If I understand correctly, Sweeper clears up sessions that haven't received a request in a certain amount of time. Essentially the use case would be to leave the session running until I ask Sweeper to clear it via an API request.

Just to illustrate where I'm coming from, what I have so far mimics the pm2 cli as an API with built-in reverse-proxy, with create (similar to init), reload, restart, start, stop and delete.