{ mkDerivation, base, fetchurl, nix, process }:
mkDerivation {
  pname = "nix-paths";
  version = "1.0.1";
  src = fetchurl {
    url = "http://example.org/";
    sha256 = "abc";
  };
  libraryHaskellDepends = [ base process ];
  libraryToolDepends = [ nix ];
  homepage = "https://github.com/peti/nix-paths";
  description = "Knowledge of Nix's installation directories";
  license = stdenv.lib.licenses.bsd3;
}