anchor.diff:  
         config = (import lib/eval-config.nix {
           inherit system;
  -        modules = [ configuration module versionModule ];
  +        modules = makeModules module {};
         }).config;
   
         tarball = config.system.build.tarball;
  
positive.code:     let
        configEvaled = import lib/eval-config.nix {
          inherit system;
          modules = [ module versionModule ];
        };
        build = configEvaled.config.system.build;
        kernelTarget = configEvaled.pkgs.stdenv.hostPlatform.platform.kernelTarget;
  
negative.code: 
    buildFromConfig = module: sel: forAllSystems (system: hydraJob (sel (import ./lib/eval-config.nix {
      inherit system;
      modules = makeModules module
        ({ ... }:
        { fileSystems."/".device  = mkDefault "/dev/sda1";
          boot.loader.grub.device = mkDefault "/dev/sda";
  