The Fediverse isn't just Mastodon, and there are other microblogging platforms. Epicyon is designed to be a lightweight server: https://libreserver.org/epicyon/

The Fediverse isn't just Mastodon, and there are other microblogging platforms. Epicyon is designed to be a lightweight server: https://libreserver.org/epicyon/ https://libreserver.org/epicyon/ "Epicyon is a fediverse server suitable for self-hosting a small number of accounts on low power systems." In a testament to how the Fediverse really does Just Work, I stumbled across Bob, the developer, quite by accident from my Mastodon account and now follow him. His posts, from his Epicyon instance, appear just like anyone else on my home feed and we interact as if he lived on my home server. There are at least half a dozen people I interact with who aren't on Mastodon, either.