Mastodon
A federated social network in the same vein as Twitter.
Mastodon is a decentralized, federated social network, closest in shape to Twitter. It grew enormously after Elon Musk bought Twitter, and one happy consequence is that there are now excellent mobile and desktop clients for it on most platforms.
I don’t run an instance. My Fediverse server is GoToSocial, which speaks the same protocol with a fraction of the footprint, and that suits a server I’m the only user of.
What Running It Takes
Worth knowing before you start, because it’s the heaviest of the Fediverse servers to host. It needs Ruby, along with Node for building the front end, a handful of system packages, and PostgreSQL. There’s no Debian package, so you’re building from source and minding versions yourself.
Their documentation is good and stays current, which is where the actual commands should come from.