[photonios]

Don't imagine anything fancy here. This is roughly 100 lines of Python code that scales based on some tresholds. It took a day or two to develop, test and deploy.

However, we recently found a managed service to do this for us so we'll be switching to that as soon as we can.

If we'd have to spend more engineering resources on our infrastructure than the occasional simple tool, then we'd consider switching away from Heroku. The benefits still outweigh the potential engineering effort of not running on Heroku.