Desktop environment refactor

modules/desktop/greeter/greetd.nix

@@ -0,0 +1,50 @@
+{ inputs, config, lib, pkgs, ... }:
+
+let
+  cfg = config.samfelag.modules.desktop.greeter.greetd;
+in {
+
+  options.samfelag.modules.desktop.greeter.greetd = with lib; {
+    enable = mkEnableOption "Greetd based greeter";
+    wm_cmd = lib.my.mkOpt' types.str "" "Window manager command";
+  };
+
+  config = lib.mkIf cfg.enable {
+
+    environment.systemPackages = with pkgs; [
+      greetd.gtkgreet
+      cage
+    ];
+
+    services.greetd = {
+      enable = true;
+      settings = {
+        default_session = {
+          command = "${pkgs.cage}/bin/cage -d -s ${pkgs.greetd.gtkgreet}/bin/gtkgreet -- -c ${cfg.wm_cmd} -s /etc/greetd/greetd.css";
+          user = config.user.name;
+        };
+      };
+    };
+
+    environment.etc."greetd/environments".text = ''
+      ${cfg.wm_cmd}
+    '';
+
+    environment.etc."greetd/greetd.css".text = ''
+      window {
+          background-image: url("file://${config.samfelag.modules.desktop.wallpaper}");
+          background-size: cover;
+          background-position: center;
+          font-family: Iosevka;
+          color: #${config.colorScheme.palette.base00};
+      }
+
+      box#body {
+          background-color: #${config.colorScheme.palette.base06};
+          opacity: 0.75;
+          border-radius: 10px;
+          padding: 50px;
+      }
+    '';
+  };
+}