{
  lua5_3
, stdenv
, fennel
, makeWrapper
}:
let lua = lua5_3.withPackages (ps: [
      ps.dkjson
      ps.lpeg
      ps.http
      ps.luaposix
    ]);
    inherit makeWrapper;
    myfennel = fennel.override { inherit lua; };
in stdenv.mkDerivation {
  pname = "grafana-sms-alert";
  version = "0.1";
  src = ./.;
  makeFlags = [ "TARGET=${placeholder "out"}" ];
  postInstall = ''
     lua_path="`lua -e 'print(package.path)'`"
     lua_cpath="`lua -e 'print(package.cpath)'`"

     makeWrapper ${myfennel}/bin/fennel $out/bin/grafana-sms-alert \
      --add-flags "$out/lib/main.fnl"
  '';
  buildInputs = [lua myfennel];
  nativeBuildInputs = [ makeWrapper ];
}