anchor.diff:  
   let
     pname = "vector";
  -  version = "0.18.1";
  +  version = "0.19.0";
   in
   rustPlatform.buildRustPackage {
     inherit pname version;
  
positive.code: , coreutils
  , CoreServices
  , tzdata
    # kafka is optional but one of the most used features
  , enableKafka ? true
    # TODO investigate adding "api" "api-client" "vrl-cli" and various "vendor-*"
  
negative.code:     owner = "timberio";
      repo = pname;
      rev = "v${version}";
      sha256 = "sha256-A+Ok/BNEs0V00B8P6ghSHZ2pQ8tumfpkurplnvjpWZ8=";
    };
  
    cargoSha256 = "sha256-B9z+8TqAl0yFaou1LfNcFsDJjw7qGti6MakDPhz49tc=";
    nativeBuildInputs = [ pkg-config cmake ];
    buildInputs = [ oniguruma openssl protobuf rdkafka zstd ]
      ++ lib.optionals stdenv.isDarwin [ Security libiconv coreutils CoreServices ];
  
  