{ mkDerivation, aeson, base, exceptions, fetchurl, hspec
, http-api-data, path-pieces, persistent, QuickCheck, text
}:
mkDerivation {
  pname = "slug";
  version = "0.1.7";
  src = fetchurl {
    url = "http://example.org/";
    sha256 = "abc";
  };
  libraryHaskellDepends = [
    aeson base exceptions http-api-data path-pieces persistent
    QuickCheck text
  ];
  testHaskellDepends = [
    base exceptions hspec http-api-data path-pieces QuickCheck text
  ];
  homepage = "https://github.com/mrkkrp/slug";
  description = "Type-safe slugs for Yesod ecosystem";
  license = stdenv.lib.licenses.bsd3;
}