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Mastodon rolls out built-in bylines for journalists in the fediverse
(www.theverge.com)
A community dedicated to fediverse news and discussion.
Fediverse is a portmanteau of "federation" and "universe".
Getting started on Fediverse;
There's also no guarantee that the rel=me points to a fediverse instance, mastodon already has logic to deal with thus without reinventing the wheel with what's effectively a proprietary solution.