{ pkgs, ... }:
{
  # Enable sound.
  hardware.pulseaudio = {
    enable = true;
    package = pkgs.pulseaudioFull;
    # decouple pulseaudio application and sink volumes
    daemon.config = {
      flat-volumes = "no";
    };
    # C3D2 hq music
    zeroconf.discovery.enable = true;
    zeroconf.publish.enable = true;
  };
}