be specified as CLI flags
       postInstall = (upstream.postInstall or "") + ''

hosts/common/programs/bitcoin-cli.nix

@@ -0,0 +1,13 @@
+{ pkgs, ... }:
+{
+  sane.programs.bitcoin-cli = {
+    packageUnwrapped = pkgs.linkBinIntoOwnPackage pkgs.bitcoind "bitcoin-cli";
+    sandbox.method = "bwrap";
+    sandbox.autodetectCliPaths = "existing";  #< for `bitcoin-cli -datadir=/var/lib/...`
+    sandbox.extraHomePaths = [
+      ".bitcoin/bitcoin.conf"
+    ];
+    sandbox.net = "all";  # actually needs only localhost
+    secrets.".bitcoin/bitcoin.conf" = ../../../secrets/servo/bitcoin.conf.bin;
+  };
+}

hosts/common/programs/blast-ugjka/blast-to-default

@@ -1,5 +1,5 @@
 #!/usr/bin/env nix-shell
-#!nix-shell -i python3 -p "python3.withPackages (ps: [  ])" -p blast-ugjka
+#!nix-shell -i python3 -p blast-ugjka -p python3
 # vim: set filetype=python :
 
 import logging

hosts/common/programs/blast-ugjka/default.nix

@@ -31,7 +31,7 @@ in
 
   sane.programs.blast-to-default = {
     # helper to deal with blast's interactive CLI
-    packageUnwrapped = pkgs.static-nix-shell.mkPython3Bin {
+    packageUnwrapped = pkgs.static-nix-shell.mkPython3 {
       pname = "blast-to-default";
       pkgs = [ "blast-ugjka" ];
       srcRoot = ./.;

hosts/common/programs/bonsai.nix

@@ -111,7 +111,7 @@ in
       '';
     });
 
-    fs.".config/bonsai/bonsai_tree.json".symlink.text = builtins.toJSON cfg.config.transitions;
+    fs.".config/bonsai/bonsai_tree.json".symlink.target = pkgs.writers.writeJSON "bonsai_tree.json" cfg.config.transitions;
 
     sandbox.method = "bwrap";
     sandbox.extraRuntimePaths = [

hosts/common/programs/brave.nix

@@ -21,7 +21,7 @@
     sandbox.whitelistDri = true;
     sandbox.whitelistWayland = true;
 
-    persist.byStore.cryptClearOnBoot = [
+    persist.byStore.ephemeral = [
       ".cache/BraveSoftware"
       ".config/BraveSoftware"
     ];

hosts/common/programs/callaudiod.nix

@@ -13,7 +13,7 @@
   sane.programs.callaudiod = {
     packageUnwrapped = pkgs.rmDbusServices pkgs.callaudiod;
 
-    # probably more needed once i enable proper sandboxing, but for now this ensures the service isn't started too early!
+    sandbox.method = "bwrap";
     sandbox.whitelistAudio = true;
     sandbox.whitelistDbus = [ "user" ];
 

hosts/common/programs/calls.nix

@@ -24,7 +24,23 @@ in
       };
     };
 
-    packageUnwrapped = pkgs.calls.overrideAttrs (upstream: {
+    packageUnwrapped = pkgs.rmDbusServicesInPlace ((pkgs.calls.override {
+      gtk3 = pkgs.gtk4;
+      libpeas = pkgs.libpeas2;
+      wrapGAppsHook3 = pkgs.wrapGAppsHook4;
+    }).overrideAttrs (upstream: {
+      # XXX(2024-08-08): v46.3 has a bug where if it has no network connection on launch, it forever stays disconnected & never retries
+      version = "47_beta.0-unstable-2024-08-08";
+      src = lib.warnIf (lib.versionOlder "47.0" upstream.version) "gnome-calls outdated; remove src override? (keep UI patches though!)" pkgs.fetchFromGitLab {
+        domain = "gitlab.gnome.org";
+        owner = "GNOME";
+        repo = "calls";
+        fetchSubmodules = true;
+        # rev = "main";
+        rev = "ff213579a52222e7c95e585843d97b5b817b2a8b";
+        hash = "sha256-0QYC8FJpfg/X2lIjBDooba2idUfpJNQhcpv8Z5I/B4k=";
+      };
+
       patches = (upstream.patches or []) ++ [
         (pkgs.fetchpatch {
           # usability improvement... if the UI is visible, then i can receive calls. otherwise, i can't!
@@ -33,10 +49,18 @@ in
           hash = "sha256-NoVQV2TlkCcsBt0uwSyK82hBKySUW4pADrJVfLFvWgU=";
         })
       ];
-    });
+
+      nativeBuildInputs = upstream.nativeBuildInputs ++ [
+        pkgs.dbus  #< for dbus-run-session (should be test only, but it's not)
+      ];
+
+      buildInputs = upstream.buildInputs ++ [
+        pkgs.libadwaita
+      ];
+    }));
 
     sandbox.method = "bwrap";
-    sandbox.net = "clearnet";
+    sandbox.net = "vpn.wg-home";  #< XXX(2024/07/05): my cell carrier seems to block RTP, so tunnel it.
     sandbox.whitelistAudio = true;
     sandbox.whitelistDbus = [ "user" ];  # necessary for secrets, at the minimum
     sandbox.whitelistWayland = true;

hosts/common/programs/capsh.nix

@@ -0,0 +1,7 @@
+{ pkgs, ... }:
+{
+  sane.programs.capsh = {
+    packageUnwrapped = pkgs.linkBinIntoOwnPackage pkgs.libcap "capsh";
+    sandbox.enable = false;  #< i use `capsh` as a sandboxer.
+  };
+}

hosts/common/programs/captree.nix

@@ -0,0 +1,8 @@
+{ pkgs, ... }:
+{
+  sane.programs.captree = {
+    packageUnwrapped = pkgs.linkBinIntoOwnPackage pkgs.libcap-with-captree "captree";
+    sandbox.method = "bwrap";
+    sandbox.isolatePids = false;
+  };
+}

hosts/common/programs/conky/conky.conf

@@ -66,6 +66,7 @@ end
 if vars.percent ~= nil then
   bat_args = bat_args .. " --percent-suffix '" .. vars.percent .. "'"
 end
+bat_args = bat_args .. " {bat}"
 
 -- N.B.: `[[ <text> ]]` is Lua's multiline string literal
 conky.text = [[
@@ -73,8 +74,8 @@ ${color1}${shadecolor 707070}${font sans-serif:size=50:style=Bold}${alignc}${exe
 ${color2}${shadecolor a4d7d0}${font sans-serif:size=20}${alignc}${exec date +"%a %d %b"}${font}
 
 
-${color1}${shadecolor}${font sans-serif:size=22:style=Bold}${alignc}${execp @bat@ ]] .. bat_args .. [[ }${font}
+${color1}${shadecolor}${font sans-serif:size=22:style=Bold}${alignc}${execp sane-sysload ]] .. bat_args .. [[ }${font}
-${color1}${shadecolor}${font sans-serif:size=20:style=Bold}${alignc}${texeci 600 @weather@ }${font}
+${color1}${shadecolor}${font sans-serif:size=20:style=Bold}${alignc}${texeci 600 timeout 20 sane-weather }${font}
 
 
 ${color2}${shadecolor a4d7d0}${font sans-serif:size=16}${alignc}⇅ ${downspeedf wlan0}]] .. vars.kBps .. [[${font}

hosts/common/programs/conky/default.nix

@@ -5,22 +5,18 @@
     sandbox.net = "clearnet";  #< for the scripts it calls (weather)
     sandbox.extraPaths = [
       "/sys/class/power_supply"
-      "/sys/devices"  # needed by sane-sysinfo
+      "/sys/devices"  # needed by sane-sysload
       # "/sys/devices/cpu"
       # "/sys/devices/system"
     ];
     sandbox.whitelistWayland = true;
 
     suggestedPrograms = [
-      "sane-sysinfo"
+      "sane-sysload"
       "sane-weather"
     ];
 
-    fs.".config/conky/conky.conf".symlink.target = pkgs.substituteAll {
+    fs.".config/conky/conky.conf".symlink.target = ./conky.conf;
-      src = ./conky.conf;
-      bat = "sane-sysinfo";
-      weather = "timeout 20 sane-weather";
-    };
 
     services.conky = {
       description = "conky dynamic desktop background";

hosts/common/programs/curl.nix

@@ -0,0 +1,8 @@
+{ ... }:
+{
+  sane.programs.curl = {
+    sandbox.method = "bwrap";
+    sandbox.net = "all";
+    sandbox.autodetectCliPaths = "parent";  #< for `-o` option
+  };
+}

hosts/common/programs/curlftpfs.nix

@@ -1,35 +1,8 @@
 { pkgs, ... }:
 {
   sane.programs.curlftpfs = {
-    packageUnwrapped = pkgs.curlftpfs.overrideAttrs (upstream: {
+    packageUnwrapped = pkgs.curlftpfs-sane;
-      # my fork includes:
+    sandbox.method = "bwrap";
-      # - per-operation timeouts (CURLOPT_TIMEOUT; would use CURLOPT_LOW_SPEED_TIME/CURLOPT_LOW_SPEED_LIMIT but they don't apply)
+    sandbox.net = "all";
-      #   - exit on timeout (so that one knows to abort the mount, instead of waiting indefinitely)
-      # - support for "meta" keys found in /etc/fstab
-      src = pkgs.fetchFromGitea {
-        domain = "git.uninsane.org";
-        owner = "colin";
-        repo = "curlftpfs";
-        rev = "0890d32e709b5a01153f00d29ed4c00299744f5d";
-        hash = "sha256-M28PzHqEAkezQdtPeL16z56prwl3BfMZqry0dlpXJls=";
-      };
-      # `mount` clears PATH before calling the mount helper (see util-linux/lib/env.c),
-      # so the traditional /etc/fstab approach of fstype=fuse and device = curlftpfs#URI doesn't work.
-      # instead, install a `mount.curlftpfs` mount helper. this is what programs like `gocryptfs` do.
-      postInstall = (upstream.postInstall or "") + ''
-        ln -s curlftpfs $out/bin/mount.fuse.curlftpfs
-        ln -s curlftpfs $out/bin/mount.curlftpfs
-      '';
-    });
-
-    # TODO: try to sandbox this better? maybe i can have fuse (unsandboxed) invoke curlftpfs (sandboxed)?
-    # - landlock gives EPERM
-    # - bwrap just silently doesn't mount it, maybe because of setuid stuff around fuse?
-    # sandbox.method = "capshonly";
-    # sandbox.net = "all";
-    # sandbox.capabilities = [
-    #   "sys_admin"
-    #   "sys_module"
-    # ];
   };
 }

hosts/common/programs/default.nix

@@ -10,7 +10,9 @@
     ./assorted.nix
     ./audacity.nix
     ./ausyscall.nix
+    ./avahi.nix
     ./bemenu.nix
+    ./bitcoin-cli.nix
     ./blast-ugjka
     ./bonsai.nix
     ./brave.nix
@@ -19,12 +21,15 @@
     ./callaudiod.nix
     ./calls.nix
     ./cantata.nix
+    ./capsh.nix
+    ./captree.nix
     ./catt.nix
     ./celeste64.nix
     ./chatty.nix
     ./conky
     ./cozy.nix
     ./cups.nix
+    ./curl.nix
     ./curlftpfs.nix
     ./dbus.nix
     ./dconf.nix
@@ -39,10 +44,13 @@
     ./epiphany.nix
     ./errno.nix
     ./evince.nix
+    ./exiftool.nix
     ./fcitx5.nix
     ./feedbackd.nix
     ./firefox.nix
+    ./firefox-xdg-open.nix
     ./flare-signal.nix
+    ./foliate.nix
     ./fontconfig.nix
     ./fractal.nix
     ./free.nix
@@ -50,8 +58,11 @@
     ./fwupd.nix
     ./g4music.nix
     ./gajim.nix
+    ./gdb.nix
     ./gdbus.nix
     ./geary.nix
+    ./geoclue-demo-agent.nix
+    ./geoclue2.nix
     ./git.nix
     ./gnome-clocks.nix
     ./gnome-feeds.nix
@@ -59,7 +70,10 @@
     ./gnome-maps.nix
     ./gnome-weather.nix
     ./go2tv.nix
+    ./gocryptfs.nix
     ./gpodder.nix
+    ./gpsd.nix
+    ./gps-share.nix
     ./grimshot.nix
     ./gst-device-monitor.nix
     ./gthumb.nix
@@ -67,13 +81,16 @@
     ./handbrake.nix
     ./helix.nix
     ./htop
+    ./iio-sensor-proxy.nix
     ./imagemagick.nix
     ./jellyfin-media-player.nix
     ./kdenlive.nix
+    ./keymapp.nix
     ./komikku.nix
     ./koreader
     ./less.nix
     ./lftp.nix
+    ./lgtrombetta-compass.nix
     ./libreoffice.nix
     ./lemoa.nix
     ./loupe.nix
@@ -81,16 +98,19 @@
     ./megapixels.nix
     ./mepo.nix
     ./mimeo
+    ./mimetype.nix
     ./mmcli.nix
     ./mopidy.nix
     ./mpv
     ./msmtp.nix
     ./nautilus.nix
     ./neovim.nix
+    ./networkmanager_dmenu
     ./newsflash.nix
     ./nheko.nix
     ./nicotine-plus.nix
     ./nix-index.nix
+    ./nix.nix
     ./nmcli.nix
     ./notejot.nix
     ./ntfy-sh.nix
@@ -98,25 +118,34 @@
     ./objdump.nix
     ./obsidian.nix
     ./offlineimap.nix
+    ./ols.nix
     ./open-in-mpv.nix
     ./pactl.nix
-    ./pipewire.nix
+    ./pidof.nix
+    ./pipewire
+    ./pkill.nix
     ./planify.nix
     ./portfolio-filemanager.nix
     ./playerctl.nix
     ./ps.nix
+    ./qmk-udev-rules.nix
     ./rhythmbox.nix
     ./ripgrep.nix
     ./rofi
+    ./rsyslog
     ./rtkit.nix
     ./s6-rc.nix
+    ./sane-deadlines.nix
     ./sane-input-handler
     ./sane-open.nix
+    ./sane-private-unlock-remote.nix
     ./sane-screenshot.nix
     ./sane-scripts.nix
-    ./sane-sysinfo.nix
+    ./sane-secrets-unlock.nix
+    ./sane-sysload.nix
     ./sane-theme.nix
     ./sanebox.nix
+    ./satellite.nix
     ./schlock.nix
     ./seatd.nix
     ./sfeed.nix
@@ -136,14 +165,18 @@
     ./swaylock.nix
     ./swaynotificationcenter
     ./switchboard.nix
-    ./sysvol.nix
+    ./syshud.nix
     ./tangram.nix
     ./tor-browser.nix
     ./tuba.nix
     ./unl0kr
+    ./via.nix
+    ./visidata.nix
     ./vlc.nix
+    ./wally-cli.nix
     ./waybar
     ./waylock.nix
+    ./where-am-i.nix
     ./wike.nix
     ./wine.nix
     ./wireplumber.nix
@@ -151,14 +184,18 @@
     ./wvkbd.nix
     ./xarchiver.nix
     ./xdg-desktop-portal.nix
+    ./xdg-desktop-portal-gnome
     ./xdg-desktop-portal-gtk.nix
     ./xdg-desktop-portal-wlr.nix
     ./xdg-terminal-exec.nix
     ./xdg-utils.nix
+    ./youtube-tui.nix
     ./zathura.nix
     ./zeal.nix
     ./zecwallet-lite.nix
     ./zulip.nix
+    ./zsa-udev-rules.nix
+    ./zfs-tools.nix
     ./zsh
   ];
 

hosts/common/programs/dino.nix

@@ -50,32 +50,13 @@ in
       };
     };
 
-    packageUnwrapped = (pkgs.dino.override {
+    packageUnwrapped = pkgs.dino.override {
       # XXX(2024/04/24): build without echo cancelation (i.e. force WITH_VOICE_PROCESSOR to be undefined).
       # this means that if the other end of the call is on speaker phone, i'm liable to hear my own voice
       # leave their speaker, enter their mic, and then return to me.
       # the benefit is a >50% reduction in CPU use. insignificant on any modern PC; make-or-break on a low-power Pinephone.
       webrtc-audio-processing = null;
-    }).overrideAttrs (upstream: {
+    };
-      # i'm updating experimentally to see if it improves call performance.
-      # i don't *think* this is actually necessary; i don't notice any difference.
-      version = "0.4.3-unstable-2024-04-28";
-      src = lib.warnIf (lib.versionOlder "0.4.3" upstream.version) "dino update: safe to remove sane patches" pkgs.fetchFromGitHub {
-        owner = "dino";
-        repo = "dino";
-        rev = "657502955567dd538e56f300e075c7db52e25d74";
-        hash = "sha256-SApJy9FgxxLOB5A/zGtpdFZtSqSiS03vggRrCte1tFE=";
-      };
-      # avoid double-application of upstreamed patches
-      # https://github.com/NixOS/nixpkgs/pull/309265
-      patches = [];
-      checkPhase = ''
-        runHook preCheck
-        ./xmpp-vala-test
-        # ./signal-protocol-vala-test  # doesn't exist anymore
-        runHook postCheck
-      '';
-    });
 
     sandbox.method = "bwrap";
     sandbox.net = "clearnet";

hosts/common/programs/eg25-control.nix

@@ -6,6 +6,17 @@ in
   sane.programs.eg25-control = {
     suggestedPrograms = [ "mmcli" ];
 
+    sandbox.method = "bwrap";
+    sandbox.extraPaths = [
+      "/sys/class/modem-power"
+      "/sys/devices"
+      # "/var/lib/eg25-control"
+    ];
+    sandbox.net = "all";  #< for downloading the almanac
+    sandbox.whitelistDbus = [
+      "system"  #< used by `mmcli`
+    ];
+
     services.eg25-control-powered = {
       description = "eg25-control-powered: power to the Qualcomm eg25 modem used by PinePhone";
       startCommand = "eg25-control --power-on --verbose";
@@ -21,6 +32,7 @@ in
       startCommand = "eg25-control --enable-gps --dump-debug-info --verbose";
       cleanupCommand = "eg25-control --disable-gps --dump-debug-info --verbose";
       depends = [ "eg25-control-powered" ];
+      partOf = [ "gps" ];
     };
 
     persist.byStore.plaintext = [ ".cache/eg25-control" ];  #< for cached agps data

hosts/common/programs/element-desktop.nix

@@ -45,6 +45,9 @@
       "Videos/servo"
       "tmp"
     ];
+    sandbox.extraPaths = [
+      "/dev/snd"  #< needed only when playing embedded audio (not embedded video!)
+    ];
 
     # creds/session keys, etc
     persist.byStore.private = [ ".config/Element" ];

hosts/common/programs/errno.nix

@@ -1,19 +1,15 @@
 { pkgs, ... }:
 {
   sane.programs.errno = {
-    # packageUnwrapped = pkgs.linkIntoOwnPackage pkgs.moreutils "bin/errno";
+    # packageUnwrapped = pkgs.linkBinIntoOwnPackage pkgs.moreutils "errno";
     # actually, don't build all of moreutils because not all of it builds for cross targets.
-    # some of this can be simplified after <https://github.com/NixOS/nixpkgs/pull/316446>
     packageUnwrapped = pkgs.moreutils.overrideAttrs (base: {
       makeFlags = (base.makeFlags or []) ++ [
         "BINS=errno"
         "MANS=errno.1"
         "PERLSCRIPTS=errno"  #< Makefile errors if empty, but this works :)
-        "INSTALL_BIN=install"
       ];
-      #v disable the perl-specific stuff
+      buildInputs = [];  #< errno has no runtime perl deps, and they don't cross compile, so disable them.
-      propagatedBuildInputs = [];
-      postInstall = "";
     });
 
     sandbox.method = "landlock";

hosts/common/programs/exiftool.nix

@@ -0,0 +1,7 @@
+{ ... }:
+{
+  sane.programs.exiftool = {
+    sandbox.method = "bwrap";
+    sandbox.autodetectCliPaths = "existingFile";
+  };
+}

hosts/common/programs/feedbackd.nix

@@ -55,7 +55,7 @@ in
     # - theme-demo
     # - timeout-completed
     # - window-close
-    fs.".config/feedbackd/themes/proxied.json".symlink.text = builtins.toJSON {
+    fs.".config/feedbackd/themes/proxied.json".symlink.target = pkgs.writers.writeJSON "proxied.json" {
       name = "proxied";
       parent-theme = "default";
       profiles = [

hosts/common/programs/firefox-xdg-open.nix

@@ -0,0 +1,13 @@
+{ pkgs, ... }:
+{
+  sane.programs.firefox-xdg-open = {
+    packageUnwrapped = pkgs.firefox-extensions.firefox-xdg-open.systemComponent;
+
+    sandbox.method = "bwrap";
+    sandbox.whitelistDbus = [ "user" ];  # for xdg-open/portals
+
+    mime.associations."x-scheme-handler/xdg-open" = "xdg-open.desktop";
+
+    suggestedPrograms = [ "xdg-utils" ];
+  };
+}

hosts/common/programs/firefox.nix

@@ -105,6 +105,33 @@ let
     };
     # extraPrefs = ...
   }).overrideAttrs (base: {
+    nativeBuildInputs = (base.nativeBuildInputs or []) ++ [
+      pkgs.copyDesktopItems
+    ];
+    desktopItems = (base.desktopItems or []) ++ [
+      (pkgs.makeDesktopItem {
+        name = "${cfg.browser.libName}-in-vpn";
+        desktopName = "${cfg.browser.libName} (VPN)";
+        genericName = "Web Browser";
+        # N.B.: --new-instance ensures we don't reuse an existing differenty-namespaced instance.
+        # OTOH, it may error about "only one instance can run at a time": close the other instance if you see that.
+        exec = "${lib.getExe pkgs.sane-scripts.vpn} do default -- ${cfg.browser.libName} --new-instance";
+        icon = cfg.browser.libName;
+        categories = [ "Network" "WebBrowser" ];
+        type = "Application";
+      })
+      (pkgs.makeDesktopItem {
+        name = "${cfg.browser.libName}-stub-dns";
+        desktopName = "${cfg.browser.libName} (stub DNS)";
+        genericName = "Web Browser";
+        # N.B.: --new-instance ensures we don't reuse an existing differently-namespaced instance.
+        # OTOH, it may error about "only one instance can run at a time": close the other instance if you see that.
+        exec = "${lib.getExe pkgs.sane-scripts.vpn} do none -- ${cfg.browser.libName} --new-instance";
+        icon = cfg.browser.libName;
+        categories = [ "Network" "WebBrowser" ];
+        type = "Application";
+      })
+    ];
     # de-associate `ctrl+shift+c` from activating the devtools.
     # based on <https://stackoverflow.com/a/54260938>
     # TODO: could use `zip -f` to only update the one changed file, instead of rezipping everything.
@@ -130,7 +157,8 @@ let
       echo "omni.ja AFTER:"
       ls -l $out/lib/${cfg.browser.libName}/browser/omni.ja
 
-      # runHook postFixup to allow sane.programs sandbox wrappers to wrap the binaries
+      runHook postBuild
+      runHook postInstall
       runHook postFixup
     '';
   });
@@ -160,7 +188,7 @@ let
       persistCache = mkOption {
         description = "optional store name to which persist browser cache";
         type = types.nullOr types.str;
-        default = "cryptClearOnBoot";
+        default = "ephemeral";
       };
       addons = mkOption {
         type = types.attrsOf addonOpts;
@@ -203,6 +231,11 @@ in
           package = pkgs.firefox-extensions.ether-metamask;
           enable = lib.mkDefault false;  # until i can disable the first-run notification
         };
+        firefox-xdg-open = {
+          # test: `xdg-open xdg-open:https://uninsane.org`
+          package = pkgs.firefox-extensions.firefox-xdg-open;
+          enable = lib.mkDefault true;
+        };
         i2p-in-private-browsing = {
           package = pkgs.firefox-extensions.i2p-in-private-browsing;
           enable = lib.mkDefault config.services.i2p.enable;
@@ -214,7 +247,7 @@ in
         open-in-mpv = {
           # test: `open-in-mpv 'mpv:///open?url=https://www.youtube.com/watch?v=dQw4w9WgXcQ'`
           package = pkgs.firefox-extensions.open-in-mpv;
-          enable = lib.mkDefault config.sane.programs.open-in-mpv.enabled;
+          enable = lib.mkDefault false;
         };
         sidebery = {
           package = pkgs.firefox-extensions.sidebery;
@@ -263,13 +296,15 @@ in
           # TODO: find a way to not expose ~/.ssh to firefox
           # - unlock sops at login (or before firefox launch)?
           # - see if ssh has a more formal type of subkey system?
-          ".ssh/id_ed25519"
+          # ".ssh/id_ed25519"
           # ".config/sops"
           "knowledge/secrets/accounts"
         ];
         fs.".config/sops".dir = lib.mkIf cfg.addons.browserpass-extension.enable {};  #< needs to be created, not *just* added to the sandbox
 
-        suggestedPrograms = [
+        suggestedPrograms = lib.optionals cfg.addons.firefox-xdg-open.enable [
+          "firefox-xdg-open"
+        ] ++ lib.optionals cfg.addons.open-in-mpv.enable [
           "open-in-mpv"
         ];
 
@@ -341,13 +376,11 @@ in
           // configure which extensions are visible by default (TODO: requires a lot of trial and error)
           // defaultPref("browser.uiCustomization.state", ...);
 
-          // auto-open mpv:// URIs without prompting.
+          // auto-open specific URI schemes without prompting:
-          // can do this with other protocols too (e.g. matrix?). see about:config for common handlers.
+          defaultPref("network.protocol-handler.external.xdg-open", true); // for firefox-xdg-open extension
-          defaultPref("network.protocol-handler.external.mpv", true);
+          defaultPref("network.protocol-handler.external.mpv", true); // for open-in-mpv extension
-          // element:// for Element matrix client
+          defaultPref("network.protocol-handler.external.element", true); // for Element matrix client
-          defaultPref("network.protocol-handler.external.element", true);
+          defaultPref("network.protocol-handler.external.matrix", true); // for Nheko matrix client
-          // matrix: for Nheko matrix client
-          defaultPref("network.protocol-handler.external.matrix", true);
         '';
         # instruct Firefox to put the profile in a predictable directory (so we can do things like persist just it).
         # XXX: the directory *must* exist, even if empty; Firefox will not create the directory itself.
@@ -372,14 +405,14 @@ in
           if (cfg.persistData != null) then
             cfg.persistData
           else
-            "cryptClearOnBoot"
+            "ephemeral"
         ;
 
         persist.byPath."${cfg.browser.dotDir}/default".store =
           if (cfg.persistData != null) then
             cfg.persistData
           else
-            "cryptClearOnBoot"
+            "ephemeral"
         ;
       };
 

hosts/common/programs/flare-signal.nix

@@ -1,12 +1,16 @@
 # Flare is a 3rd-party GTK4 Signal app.
 # UI is effectively a clone of Fractal.
 #
-### compatibility:
+### compatibility (2023-10-30):
 # - 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.
+### compatibility (2024-08-07):
+# - linking flare to iOS signal "works", but neither side can exchange messages nor contacts
+#   in iOS i see "A message from Colin could not be delivered"
+# - registering as primary device does not work ("you are not authorized", or some such)
 #
 ### debugging:
 # - `RUST_LOG=flare=trace flare`
@@ -18,7 +22,7 @@
 #   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`
+# - this occurs on moby, desko, `flare-signal` and `flare-signal-nixified` (2023-12-14)
 # - the Websocket error seems to be unrelated, occurs during normal/good operation
 # - related issues: <https://github.com/whisperfish/presage/issues/152>
 #
@@ -28,7 +32,7 @@
 #       No current session
 #   ERROR presage::manager] Error opening envelope: SignalProtocolError(InvalidKyberPreKeyId), message will be skipped!
 #   ```
-# - but signal iOS will still read it.
+# - but signal iOS will still read it (2023-12-14).
 #
 #### HTTP 405 when linking flare to iOS signal:
 # [DEBUG libsignal_service_hyper::push_service] HTTP request PUT https://chat.signal.org/v1/devices/{uuid}.{timestamp?}:{b64-string}
@@ -43,7 +47,7 @@
 #             ),
 #         ),
 #     )
-# flare matrix suggests the signal endpoint has changed:
+# flare matrix suggests the signal endpoint has changed (2023-12-14):
 # - "/v1/device/link instead of confirming via /v1/devices/{I'd}"
 # - this endpoint is declared in libsignal-service-rs (used both by flare and presage)
 #   - libsignal-service/src/provisioning/manager.rs
@@ -73,5 +77,13 @@
       # and it persists some dconf settings (e.g. device name). reset with:
       # - `dconf reset -f /de/schmidhuberj/Flare/`.
     ];
+    #VVV flare complains if its data directory is a symlink, so put it in a subdirectory behind my persistence symlink.
+    env.FLARE_DATA_PATH = "$HOME/.local/share/flare/data";
+    # sandbox.method = "bwrap";
+    # sandbox.net = "clearnet";
+    # sandbox.whitelistWayland = true;
+    # sandbox.whitelistDbus = [
+    #   "user"  # so i can click on links, at least
+    # ];
   };
 }

hosts/common/programs/foliate.nix

@@ -0,0 +1,42 @@
+# foliate: <https://johnfactotum.github.io/foliate/>
+{ ... }:
+{
+  sane.programs.foliate = {
+    sandbox.method = "bwrap";
+    sandbox.net = "clearnet";  #< for dictionary, wikipedia, online book libraries
+    sandbox.whitelistDbus = [ "user" ];  #< when clicking on links
+    sandbox.whitelistDri = true;  # reduces startup time and subjective page flip time
+    sandbox.whitelistWayland = true;
+    sandbox.extraHomePaths = [
+      "Books/local"
+      "Books/servo"
+      "tmp"  #< for downloaded files
+    ];
+    sandbox.extraPaths = [
+      # foliate sandboxes itself with bwrap, which needs these.
+      #   but it actually only cares that /sys/{block,bus,class/block} *exist*: it doesn't care if there's anything in them.
+      #   so bind empty (sub)directories
+      # and it looks like i might need to keep IPC namespace if i want TTS.
+      "/sys/block/loop7"
+      "/sys/bus/container/devices"
+      "/sys/class/block/loop7"
+    ];
+    sandbox.autodetectCliPaths = "existing";
+
+    persist.byStore.plaintext = [
+      ".local/share/com.github.johnfactotum.Foliate"  #< books added, reading position
+      ".cache/com.github.johnfactotum.Foliate"  #< webkit cache
+    ];
+
+    buildCost = 2;  #< webkitgtk 6.0
+    # these associations were taken from its .desktop file
+    mime.associations."application/epub+zip" = "com.github.johnfactotum.Foliate.desktop";
+    mime.associations."application/x-mobipocket-ebook" = "com.github.johnfactotum.Foliate.desktop";
+    mime.associations."application/vnd.amazon.mobi8-ebook" = "com.github.johnfactotum.Foliate.desktop";
+    mime.associations."application/x-fictionbook+xml" = "com.github.johnfactotum.Foliate.desktop";
+    mime.associations."application/x-zip-compressed-fb2" = "com.github.johnfactotum.Foliate.desktop";
+    mime.associations."application/vnd.comicbook+zip" = "com.github.johnfactotum.Foliate.desktop";  # .cbz
+    mime.associations."x-scheme-handler/opds" = "com.github.johnfactotum.Foliate.desktop";
+    mime.priority = 120;  #< default is 100; fallback to more specialized cbz handlers, e.g., but keep specializations for epub
+  };
+}

hosts/common/programs/fractal.nix

@@ -65,6 +65,9 @@ in
 
     suggestedPrograms = [ "gnome-keyring" ];
 
+    # direct room links opened from other programs, to fractal.
+    mime.urlAssociations."^https?://matrix.to/#/.+$" = "org.gnome.Fractal.desktop";
+
     services.fractal = {
       description = "fractal Matrix client";
       partOf = lib.mkIf cfg.config.autostart [ "graphical-session" ];

hosts/common/programs/free.nix

@@ -1,7 +1,7 @@
 { pkgs, ... }:
 {
   sane.programs.free = {
-    packageUnwrapped = pkgs.linkIntoOwnPackage pkgs.procps "bin/free";
+    packageUnwrapped = pkgs.linkBinIntoOwnPackage pkgs.procps "free";
     sandbox.method = "bwrap";
     sandbox.isolatePids = false;
   };

hosts/common/programs/gdb.nix

@@ -0,0 +1,13 @@
+{ pkgs, ... }:
+{
+  sane.programs.gdb = {
+    sandbox.enable = false;  # gdb doesn't sandbox well. i don't know how you could.
+    # sandbox.method = "landlock";  # permission denied when trying to attach, even as root
+    sandbox.autodetectCliPaths = true;
+    fs.".config/gdb/gdbinit".symlink.text = ''
+      # enable commands like `py-bt`, `py-list`, etc.
+      # for usage, see: <https://wiki.python.org/moin/DebuggingWithGdb>
+      source ${pkgs.python3}/share/gdb/libpython.py
+    '';
+  };
+}

hosts/common/programs/gdbus.nix

@@ -1,7 +1,7 @@
 { pkgs, ... }:
 {
   sane.programs.gdbus = {
-    packageUnwrapped = pkgs.linkIntoOwnPackage pkgs.glib "bin/gdbus";
+    packageUnwrapped = pkgs.linkBinIntoOwnPackage pkgs.glib "gdbus";
 
     sandbox.method = "bwrap";
     sandbox.whitelistDbus = [ "user" ];  #< XXX: maybe future users will also want system access

hosts/common/programs/geary.nix

@@ -5,10 +5,10 @@
 #   <https://gitlab.gnome.org/GNOME/geary/-/issues/1212>
 { config, lib, ... }:
 let
-  cfg = config.sane.programs."gnome.geary";
+  cfg = config.sane.programs."geary";
 in
 {
-  sane.programs."gnome.geary" = {
+  sane.programs."geary" = {
     configOption = with lib; mkOption {
       default = {};
       type = types.submodule {
@@ -23,6 +23,13 @@ in
     sandbox.net = "clearnet";
     sandbox.whitelistDbus = [ "user" ];  # notifications
     sandbox.whitelistWayland = true;
+    sandbox.extraHomePaths = [
+      # it shouldn't need these, but portal integration seems incomplete?
+      "tmp"
+      "Pictures/from"
+      "Pictures/Photos"
+      "Pictures/Screenshots"
+    ];
     sandbox.extraPaths = [
       # geary sandboxes *itself* with bwrap, and dbus-proxy which, confusingly, causes it to *require* these paths.
       # TODO: these could maybe be mounted empty. or maybe there's an env-var to disable geary's dbus-proxy.

hosts/common/programs/geoclue-demo-agent.nix

@@ -0,0 +1,23 @@
+{ config, pkgs, ... }:
+{
+  sane.programs.geoclue-demo-agent = {
+    packageUnwrapped = pkgs.linkFarm "geoclue-demo-agent" [{
+      # bring the demo agent into a `bin/` directory so it can be invokable via PATH
+      name = "bin/geoclue-demo-agent";
+      path = "${config.sane.programs.geoclue2.packageUnwrapped}/libexec/geoclue-2.0/demos/agent";
+    }];
+
+    sandbox.method = "bwrap";
+    sandbox.whitelistDbus = [
+      "system"
+    ];
+
+    services.geoclue-agent = {
+      description = "geoclue 'demo' agent";
+      # XXX: i don't actually understand how this works: upstream dbus rules would appear to restrict
+      # the dbus owner to just root/geoclue, but we're neither and this still works (and breaks if i remove the agent service!)
+      command = "geoclue-demo-agent";
+      partOf = [ "graphical-session" ];
+    };
+  };
+}

hosts/common/programs/geoclue2.nix

@@ -0,0 +1,76 @@
+# geoclue location services daemon.
+#
+# SUPPORT:
+# - irc: #gnome-maps on irc.gimp.org
+# - Matrix: #gnome-maps:gnome.org  (unclear if bridged to IRC)
+# - forums: <https://discourse.gnome.org/c/platform>
+# - git: <https://gitlab.freedesktop.org/geoclue/geoclue/>
+# - D-Bus API docs: <https://www.freedesktop.org/software/geoclue/docs/>
+#
+# HOW TO TEST:
+# - just invoke `where-am-i`: it should output the current latitude/longitude.
+## more manual testing:
+# - build `geoclue2-with-demo-agent`
+# - run the service: `systemctl start geoclue` or "${geoclue2-with-demo-agent}/libexec/geoclue"
+# - run "${geoclue2-with-demo-agent}/libexec/geoclue-2.0/demos/agent"
+#   - keep this running in the background
+# - run "${geoclue2-with-demo-agent}/libexec/geoclue-2.0/demos/where-am-i"
+#
+# DATA FLOW:
+# - geoclue2 does http calls into local `ols`, which either hits the local disk or queries https://wigle.net.
+# - geoclue users like gnome-maps somehow depend on an "agent",
+#   a user service which launches the geoclue system service on-demand (via dbus activation).
+#
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.sane.programs.geoclue2;
+in
+{
+  sane.programs.geoclue2 = {
+    # packageUnwrapped = pkgs.rmDbusServices pkgs.geoclue2;
+    # packageUnwrapped = pkgs.geoclue2.override { withDemoAgent = true; };
+    packageUnwrapped = pkgs.geoclue2-with-demo-agent;
+    suggestedPrograms = [
+      "avahi"  #< to discover LAN gps devices
+      "geoclue-demo-agent"
+      # "gps-share"
+      "iio-sensor-proxy"
+      "ols"  #< WiFi SSID -> lat/long lookups
+      "satellite"  #< graphical view into GPS fix data
+      "where-am-i"  #< handy debugging/testing tool
+    ];
+
+    # XXX(2024/07/05): no way to plumb my sandboxed geoclue into `services.geoclue2`.
+    # then, the package doesn't get used directly anywhere. but other programs reference `packageUnwrapped`,
+    # so keep that part still.
+    sandbox.enable = false;
+    package = lib.mkForce null;
+
+    # experimental sandboxing (2024/07/05)
+    # sandbox.method = "bwrap";
+    # sandbox.whitelistDbus = [
+    #   "system"
+    # ];
+    # sandbox.net = "all";
+  };
+
+  # sane.programs.geoclue2.enableFor.system = lib.mkIf (builtins.any (en: en) (builtins.attrValues cfg.enableFor.user)) true;
+
+  services.geoclue2 = lib.mkIf cfg.enabled {
+    enable = true;
+    geoProviderUrl = "http://127.0.0.1:8088/v1/geolocate";  #< ols
+    # XXX(2024/06/25): when Geoclue uses ModemManager's GPS API, it wants to enable GPS
+    # tracking at the start, and disable it at the end. that causes tracking to be lost, regularly.
+    # this is not optional behavior: if Geoclue fails to control modem manager (because of a polkit policy, say),
+    # then it won't even try to read the data from modem manager.
+    # SOLUTION: tell Geoclue to get GPS from gps-share ("enableNmea", i.e. `network-nmea.enable`)
+    # and NOT from modem manager.
+    enableModemGPS = false;
+    enableNmea = true;
+  };
+  systemd.user.services = lib.mkIf cfg.enabled {
+    # nixos services.geoclue2 runs the agent as a user service by default, but i don't use systemd so that doesn't work.
+    # i manage the agent myself, in sane.programs.geoclue-demo-agent.
+    geoclue-agent.enable = false;
+  };
+}

hosts/common/programs/git.nix

@@ -40,6 +40,7 @@ in
       alias.amend   = "commit --amend --no-edit";
       alias.br      = "branch";
       alias.co      = "checkout";
+      alias.com     = "commit";
       alias.cp      = "cherry-pick";
       alias.d       = "difftool";
       alias.dif     = "diff";  # common typo

hosts/common/programs/gnome-feeds.nix

@@ -1,12 +1,12 @@
 # gnome feeds RSS viewer
-{ config, lib, sane-lib, ... }:
+{ config, lib, pkgs, sane-lib, ... }:
 
 let
   feeds = sane-lib.feeds;
   all-feeds = config.sane.feeds;
   wanted-feeds = feeds.filterByFormat ["text" "image"] all-feeds;
 in {
-  sane.programs.gnome-feeds.fs.".config/org.gabmus.gfeeds.json".symlink.text = builtins.toJSON {
+  sane.programs.gnome-feeds.fs.".config/org.gabmus.gfeeds.json".symlink.target = pkgs.writers.writeJSON "org.gabmus.gfeeds.json" {
     # feed format is a map from URL to a dict,
     #   with dict["tags"] a list of string tags.
     feeds = sane-lib.mapToAttrs (feed: {

hosts/common/programs/gnome-keyring/default.nix

@@ -1,7 +1,7 @@
 { lib, pkgs, ... }:
 {
   sane.programs.gnome-keyring = {
-    packageUnwrapped = pkgs.rmDbusServices pkgs.gnome.gnome-keyring;
+    packageUnwrapped = pkgs.rmDbusServices pkgs.gnome-keyring;
     sandbox.method = "bwrap";
     sandbox.whitelistDbus = [ "user" ];
     sandbox.extraRuntimePaths = [
@@ -10,7 +10,7 @@
     ];
     sandbox.capabilities = [
       # ipc_lock: used to `mlock` the secrets so they don't get swapped out.
-      # this is optional, and systemd likely doesn't propagate it anyway
+      # this is optional, and user namespacing (bwrap) likely doesn't propagate it anyway
       "ipc_lock"
     ];