There’s been proposals already, and i even think at least one (the Zot protocol thingie) already integrates with ActivityPub (faintly recall reading it at some point last week but could be wrong), but none of that is currently integrated in any way with any Fedi service. So i hope this is done in the not too far future, would rock to create an identity and use it on any Fedi service without needing to create an account on each instance.
There’s been proposals already, and i even think at least one (the Zot protocol thingie) already integrates with ActivityPub (faintly recall reading it at some point last week but could be wrong), but none of that is currently integrated in any way with any Fedi service. So i hope this is done in the not too far future, would rock to create an identity and use it on any Fedi service without needing to create an account on each instance.
I think it would be very difficult on different service, but possibile on different instances of the same service