Perhaps I am missing something, but… like we have level sensing in the AHM, there should be some kind of general event listener. Events could be like: zone mute/unmute, IP level change… etc. – this could then activate a device control command, which supports HTTP.
I’m well aware that A&H does not try to be Crestron or Kramer here, and it’s also not what I would suggest. Like lowering the blinds and powering up the projector, probably not the task for an AHM system. But there might be smaller targets around there.
Also, how about Open Sound Control (OSC) as device control? It seems to be a simple network protocol and there is so many targets supporting it. Plus, the commands are also very simple to construct for the maintainer of an AHM.
(I see some folks would also love to have OSC in the DLive… Support for OSC - #16 by GHPAudio – probably more to control their DLive than to have their DLive control things.)