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Cake day: July 29th, 2025

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  • Wouldn’t it be easiest to implement Fediverse-wide SSO […] instead of figuring out some funky mapping and patform interactions?

    Yes, that would be easier, but it wouldn’t be desirable. We don’t want centralized social media (https://fedecan.ca/en/guide/get-started#old-social-media). I don’t want to log in on another instance, or even just open it and figure whatever unintuitive interface they’ve invented. The Fediverse has agreed on using ActivityPub as its common language, and individual softwares utilize and extend it as they see fit. This usually means that users of different instances with different software can talk to each other, albeit with some quirks like mastodon users having to tag op or Lemmy users being unable to PieFeds emoji reactions. Sometimes though the various social-medias work too differently for them to be compatible, like how on Lemmy you follow communities, whereas on mastodon you follow users.