Refactor.

flake.nix

@@ -56,6 +56,14 @@
 
       mkHost =
         system: profile: modules:
+        let
+          # Auto-import profile-specific module based on profile parameter
+          profileModule =
+            if profile == "server" then ./common/server-node.nix
+            else if profile == "workstation" then ./common/workstation-node.nix
+            else if profile == "desktop" then ./common/desktop-node.nix
+            else null;
+        in
         nixpkgs.lib.nixosSystem {
           system = system;
           modules = [
@@ -87,7 +95,7 @@
                 };
               };
             }
-          ] ++ modules;
+          ] ++ nixpkgs.lib.optional (profileModule != null) profileModule ++ modules;
           specialArgs = {
             inherit inputs self;
           };