diff --git a/modules/configurations/nixos.nix b/modules/configurations/nixos.nix
index b3f0743..226998c 100644
--- a/modules/configurations/nixos.nix
+++ b/modules/configurations/nixos.nix
@@ -19,7 +19,8 @@ let
       name = hostName;
       value = lib.nixosSystem {
         specialArgs = { inherit inputs hostName; };
-        modules = [ value ];
+        #TODO: add profiles system
+        modules = [ value.extraCfg or { } ];
       };
     };
 in
diff --git a/modules/hostSpec.nix b/modules/hostSpec.nix
index 3059518..d86ae82 100644
--- a/modules/hostSpec.nix
+++ b/modules/hostSpec.nix
@@ -1,15 +1,17 @@
 { config, ... }:
 {
   flake.hostSpec.hosts = {
-    "nixos/test".imports = with config.flake.modules.nixos; [ networking ];
-    "nixos/test".config = {
-      boot.loader.systemd-boot.enable = true;
-      fileSystems."/" = {
-        device = "/dev/sda1";
-        fsType = "ext4";
+    "nixos/test".extraCfg = {
+      imports = with config.flake.modules.nixos; [ networking ];
+      config = {
+        boot.loader.systemd-boot.enable = true;
+        fileSystems."/" = {
+          device = "/dev/sda1";
+          fsType = "ext4";
+        };
+        nixpkgs.hostPlatform = "x86_64-linux";
+        system.stateVersion = "25.05";
       };
-      nixpkgs.hostPlatform = "x86_64-linux";
-      system.stateVersion = "25.05";
     };
   };
 }