Here is a spec for multiplexing byte streams over a single connection: https://github.com/AljoschaMeyer/bymux

This is essentially an alternative to #packet-stream (which is used by muxpc which is currently used for ssb replication), and it deprecates #bpmux, my prior attempt at this. This time I'm fairly confident that I got the semantics right (backpressure, heartbeats, stream creation, stream closing semantics and their interactions are tricky). And this time I'm actually happy with the API. CC @dominic since we talked about this in Hamburg.

This is part of developing a replication protocol for #bamboo (CC @piet, @hoodownr), the replication protocol will need to multiplex at least the peer sampling service and the replication, and possibly a few more things.