* instead, we override the app's config in a way that evaluates the
  SITE_{API,UI}_URL values and casts them to strings
* because we have configured these values as LocalProxy objects with
  some logic for dynamically calculating the URLs based on the HTTP
  request context instead of plain strings, we sometimes ran into typing
  issues
* the above mentioned logic helps us with having multiple valid domain
  names (and generating valid links based on which is being visited)