{ mkDerivation, base, base-compat, directory, exceptions, fetchurl
, hspec, hspec-megaparsec, megaparsec, optparse-applicative
, process, text, transformers, yaml
}:
mkDerivation {
  pname = "dotenv";
  version = "0.5.2.1";
  src = fetchurl {
    url = "http://example.org/";
    sha256 = "abc";
  };
  isLibrary = true;
  isExecutable = true;
  enableSeparateDataOutput = true;
  libraryHaskellDepends = [
    base base-compat directory exceptions megaparsec process text
    transformers yaml
  ];
  executableHaskellDepends = [
    base base-compat megaparsec optparse-applicative process text
    transformers yaml
  ];
  testHaskellDepends = [
    base base-compat directory exceptions hspec hspec-megaparsec
    megaparsec process text transformers yaml
  ];
  homepage = "https://github.com/stackbuilders/dotenv-hs";
  description = "Loads environment variables from dotenv files";
  license = stdenv.lib.licenses.mit;
}