Looking through the yada edge example project some more, is there any documentation on how the manifold event bus is being used? I see that it’s being set up via integrant and used in the phonebook namespace to publish events capturing entry updates, but I don’t see anything subscribing to that bus. Is it still a demo-in-progress?

It's used by the Graphql subscriptions.

That's its only purpose so far.

It does need some docs though. Definitely a work in process.