docs: def naccess_available():
      """True if naccess is available on the path."""
      available = False
      try:
          subprocess.check_output(['naccess'], stderr=subprocess.DEVNULL)
      except subprocess.CalledProcessError:
          available = True
      except FileNotFoundError:
          print("naccess has not been found on your path. If you have already "
                "installed naccess but are unsure how to add it to your path, "
                "check out this: https://stackoverflow.com/a/14638025")
      return available