add laptop config

nixos/configuration-desktop.nix

@@ -0,0 +1,19 @@
+{ config, lib, pkgs, ... }:
+
+{
+  imports = [
+    # Include the results of the hardware scan.
+    ./hardware-configuration-desktop.nix
+  ];
+
+  networking.hostName = "nixinator"; # Define your hostname.
+
+  services.xserver = {
+    # Configure keymap in X11
+    layout = "us";
+    xkbVariant = "altgr-intl";
+
+    # Proprietary graphics drivers
+    videoDrivers = [ "nvidia" ];
+  };
+}