refactor(flake): add user registry and multi-user host support
Separate user identity (data) from the reusable modules, and let a host declare any number of users instead of exactly one. - users/registry.nix: per-user identity (name, email, groups, authorized and signing keys) as the single source of identity; no user data is hardcoded in the modules. - mkHost takes a `users` set keyed by username; per-user identity is injected into each home config via the `identity` module arg (extraSpecialArgs is per-host, so it cannot carry per-user data). - modules/users.nix builds accounts from the registry; modules/ssh.nix no longer defines authorized keys (the registry owns them); home/git.nix and home/desktop.nix read `identity`; users/emmathorpe/work.nix drops its now-redundant git identity override. - Restructure the tree: users/, home/, modules/, hosts/, lib/ replace the former lyrathorpe/ and system/ layout. - Add standalone homeConfigurations (the portable subset: shell, git, editor, claude) and an exported homeModules output for use on machines not managed by this flake, or as an input to other flakes. Behaviour-preserving for existing hosts: lyrathorpe-mbp and emmathorpe-edaas evaluate to identical derivations; lyrathorpe-t400, lyrathorpe-macpro31 and lyrathorpe-rpi5 differ only by de-duplicating a repeated authorized_keys entry. Fixes the SSH authorized-key leak (one user's key was applied to every account), the hardcoded default git identity, and the hardcoded EDaaS linger setting.
This commit is contained in:
Emma Thorpe
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{
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config,
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lib,
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pkgs,
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...
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}:
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let
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cfg = config.features.swayDesktop;
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# Catppuccin Mocha (shared with the Sway desktop, see home/sway.nix).
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ctp = import ../lib/catppuccin-mocha.nix;
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in
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{
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# The features.swayDesktop.enable option is declared in
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# system/modules/features.nix (so headless hosts can read/set it without
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# importing this module). This module only provides its implementation.
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config = lib.mkIf cfg.enable {
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programs.sway = {
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enable = true;
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wrapperFeatures.gtk = true;
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extraSessionCommands = ''
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# QT
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export QT_QPA_PLATFORM="wayland;xcb"
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export QT_QPA_PLATFORMTHEME=qt5ct
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# SDL
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export SDL_VIDEODRIVER=wayland
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# Java
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export _JAVA_AWT_WM_NONREPARENTING=1
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# Misc
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export CLUTTER_BACKEND=wayland
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export WINIT_UNIX_BACKEND=wayland
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export MOZ_ENABLE_WAYLAND=1
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'';
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# Core Wayland utilities. The lock screen, idle daemon, status bar and
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# notification daemon are configured per-user in home/sway.nix.
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extraPackages = with pkgs; [
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brightnessctl
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foot
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grim
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slurp # region selection for screenshots
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swappy # screenshot annotation/save
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jq # used by the focused-window screenshot bind
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playerctl # MPRIS media keys
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sway-launcher-desktop
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pavucontrol
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];
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};
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fonts.packages = with pkgs; [
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noto-fonts
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noto-fonts-color-emoji
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font-awesome
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];
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# Wayland login screen (replaces console/getty login on every Sway host).
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# greetd runs ReGreet inside the cage kiosk compositor; the Sway session is
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# offered automatically because programs.sway registers itself via
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# services.displayManager.sessionPackages. Hosts that turn off
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# features.swayDesktop (e.g. EDaaS) keep plain TTY login.
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programs.regreet.enable = true;
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# Theme the greeter to match the Sway desktop (Catppuccin Mocha). ReGreet is
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# GTK; recolour via CSS (covering both libadwaita named colours and plain
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# GTK node selectors) and use the same Noto Sans as the bar/notifications.
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programs.regreet.font = {
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name = "Noto Sans";
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package = pkgs.noto-fonts;
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size = 16;
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};
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programs.regreet.extraCss = ''
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/* GTK4 Adwaita legacy names (what plain GTK4 actually references). */
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@define-color theme_bg_color #${ctp.base};
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@define-color theme_fg_color #${ctp.text};
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@define-color theme_base_color #${ctp.mantle};
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@define-color theme_text_color #${ctp.text};
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@define-color theme_selected_bg_color #${ctp.blue};
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@define-color theme_selected_fg_color #${ctp.base};
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@define-color insensitive_bg_color #${ctp.mantle};
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@define-color insensitive_fg_color #${ctp.overlay0};
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@define-color borders #${ctp.surface1};
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@define-color warning_color #${ctp.peach};
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@define-color error_color #${ctp.red};
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@define-color success_color #${ctp.green};
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/* libadwaita names (inert on plain GTK4, kept for forward-compat). */
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@define-color window_bg_color #${ctp.base};
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@define-color window_fg_color #${ctp.text};
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@define-color view_bg_color #${ctp.mantle};
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@define-color view_fg_color #${ctp.text};
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@define-color card_bg_color #${ctp.surface0};
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@define-color card_fg_color #${ctp.text};
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@define-color accent_bg_color #${ctp.blue};
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@define-color accent_fg_color #${ctp.base};
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@define-color accent_color #${ctp.blue};
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@define-color destructive_bg_color #${ctp.red};
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@define-color destructive_fg_color #${ctp.base};
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window {
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background-color: #${ctp.base};
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color: #${ctp.text};
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}
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label {
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color: #${ctp.text};
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}
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entry {
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background-color: #${ctp.surface0};
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color: #${ctp.text};
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border: 1px solid #${ctp.surface1};
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}
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entry:focus-within {
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border-color: #${ctp.blue};
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}
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button,
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combobox button {
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background-color: #${ctp.surface0};
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color: #${ctp.text};
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border: 1px solid #${ctp.surface1};
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}
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button:hover {
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background-color: #${ctp.surface1};
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}
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button:active,
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button:checked {
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background-color: #${ctp.blue};
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color: #${ctp.base};
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}
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'';
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# cage reads the XKB_* environment at startup, so force the greeter onto the
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# same Dvorak layout as the Sway session (home/sway.nix) -- otherwise the
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# password field would be QWERTY. Dvorak is the "us" layout's variant, NOT a
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# layout of its own: "dvorak" alone has no symbols/ file, so the keymap
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# fails to compile and the greeter ends up with no keyboard at all (the
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# greeter has no fallback, unlike a running Sway session). This overrides the
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# greetd command regreet sets with mkDefault.
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services.greetd.settings.default_session.command =
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let
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greeter = pkgs.writeShellScript "regreet-cage" ''
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export XKB_DEFAULT_LAYOUT=us
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export XKB_DEFAULT_VARIANT=dvorak
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# ReGreet is plain GTK4 (no libadwaita); force the dark Adwaita variant
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# so the extraCss accents sit on a dark base instead of light Adwaita.
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export GTK_THEME=Adwaita:dark
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exec ${pkgs.dbus}/bin/dbus-run-session ${lib.getExe pkgs.cage} -s -- ${lib.getExe config.programs.regreet.package}
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'';
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in
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"${greeter}";
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# Desktop portals: enables screen sharing (wlroots) and native file pickers
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# for Wayland apps such as Element and Firefox.
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xdg.portal = {
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enable = true;
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wlr.enable = true;
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extraPortals = [ pkgs.xdg-desktop-portal-gtk ];
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config.common.default = "*";
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};
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};
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}
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