nix-config/system/hardware/sound.nix

{
  lib,
  config,
  pkgs,
  ...
}:
with lib; let
  cfg = config.mySystem.hardware.sound;
in {
  options.mySystem.hardware.sound = {
    enable = mkEnableOption "Whether to enable sounds";
    usePulseaudio = mkEnableOption "Activate sound support with pulseaudio";
    scarlett.enable = mkEnableOption "Activate support for Scarlett sound card";
    alsa = mkOption {
      type = types.bool;
      example = true;
      default = true;
      description = "Whether to enable ALSA support with Pipewire";
    };
    jack = mkOption {
      type = types.bool;
      example = true;
      default = false;
      description = "Whether to enable JACK support with Pipewire";
    };
    package = mkOption {
      type = types.package;
      example = pkgs.pulseaudio;
      default = pkgs.pulseaudioFull;
      description = "Which base package to use for PulseAudio";
    };
  };

  config = {
    environment.systemPackages = mkIf cfg.scarlett.enable [pkgs.alsa-scarlett-gui];
    services = {
      pipewire.enable = mkForce (cfg.enable && ! cfg.usePulseaudio);
      pipewire.alsa = {
        enable = mkDefault true;
        support32Bit = mkDefault true;
      };
      pipewire.jack.enable = cfg.jack;
      pulseaudio.enable = cfg.usePulseaudio;
    };
    programs.noisetorch = mkIf cfg.enable {
      inherit (cfg) enable;
    };
  };
}