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Wildebeest - A cloudflare based Fediverse server
(github.com)
A community dedicated to fediverse news and discussion.
Fediverse is a portmanteau of "federation" and "universe".
Getting started on Fediverse;
sure you can point your domain elsewhere, but i don't see anything about the ability to export your data in a way that lets you actually migrate to something else (though i think that is arguably required by GDPR...)