Taffer 🇨🇦
I've got a couple of HEOS-supporting devices from Denon, which also support AirPlay. I wanted to be able to play audio from my laptop (EndeavourOS; aka Arch, BTW).
*Finding* the info was harder than setting it up: https://wiki.archlinux.org/title/PipeWire#Streaming_audio_to_an_AirPlay_receiver
As soon as I followed that, my HEOS devices showed up as audio devices in the sound settings. Looks like they vanish when the devices go to sleep though, so I have to figure that out.