As FEP-proposal C2S: websocket endpoint is being used for more technical discussions on particular implementation choices, that I’ve already made my mind up on. I’m posting this in a linked topic.
I’ve split away ActivityPub Client API from my notes on how to improve client to server. The main point being: This will be the only important part a lot of developers. There will be some technical magic to get to this API from an ActivityPub server, but once it is implemented one no longer needs to worry about the details.