Text and Tags

Appears at first glance to be a message broker. There is a publish-subscribe stream where some services write and others read.

Topics may contain sub-topics (recursive.)

Topics contain messages.

Messages may have replies (which are also messages.)

If a user is tagged with an @, an event is posted to that user's private DM topic stream with a link to the original event

Messages also have attributes, colors, up and downvotes.

TODO might be worth checking out.