[piaste]

A public facing web server, I doubt it. But for a private one it can make a lot of sense - you are probably only using N services at a time, where N is the number of users.

As for what can be so resource intensive that it's worth to wait for startup time instead of running everything at the same time - a bunch of specialized LLMs is the obvious example. Or maybe you're a hobbyist cramming a hundred services into a tiny computer.