{ fetchurl }:
let
  version = "144.0";
in
fetchurl {
  url = "https://raw.githubusercontent.com/arkenfox/user.js/${version}/user.js";
  sha256 = "sha256-5KszxpFImRdc9wNeDlei1/CKyIfY+VfxGZ5+Sbvn4z4=";
}