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;

flake.nix

@@ -88,15 +88,11 @@
             disko.nixosModules.disko
             sops-nix.nixosModules.sops
             impermanence.nixosModules.impermanence
-            omarchy-nix.nixosModules.default
             home-manager.nixosModules.home-manager
+            (
+              { lib, ... }:
+              lib.mkMerge [
                 {
-              omarchy = {
-                full_name = "Petru Paler";
-                email_address = "petru@paler.net";
-                theme = "tokyo-night";
-                monitors = [ "DP-1,preferred,auto,1.5" ];
-              };
                   home-manager = {
                     useGlobalPkgs = true;
                     useUserPackages = true;
@@ -105,8 +101,9 @@
                         (inputs.impermanence + "/home-manager.nix")
                         inputs.nix-index-database.homeModules.nix-index
                         inputs.nixvim.homeModules.nixvim
-                    omarchy-nix.homeManagerModules.default
                         ./home
+                      ] ++ lib.optionals (profile == "desktop") [
+                        omarchy-nix.homeManagerModules.default
                       ];
                     };
                     extraSpecialArgs = {
@@ -114,6 +111,18 @@
                     };
                   };
                 }
+                (lib.optionalAttrs (profile == "desktop") {
+                  omarchy = {
+                    full_name = "Petru Paler";
+                    email_address = "petru@paler.net";
+                    theme = "tokyo-night";
+                    monitors = [ "DP-1,preferred,auto,1.5" ];
+                  };
+                })
+              ]
+            )
+          ] ++ nixpkgs.lib.optionals (profile == "desktop") [
+            omarchy-nix.nixosModules.default
           ] ++ modules;
           specialArgs = {
             inherit inputs self;

hosts/sparky/default.nix

@@ -1,4 +1,4 @@
-{ pkgs, inputs, lib, ... }:
+{ pkgs, inputs, ... }:
 {
   imports = [
     ../../common/encrypted-btrfs-layout.nix
@@ -16,7 +16,5 @@
   };
 
   networking.hostName = "sparky";
-  # enabled by omarchy-nix, conflicts with useDHCP
-  networking.networkmanager.enable = lib.mkForce false;
   services.tailscaleAutoconnect.authkey = "tskey-auth-kBCKN7QNv411CNTRL-n5Td7Jw7h3TAjubEeLmy1THy33JvD9JnM";
 }