2026-08-16 -> 2026-09-13

modules/home-manager/my/programs/noctalia/config.nix

@@ -0,0 +1,135 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  cfg = config.my.programs.noctalia;
+  fmt = pkgs.formats.toml { };
+in {
+  config = lib.mkIf cfg.enable {
+    home.packages = [
+      cfg.package
+    ];
+
+    # Set some default based on Stylix.
+    # Mostly copied from the Stylix module for Noctalia.
+    #
+    # see: https://github.com/nix-community/stylix/blob/1e6ccadeda179d96728b4a9f20fc9d4dcf6b6059/modules/noctalia/hm.nix
+    my.programs.noctalia = lib.mkIf config.stylix.enable {
+      settings = {
+        theme = {
+          mode = config.stylix.polarity;
+          source = "custom";
+          custom_palette = "stylix";
+        };
+
+        wallpaper = {
+          enabled = true;
+
+          fill_mode = config.stylix.imageScalingMode;
+
+          # TODO: does not seem to apply. The stateful data in ~/.local/state
+          # gets created with the Noctalia default, even if I delete the state.
+          default = {
+            path = config.stylix.image;
+          };
+        };
+
+        shell = {
+          font_family = config.stylix.fonts.sansSerif.name;
+        };
+      };
+    };
+
+    my.persist.directories = [{
+      path = "~/.local/state/noctalia";
+      unique = true;
+    }];
+
+    systemd.user.services.noctalia = {
+      Unit = {
+        PartOf = [ config.wayland.systemd.target ];
+        After = [ config.wayland.systemd.target ];
+
+        X-Restart-Triggers = lib.optional (cfg.settings != {})
+          "${config.xdg.configFile."noctalia/config.toml".source}";
+      };
+
+      Service = {
+        ExecStart = "${lib.getExe cfg.package}";
+        Restart = "on-failure";
+      };
+
+      Install = {
+        WantedBy = [ config.wayland.systemd.target ];
+      };
+    };
+
+    xdg.configFile."noctalia/config.toml" =
+      lib.mkIf (cfg.settings != {}) {
+        source = let
+          toml = fmt.generate "config.toml" cfg.settings;
+        in pkgs.runCommand "config-validate" {} ''
+          ${lib.getExe cfg.package} config validate ${toml}
+          cp ${toml} $out
+        '';
+      };
+
+    # Snippet copied from Stylix's module.
+    #
+    # see: https://github.com/nix-community/stylix/blob/1e6ccadeda179d96728b4a9f20fc9d4dcf6b6059/modules/noctalia/hm.nix
+    xdg.configFile."noctalia/palettes/stylix.json" = lib.mkIf config.stylix.enable {
+      source = (pkgs.formats.json { }).generate "stylix-palette.json" {
+        dark = with config.lib.stylix.colors.withHashtag; {
+          mPrimary = base0D;
+          mOnPrimary = base00;
+          mSecondary = base0E;
+          mOnSecondary = base00;
+          mTertiary = base0C;
+          mOnTertiary = base00;
+          mError = base08;
+          mOnError = base00;
+          mSurface = base00;
+          mOnSurface = base05;
+          mHover = base0C;
+          mOnHover = base00;
+          mSurfaceVariant = base01;
+          mOnSurfaceVariant = base04;
+          mOutline = base03;
+          mShadow = base00;
+
+          terminal = {
+            foreground = base05;
+            background = base00;
+            cursor = base05;
+            cursorText = base00;
+            selectionFg = base05;
+            selectionBg = base02;
+            normal = {
+              black = base00;
+              red = base08;
+              green = base0B;
+              yellow = base0A;
+              blue = base0D;
+              magenta = base0E;
+              cyan = base0C;
+              white = base05;
+            };
+            bright = {
+              black = base03;
+              red = base08;
+              green = base0B;
+              yellow = base0A;
+              blue = base0D;
+              magenta = base0E;
+              cyan = base0C;
+              white = base07;
+            };
+          };
+        };
+      };
+    };
+  };
+}

modules/home-manager/my/programs/noctalia/options.nix

@@ -0,0 +1,26 @@
+{
+  lib,
+  pkgs,
+  ...
+}:
+let
+  fmt = pkgs.formats.toml { };
+in {
+  options = {
+    my.programs.noctalia = {
+      enable = lib.mkEnableOption "Noctalia";
+
+      package = lib.mkOption {
+        default = pkgs.noctalia;
+
+        type = with lib.types; package;
+      };
+
+      settings = lib.mkOption {
+        default = {};
+
+        type = fmt.type;
+      };
+    };
+  };
+}