It's surprising how easy it is to bring a MediaWiki site back to life from backups after many years. Everything seems to just work, and the upgrade was painless!
So far. (I'm still trying to wrangle rclone to do clever copy-between-remotes and other things.)
This is a Mastodon instance primarily for Australasian Galleries, Libraries, Archives, Museums and Records people, and anyone else who wants to hang out with them. We use the Hometown fork which enables local-only posts.