@julian@activitypub.space Here's what Takahē has to say on the subject: https://docs.jointakahe.org/en/latest/domains/Even they don't go all the way, they “only” let server admins add a selection of WebFinger domains for users to choose from.So what if we put a “handle domain” field into people's account settings, let them enter whatever they want, and on submission we test whether that domain's WebFinger query for the username in question returns a valid result pointing back to our local actor?I honestly think this would work.