Add KDE

modules/system/nixos/shells/gnome.nix

@@ -36,6 +36,7 @@ in
         ++ [
           loupe
           papers
+          refine
           simple-scan
         ];
     };

modules/system/nixos/shells/kde.nix

@@ -0,0 +1,38 @@
+{
+  lib,
+  pkgs,
+  config,
+  ...
+}:
+with lib;
+let
+  cfg = config.os.shells.kde;
+in
+{
+  options.os.shells.kde = {
+    enable = mkEnableOption "System gnome shell service";
+  };
+  config = mkIf cfg.enable {
+
+    services.displayManager.plasma-login-manager.enable = true;
+    services.desktopManager.plasma6.enable = true;
+
+    environment = {
+
+      plasma6.excludePackages = with pkgs; [
+        aurorae
+        plasma-browser-integration
+        kwin-x11
+        (lib.getBin qttools) # Expose qdbus in PATH
+        elisa
+        gwenview
+        ktexteditor # provides elevated actions for kate
+        khelpcenter
+        baloo-widgets # baloo information in Dolphin
+        spectacle
+        krdp
+      ];
+    };
+
+  };
+}