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.
Data normalization has nothing to do with it.
All Matrix channels are a channel name and a domain. That’s a unique identifier. You need unique identifiers. Matrix is not designed to exist in an vacuum (even if you can make it work that way). Locality is dictated by policy not by the data model.