custom_netboot.nix

{ pkgs ? import <nixpkgs>, system ? "x86_64-linux", ... }:                                         
                                                                          
let                                                                       
  module = { pkgs, config, lib, ... }: {                                                              
    services.xserver.enable = true;
  };                                                                      
  build = (import (pkgs.path + "/nixos/lib/eval-config.nix") {            
    # TODO: Make system as a parameter                                    
    inherit system;
    modules = [                                                           
      (pkgs.path + "/nixos/modules/installer/netboot/netboot-minimal.nix")
      module                                                              
    ];                                                                    
  }).config.system.build;                                                 
in                                                                        
                                                                          
pkgs.symlinkJoin {                                                        
  name = "netboot";                                                       
  paths = with build; [ netbootRamdisk  kernel netbootIpxeScript ];       
}