anchor.diff:  
   let
     pname = "vector";
  -  version = "0.18.1";
  +  version = "0.19.0";
   in
   rustPlatform.buildRustPackage {
     inherit pname version;
  
positive.code:     owner = "timberio";
      repo = pname;
      rev = "v${version}";
      sha256 = "sha256-OD7lYoTlQNdrWT1f+BAp6zI0N+9W2LOHNNgpvAMXKDM=";
    };
  
    cargoSha256 = "sha256-BqnXXTNE1TmrF7pSOCQpnHHve0lCb9W6MbJXk2QHAOs=";
    nativeBuildInputs = [ pkg-config ];
    buildInputs = [ oniguruma openssl protobuf rdkafka zstd ]
      ++ lib.optionals stdenv.isDarwin [ Security libiconv coreutils CoreServices ];
  
  
negative.code: , coreutils
  , CoreServices
  , tzdata
  , cmake
    # kafka is optional but one of the most used features
  , enableKafka ? true
    # TODO investigate adding "api" "api-client" "vrl-cli" and various "vendor-*"
  