Try Pleroma. It will easily run on a raspberry Pi and is growing very fast. It's also a lot easier and simpler to install and deploy than Mastodon; it has far f

Try Pleroma. It will easily run on a raspberry Pi and is growing very fast. It's also a lot easier and simpler to install and deploy than Mastodon; it has far fewer dependencies. Also more features, like chat, have been around for years. Mastodon is falling behind even there. I really recommend it. It was a much nicer experience for me.