I think we could discuss on implementation details like URLs and Handles.

@nick@eapl.me (Masto/Yarn style) vs @nick.eapl.me and @eapl.me (Bsky style)

I see, for example, that yarn shows my account as @eapl.me@eapl.me which looks 'weird' although it's not wrong since my domain and my nick are the same. Honestly I like more the Bsky approach as in https://bsky.app/profile/eapl.me for @eapl.me, as when you look for https://eapl.me, it's my home page.

Also, I didn't get it completely if you are also proposing a URL standard using subdomains, like https://nick.domain.tls. I only want to point out that these are more difficult to handle from shared hostings, so I'd prefer to also allow https://domain.tls/nick/