Well, here's another vote for multicast support to multiple clients.  This would open up an implementation for whole house audio.  You could have a client per zone (headless) and be able to push audio to multiple zones from a single phone client.   In theory, I could create a headless raspberry pi emby client for each zone. This array of a dozen emby client pi's would act as individual inputs to a 12 zone amp.  The array could sit right with the amplifier in the server room.  At that point,