If you're running a public Mastodon server, it's really important that you have a plan for closing down gracefully *even if you have no intention of closing down*.
Having a plan in place means your members don't have to worry about your server suddenly disappearing, as they know they will get plenty of warning if it happens.
Here's a step-by-step guide to closing a Mastodon server gracefully (and much of this applies to any Fedi server):
🏡 https://fedi.tips/closing-your-mastodon-server-gracefully/