My instance is running mastodon 4.6 under docker, everything tied in a docker compose file. It was easy, but involved a few manual steps. I’m thinking about writing a blog post about it.
I’m running it in a single user mode and in a allow list federation mode, so only domains I manually add to the list are allowed to federate to my instance. This was intended to make it easier to admin it, so I don’t have to be taking reactive actions and also to prevent unwanted noise. As I learn how to manage I might relax the restrictions.