Recently talked to a friend working at a more mature company that used AWS API Gateway to handle all of that business logic. Obviously AWS's setup time isn't known for being conducive to fast-moving teams, but why aren't things like Zuplo (https://zuplo.com/docs/articles/what-is-zuplo) or Unkey (https://www.unkey.com/docs/introduction) more commonly used?
(i.e. why do engineers choose to roll their own policies instead of using what seem like very robust solutions—it seems like a healthy separation of concerns...)
