By adding `exec` to the entrypoint bash script for the application, we can trap an EXIT from the script and execute our custom `on_exit` method with checks if the application process is busy before terminating, waiting up to 10 seconds.
Written by:
@servingupaces
@tlwr
This commit’s parent introduces a Node-based way of managing front end assets.
Nothing else is needed in the app, specifically not Flask Assets. Flask itself
automatically routes requests for `domain.tld/static/*` to the files in
`app/static`.
This also removes all the Ruby stuff.
