trying to modularize

nix/configuration.nix

@@ -21,11 +21,13 @@ let
 in {
   imports = [ # Include the results of the hardware scan.
     ./hardware-configuration.nix
+    
     #"${home-manager}/nixos"
     #<home-manager/nixos>
     ./user.nix
+    ./machines/G560.nix
   ];
-  # Linux kernel Latest
+ # Linux kernel Latest
   boot.kernelPackages = pkgs.linuxPackages_latest;
   # Use the GRUB 2 boot loader.
   boot.loader.grub.enable = true;
@@ -34,7 +36,6 @@ in {
   # boot.loader.grub.efiInstallAsRemovable = true;
   # boot.loader.efi.efiSysMountPoint = "/boot/efi";
   # Define on which hard drive you want to install Grub.
-  boot.loader.grub.device = "/dev/sda"; # or "nodev" for efi only
   networking = {
     hostName = hostName;
     networkmanager.enable = true;

nix/machines/G560.nix

@@ -0,0 +1,5 @@
+{ config, pkgs, ... }:
+{
+ 
+ boot.loader.grub.device = "/dev/sda"; # or "nodev" for efi only
+}

nix/user.nix

@@ -4,6 +4,8 @@ let
   email = "klimi@sitischu.com";
 in
 {
+ 
+  
   imports = [<home-manager/nixos>];
   home-manager.useUserPackages = true;
   #