anchor.diff:        system.nixos.revision = nixpkgs.rev or nixpkgs.shortRev;
       };
   
  +  makeModules = module: rest: [ configuration versionModule module rest ];
   
     makeIso =
       { module, type, system, ... }:
  
positive.code: 
      hydraJob ((import lib/eval-config.nix {
        inherit system;
        modules = [ configuration module versionModule ];
      }).config.system.build.sdImage);
  
  
  
negative.code:     let
        configEvaled = import lib/eval-config.nix {
          inherit system;
          modules = makeModules module {};
        };
        build = configEvaled.config.system.build;
        kernelTarget = configEvaled.pkgs.stdenv.hostPlatform.platform.kernelTarget;
  