Sound for MacOS on KVM/Bazzite

I have a MacOS VM running Sequoia well on KVM-QEMU on Bazzite DX with Gnome, and in virt-manager. I used ULTMOS, here.

The only issue I have right now is sound. I know I’ll have to mess with drivers on the Mac, but first I need to understand how to make the Framework 12 sound device available to QEMU. I’ve found several suggestions of XML configuration I can try in virt-manager. I keep getting errors that pipewire is unavailable or that pulseaudio connection is refused.

Anyone get this working in Bazzite or a related distribution, like Fedora SilverBlue or Bluefin? Thanks-