nix-user-module/modules/audio.nix

{ config, lib, pkgs, ... }:

let
  cfg = config.c3d2.audioStreaming;
in
{
  options = {
    c3d2.audioStreaming = lib.mkEnableOption "enable all services requires to audio stream to dacbert, glotzert or pulsebert";
  };

  config = lib.mkIf cfg {
    hardware.pulseaudio.zeroconf.discovery.enable = true;

    security.rtkit.enable = true;

    services = {
      avahi = {
        enable = true;
        nssmdns = true;
      };

      pipewire = {
        config.pipewire-pulse =
          let
            default-pipewire-pulse = lib.importJSON (pkgs.path + "/nixos/modules/services/desktops/pipewire/daemon/pipewire-pulse.conf.json");
          in
          default-pipewire-pulse // {
            "context.modules" = default-pipewire-pulse."context.modules" ++ [
              {
                "name" = "libpipewire-module-zeroconf-discover";
              }
            ];
          };
        pulse.enable = true;
      };
    };
  };
}