We’ve got a couple of SONOS based multi-room-audio zones in our house and with the newest generation of SONOS speakers you can get Apple Airplay. Fancy!
But the older hardware does not support Apple Airplay due to it’s limiting hardware. This is too bad.
So once again Docker and OpenSource + Reverse-Engineering come to the rescue.
AirConnect is a small but fancy tool that bridges SONOS and Chromecast to Airplay effortlessly. Just start and be done.
It works a treat and all of a sudden all those SONOS zones become Airplay devices.
There is also a nice dockerized version that I am using.