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1. Embed this notice
   Matt Cengia (mattcen@aus.social)'s status on Sunday, 14-Jun-2026 21:34:08 JST Matt Cengia

   I remember reading previously that one shouldn't switch an #ActivityPub server between implementations (e.g. from #Mastodon to #GoToSocial), but never understood why. I know a fair bit about AP but haven't read the full spec.
   Can somebody please tl;dr this for me? Is it primarily due to the private keys used to sign activities, or something more complex?

   • Embed this notice
     silverpill (silverpill@mitra.social)'s status on Sunday, 14-Jun-2026 21:34:08 JST silverpill

     in reply to

     @mattcen This is primarily due to implementation quirk of GoToSocial:

     https://codeberg.org/superseriousbusiness/gotosocial/issues/3197

     AFAIK, Mastodon had a similar limitation in the past, and also was overly strict with actor ID -> webfinger relationships, but the situation has improved since then.