anchor.diff:  {
  +  buildPackages,
     cacert,
     callPackage,
     closureInfo,
  
positive.code:     , imageDigest
      , sha256
      , os ? "linux"
      , arch ? "amd64"
  
        # This is used to set name to the pulled image
      , finalImageName ? imageName
  
negative.code:       baseJson = let
            pure = writeText "${baseName}-config.json" (builtins.toJSON {
              inherit created config;
              architecture = buildPackages.go.GOARCH;
              os = "linux";
            });
            impure = runCommand "${baseName}-config.json"
  