Years ago I used it to setup a simple php website because it gave me the ability to easily limit the website to people from a G Suite (aka Google Apps) domain. I could use a "app.yaml" file like the following,

- url: /admin
  script: admin.php
  secure: always
  login: admin
- url: /staff
  script: staff.php
  secure: always
  login: required
- url: .*
  script: index.php
  secure: always

Insanely easy to setup, "login: admin" meant only G Suite admins could log in. "login: required" meant only people on the designated domain could login. Everything else went to default pages.

Duty calls and I head back over there to slap together another quick website and figure I might as well use PHP 7. I start going through the setup, and the process went from being this extremely straightforward process to something so far beyond complicated I'm ready to just walk away. What happened, why did they butcher what seemed to be a simple system? Why are there hundreds of steps and tutorials that are all over the fucking place in order to do things that used to be incredibly simple?

Anyone here actually using this, and if so, is there a quick and simple workaround to accomplish this or do I now need composer, JSON files and thousands of lines of code to accomplish the exact same thing that used to take minutes?