add laptop config

nixos/configuration-laptop.nix

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