{ lib, fetchurl, buildDunePackage
, digestif, sexplib0, mirage-crypto, mirage-crypto-pk, astring, base64
}:

buildDunePackage rec {
  pname = "otr";
  version = "1.0.0";

  minimalOCamlVersion = "4.13";

  src = fetchurl {
    url = "https://github.com/hannesm/ocaml-otr/releases/download/v${version}/otr-${version}.tbz";
    hash = "sha256-/CcVqLbdylB+LqpKNETkpvQ8SEAIcEFCO1MZqvdmJWU=";
  };

  propagatedBuildInputs = [ digestif sexplib0 mirage-crypto mirage-crypto-pk
                            astring base64 ];

  doCheck = true;

  meta = with lib; {
    homepage = "https://github.com/hannesm/ocaml-otr";
    description = "Off-the-record messaging protocol, purely in OCaml";
    license = licenses.bsd2;
    maintainers = with maintainers; [ sternenseemann ];
  };
}