fosstodon.org is one of the many independent Mastodon servers you can use to participate in the fediverse.
Fosstodon is an invite only Mastodon instance that is open to those who are interested in technology; particularly free & open source software.
If you wish to join, contact us for an invite.
I'd like to use only #xmpp but my family and friends use meta services, work parners use slack and telegram, most of the open source comunities uses #matrix, and I need to use all of those services