Nice to see a blogpost on the Mastodon blog about implementing a basic ActivityPub server https://blog.joinmastodon.org/2018/06/how-to-implement-a-basic-activitypub-server/
(Though technically webfinger isn't needed for activitypub, but it is for mastodon interop!)
@cwebber I'm curious how subscribing between different AP server implementations is going to work UX-wise. Mastodon, Pleroma and peertube all work with the user @ domain webfinger scheme, but what identifiers shall be used for implementations lacking webfinger?
@notclacke @schmittlauch @cwebber Honestly though, I've always liked the user@instance format that other federated networks use. It's a pretty useful way to think about users across the network; conceptually that identifier feels closer to email.
URL works okay, but the flow and the logic is kind of different.
@cwebber @deadsuperhero @notclacke @schmittlauch For the most part it seems to be based on the (mistaken) assumption that if users address each other by user@domain, then so should computers. But that's not really a valid or useful assumption... it's also already caused issues that have been solved in suboptimal ways (re: case sensitivity, account migration, username changes, etc)