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.
@dos@lukeshu@devrtz Sorry, that was poorly phrased - I recall initial difficulties when I had gotten my Librem 5 and did not rely on 'known good chargers and cables'. Overall, the situation has improved a lot since then.