netboot = let
    cfg = { ... }:
    {
      imports = [ <nixpkgs/nixos/modules/installer/netboot/netboot-minimal.nix> ];
      environment.systemPackages = [ installer ];
      networking.firewall.allowedTCPPorts = [ 8080 ];
    };
    build = (import <nixpkgs/nixos> { configuration = cfg; }).config.system.build;
  in symlinkJoin {
    name="netboot";
    paths = [ build.netbootRamdisk build.kernel build.netbootIpxeScript ];
  };