{ 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 = "8c4e5fac40d2efb780d802bd800697e9d15b7ed9";
      sha256 = "1v417w22n8jdbqzq0qni4wxwa8n711x51sijm3wln805d6gsqwfy";
    };
    
    buildInputs = [ gnunet ];
  };
in
buildNimblePackage rec {
  name = "groupchat-${version}";
  version = "0.1.0";

  src = fetchgit {
    url =  https://git.gnunet.org/groupchat.git;
    rev = "229b1173eecd8e27e1a5cf96b5f6b08c3b76f971";
    sha256 = "007fmfjjhpbrl7nrh8yqxz1r1i1lc9mbrxsasb2jsvf765mfascj";
  };

  nimDeps = [ gnunet_nim ];

  buildInputs = [ makeWrapper ];

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