split into multiple files, added dwm

hosts/common/gui.nix

@@ -0,0 +1,36 @@
+{
+  inputs,
+  outputs,
+  lib,
+  config,
+  pkgs,
+  ...
+}: {
+  # X Server settings
+  services.xserver = {
+    enable = true;
+    layout = "pl";
+    xkbVariant = "";
+
+    displayManager = {
+      lightdm = {
+        enable = false;
+      };
+      startx = {
+        enable = true;
+      };
+    };
+    
+    windowManager = {
+      dwm = {
+        enable = true;
+      };
+    };
+
+    desktopManager = {
+      xfce = {
+        enable = false;
+      };
+    };
+  };
+}