Feature Request: Shutdown buck2 server after some idle time

I've been experimenting with buck2 on a test project, and spent a few days without touching it at all. Then I looked at my activity monitor app (macOS) looking for some other thing, and was very surprised (especially coming from Bazel) to see that I had a few buck2 processes still running (not sure why a few of them, because I was only testing it with a single project, I don't know if Buck2 spins up multiple processes in a normal scenario, or maybe there were some zombie leftovers).

Bazel's server process shuts itself down after some idle time, and I'd like to suggest doing the same for Buck2.