{ stdenv, fetchgit, buildNimblePackage, gnunet, makeWrapper }:

let
  gnunet_nim = buildNimblePackage rec {
    name = "gnunet_nim-${version}";
    version = "0.1.0";
    src = fetchgit {
      url =  https://git.gnunet.org/gnunet-nim.git;
      rev = "38c51715cfe0b2c6cdc662cffcc8de2eec8d28a9";
      sha256 = "12lqcf2zlw8gvynzignrv30vlv8zi6imnzvlqfw5m57szcpv9q0h";
    };
    
    buildInputs = [ gnunet ];
  };
in
buildNimblePackage rec {
  name = "groupchat-${version}";
  version = "0.1.0";

  src = fetchgit {
    url =  https://git.gnunet.org/groupchat.git;
    rev = "49b5421635766faea9137de77a3e84a89527f867";
    sha256 = "0l3z5590bvmri3qhckibvywa89q6qg3kv8ly98232bvvxkinwzlq";
  };

  nimDeps = [ gnunet_nim ];

  buildInputs = [ makeWrapper ];

  postInstall = ''
    wrapProgram $out/bin/groupchat --prefix LD_LIBRARY_PATH : ${gnunet}/lib --prefix PATH : ${gnunet}/bin
  '';
}