{
  config,
  lib,
  pkgs,
  namespace,
  ...
}:
let
  cfg = config.${namespace}.hardware.raspberry-pi.audio;
  variant = config.${namespace}.hardware.raspberry-pi.variant;
in
{
  options.${namespace}.hardware.raspberry-pi.audio = {
    enable = lib.mkEnableOption "enable audio dt overlays";
  };

  config = lib.mkIf cfg.enable {
    hardware.deviceTree = {
      overlays =
        with pkgs.${namespace};
        (
          if (variant == "5") then
            [
              {
                name = "pisound-pi5-overlay";
                dtsFile = "${raspberrypi-overlays}/dtbs/raspberrypi-overlays/pisound-pi5-overlay.dts";
              }
            ]
          else
            [
              {
                name = "pisound-overlay";
                dtsFile = "${raspberrypi-overlays}/dtbs/raspberrypi-overlays/pisound-overlay.dts";
              }
            ]
        );
    };
  };
}