Is it possible or does it present difficulties with federation?
I’m asking because today Vlemmy seems dead and people are speculating it has something to do with losing the domain name. So I want to know if there is a possibility the same server could come up again under a different domain but keeping the same accounts and content stored or if they will need to set up a new server and thus it’s just better to move on to another instance.
That seems somewhat silly.
With email servers, local messages are passed without the domain. Same with HTML. It’s only when “federating” to other servers that a domain is required. I can’t really see why ActivityPub would be any different in what it requires.
If Matrix is requiring the domain, that’s likely to do with encryption and validation, which has always been an issue with Internet 1.0 services. But it seems to me it should still be possible, just not done with current server implementations.