feat(home-manager): add support for swaync

modules/home-manager/swaync.nix

@@ -0,0 +1,66 @@
+{
+  config,
+  options,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  cfg = config.services.swaync.catppuccin;
+  # `services.swaync.catppuccin` is not readable when using mkSinkUndeclaredOptions
+  # TODO: remove when 24.05 is stable
+  enable = (options.services.swaync ? catppuccin) && cfg.enable && config.services.swaync.enable;
+  # TODO wait on https://github.com/andir/npins/pull/46
+  sources = {
+    "swaync-latte" = builtins.fetchurl {
+      url = "https://github.com/catppuccin/swaync/releases/download/v0.2.2/latte.css";
+      sha256 = "sha256-701jarDOTKD8BYYiLEdQm4HIcVYFKRSaoJ/IeSytMrA=";
+    };
+    "swaync-frappe" = builtins.fetchurl {
+      url = "https://github.com/catppuccin/swaync/releases/download/v0.2.2/frappe.css";
+      sha256 = "sha256-/Y0FqRbun2dFnDHTyUvKYTesjH8f2N1n0ITzGR3PlWU=";
+    };
+    "swaync-macchiato" = builtins.fetchurl {
+      url = "https://github.com/catppuccin/swaync/releases/download/v0.2.2/macchiato.css";
+      sha256 = "sha256-EdpYKeeIJrnbjR98QQ4YXsNBsdrm6E2Nr7cmUBpTv6Y=";
+    };
+    "swaync-mocha" = builtins.fetchurl {
+      url = "https://github.com/catppuccin/swaync/releases/download/v0.2.2/mocha.css";
+      sha256 = "sha256-YFboTWj/hiJhmnMbGLtfcxKxvIpJxUCSVl2DgfpglfE=";
+    };
+  };
+  themeRaw = sources."swaync-${cfg.flavour}";
+  theme = pkgs.substitute {
+    src = themeRaw;
+
+    substitutions = [
+      "--replace-warn"
+      "Ubuntu Nerd Font"
+      cfg.font
+    ];
+  };
+
+  # `services.swaync` was added in 24.05 and not backported
+  # TODO: remove when 24.05 is stable
+  minVersion = "24.05";
+in
+{
+  options.services.swaync = lib.ctp.mkVersionedOpts minVersion {
+    catppuccin = lib.ctp.mkCatppuccinOpt "swaync" // {
+      font = lib.mkOption {
+        type = lib.types.str;
+        default = "Ubuntu Nerd Font";
+        description = "Font to use for the notification center";
+      };
+    };
+  };
+
+  config = lib.mkIf enable {
+    services.swaync.style = theme;
+
+    # Install the default font if it is selected
+    home.packages = lib.mkIf (cfg.font == "Ubuntu Nerd Font") [
+      (pkgs.nerdfonts.override { fonts = [ "Ubuntu" ]; })
+    ];
+  };
+}

test.nix

@@ -133,6 +133,7 @@ testers.runNixOSTest {
               polybar top &
             '';
           };
+          swaync = enable;
         };
 
         wayland.windowManager.sway = enable;