nixos-config/modules/core/network.nix

{ pkgs, ... }: 
{
  networking = {
    hostName = "nixos";
    networkmanager.enable = true;
    # wireless.enable = true;
    # wireless.userControlled.enable = true;
    nameservers = [ "1.1.1.1" ];
  };

  # environment.systemPackages = with pkgs; [
    # wpa_supplicant
  # ];
}