Add gdm gnome sddm kde

modules/programs/kde.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  options,
+  config,
+  ...
+}:
+{
+  options.mods.kde = {
+    enable = lib.mkOption {
+      default = false;
+      example = true;
+      type = lib.types.bool;
+      description = "Enables the KDE desktop environment";
+    };
+  };
+
+  config = lib.mkIf config.mods.kde.enable (
+    lib.optionalAttrs (options ? services.desktopManager.plasma6) {
+      # apparently kde integration is bad -> kdeconfig is too much even for nix, can't blame them :)
+      services.desktopManager.plasma6.enable = true;
+    }
+  );
+
+}