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.
@maxgot CentOS Stream is RHEL built in the open in collaboration with the community. Decisions are still made by Red Hat, so it's not community led, but it's more community oriented than classic CentOS ever was.