migrates config further

modules/desktop/default.nix

@@ -0,0 +1,17 @@
+{ ... }:
+{
+  flake.modules.nixos.desktop =
+    { pkgs, ... }:
+    {
+      services.displayManager.cosmic-greeter.enable = true;
+      services.desktopManager.cosmic.enable = true;
+      services.system76-scheduler.enable = true;
+
+      environment.cosmic.excludePackages = with pkgs; [
+        cosmic-term
+      ];
+    };
+
+  # TODO: Persist ~/.config/cosmic after setup
+  # and symlink it with home manager
+}