[jdp23]

Yeah when there are multiple causes it's hard to know how much each contributed.

AcitivityPub's also meant to be extended, there are FEPs, and it's likely that the working group will come up with a new version as well. That said there certainly are differences between XMPP and ActivityPub, most people say the ActivityPub ecosystem is significantly farther along than XMPP was.

I could imagine Meta doing an open-source AP server (and with a fresh start it would be cleaner base than Mastodon). I also wouldn't be surprised if the release a app building toolkit / framework / whatever ... there isn't a good one now, they do that stuff well, and as they introduce proprietary AP extensions then they toolkit is a good way to get people to adopt them. But it's very hard to know at this point, it's also possible it's just PR spin and they won't really invest in it. We shall see.

Anyhow, good discussion, thanks much!