hardware/sound: modularize

modules/hardware/sound/default.nix

@@ -0,0 +1,37 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.my.hardware.sound;
+in
+{
+  options.my.hardware.sound = {
+    enable = lib.mkEnableOption "sound configuration with pipewire";
+  };
+
+  config = lib.mkIf cfg.enable {
+
+    # RealtimeKit is recommended
+    security.rtkit.enable = true;
+
+    services.pipewire = {
+      enable = true;
+
+      alsa = {
+        enable = true;
+        support32Bit = true;
+      };
+
+      pulse.enable = true;
+
+      jack.enable = true;
+    };
+
+    programs.noisetorch.enable = true;
+
+    environment.systemPackages = with pkgs; [
+      noisetorch
+      pavucontrol
+      playerctl
+      pulseaudio # provide pactl to enable keyboard shortcuts
+    ];
+  };
+}