anchor.diff:      sha256 = "18xdlh1aibf5xil2ndbph14h7sqzb8b63hky6ic7bw63a4j3bbvc";
       buildInputs = [ testify ];
       propagatedBuildInputs = [ ansicolor ];
  +  };
  +
  +  gx = buildFromGitHub {
  +    rev = "bba4dac881b19a4903fe9bd8d7ead4e7fd2270aa";
  +    date = "2016-02-10";
  +    owner = "whyrusleeping";
  +    repo = "gx";
  +    sha256 = "1v0q7b2jip3xgwinly6lmcqwq351ynlk8lr0876m2ap97d5yk790";
  +    buildInputs = [
  +      go-multiaddr
  +      go-multihash
  +      go-multiaddr-net
  +      semver
  +      go-git-ignore
  +      stump
  +      codegangsta-cli
  +      go-ipfs-api
  +    ];
  +    excludedPackages = [
  +      "tests"
  +    ];
     };
   
     hcl = buildFromGitHub {
  
positive.code:     sha256 = "1kmlwfnnfd4h46bb9pz2gw1hxqm1pzkwvidfmnc0zkrilaywk6fx";
    };
  
    go-bencode = buildGoPackage rec {
      version = "1.1.1";
      name = "go-bencode-${version}";
  
negative.code:   };
  
    semver = buildFromGitHub {
      rev = "v3.1.0";
      owner = "blang";
      repo = "semver";
      sha256 = "1s80qlij6j6wrh0fhm0l11hbf3qjra67nca5bl7izyfjj4621fcd";
    };
  
    serf = buildFromGitHub {
  