Is multiple output support on the roadmap?

[Alexa6207]

I've seen a few people asking about running multiple instances, clearly to try to support multiple audio outs from a device. Instead, are there any plans to expand the project to be able to define an array of sinks and outputs?

[mikebrady]

Shairport Sync can already do the multiple instances thing, but AirPlay 2 players seem to get confused by having multiple audio outs on the same IP numbers.

[noelhibbard]

ALSA can easily be configured to output to multiple outputs.