anchor.diff:  
   buildGoModule rec {
     pname = "buf";
  -  version = "0.54.1";
  +  version = "1.0.0-rc7";
   
     src = fetchFromGitHub {
       owner = "bufbuild";
       repo = pname;
       rev = "v${version}";
  -    sha256 = "sha256-v8n1K2YrN8o4IPA2u6Sg5zsOM08nppg29vlU6ycMj9U=";
  +    sha256 = "sha256-ufXz9+WI4NARkQg36mPhGncL7G9fWjDX9Ka/EJdsTvk=";
     };
  -  vendorSha256 = "sha256-WLQ8Bw/UgRVTFEKpDbv6VZkMHQm2tgxekH3J7Sd5vC8=";
  +  vendorSha256 = "sha256-wycrRCL7Mjx0QR5Y64WylpmDtKNh010mNxWAg6ekrds=";
   
     patches = [
       # Skip a test that requires networking to be available to work.
  
positive.code:     changelog = "https://github.com/bufbuild/buf/releases/tag/v${version}";
      description = "Create consistent Protobuf APIs that preserve compatibility and comply with design best-practices";
      license = licenses.asl20;
      maintainers = with maintainers; [ raboof jk ];
    };
  }
  
negative.code:     for FILE in \
        "buf" \
        "protoc-gen-buf-breaking" \
        "protoc-gen-buf-lint"; do
        cp "$GOPATH/bin/$FILE" "$out/bin/"
      done
  
  