@prologic@twtxt.net Unfortunately the RFC’s are a bit light in this regard. While it makes mention of different kinds of accounts like mailto: or status services.. it never combines them. It does make mention of using redirects to forward a request to other webfingers to provide additional detail.

I am kinda partial to using salty:acct:me@sour.is, yarn:acct:xuu@txt.sour.is, mailto:me@sour.is that could redirect to a specific service. and a parent account acct:me@sour.is that would reference them in some way. either in properties or aliases.