Only install omarchy on desktop machines.

common/desktop-node.nix

@@ -1,4 +1,4 @@
-{ pkgs, ... }:
+{ pkgs, lib, ... }:
 {
   # Desktop profile: Graphical desktop with Hyprland
   # Extends workstation-node with desktop environment
@@ -6,6 +6,9 @@
     ./workstation-node.nix
   ];
 
+  # omarchy-nix enables NetworkManager, but we use useDHCP globally
+  networking.networkmanager.enable = lib.mkForce false;
+
   # Enable Hyprland (Wayland compositor)
   programs.hyprland = {
     enable = true;

common/global/network.nix

@@ -1,3 +1,4 @@
+{ lib, ... }:
 {
   networking = {
     useDHCP = true;