anchor.diff:    meta = with stdenv.lib; {
       description = "A tool which facilitates building OCI images";
       homepage = "https://github.com/containers/buildah";
  +    changelog = "https://github.com/containers/buildah/releases/tag/v${version}";
       license = licenses.asl20;
       maintainers = with maintainers; [ Profpatsch vdemeester saschagrunert ];
     };
  
positive.code:     pushd go/src/${goPackagePath}
      make GIT_COMMIT="unknown"
      install -Dm755 buildah $bin/bin/buildah
    '';
  
    postBuild = ''
  
negative.code: 
  buildGoPackage rec {
    pname = "buildah";
    version = "1.13.1";
  
    src = fetchFromGitHub {
      owner  = "containers";
      repo   = "buildah";
      rev    = "v${version}";
      sha256 = "0swhpdr970ik6fhvmj45r84lsp1n6rxm0bgv9i1lvrxy1mdv7r9x";
    };
  
    outputs = [ "bin" "man" "out" ];
  
    goPackagePath = "github.com/containers/buildah";
    excludedPackages = [ "tests" ];
  
    nativeBuildInputs = [ pkgconfig ];
    buildInputs = [ gpgme libgpgerror lvm2 btrfs-progs ostree libselinux libseccomp ];
  