anchor.diff:      "--localstatedir=/var"
       "--disable-unittests"
       "--enable-systemd"
  +    "--enable-lzma"
  +    "--enable-zstd"
       "--with-tcmalloc"
     ];
   
  
positive.code: , libsodium
  , openssl
  , systemd_lib
  , zlib
  }:
  
  stdenv.mkDerivation rec {
    name = "tor-0.3.0.10";
  
    src = fetchurl {
      url = "https://www.torproject.org/dist/${name}.tar.gz";
      hashOutput = false;
      sha256 = "9a8e6e49a1688dae64dca10f84a414ec9a4f393fb2256ae28e0c2e3239185ab1";
    };
  
    nativeBuildInputs = [
  
negative.code:     libsodium
      openssl
      systemd_lib
      xz
      zlib
      zstd
    ];
  
    postPatch = ''
  