feat(modules): hardware modules — intel/amd/nvidia/audio/bluetooth/touchpad

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

modules/hardware/audio.nix

@@ -0,0 +1,48 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+let
+  inherit (lib) mkEnableOption mkIf;
+in
+{
+  options.hardware.audio.pipewire.enable = mkEnableOption "PipeWire audio system";
+
+  config = mkIf config.hardware.audio.pipewire.enable {
+    # PipeWire configuration
+    security.rtkit.enable = true;
+
+    services.pipewire = {
+      enable = true;
+      alsa.enable = true;
+      alsa.support32Bit = true;
+      pulse.enable = true;
+      jack.enable = true;
+    };
+
+    # Audio packages
+    environment.systemPackages = with pkgs; [
+      # Audio control
+      pavucontrol
+      pulsemixer
+      alsamixer
+
+      # Audio tools
+      audacity
+      pulseaudio
+
+      # Bluetooth audio
+      bluez
+      bluez-tools
+    ];
+
+    # Disable PulseAudio (conflicts with PipeWire)
+    services.pulseaudio.enable = false;
+
+    # Audio group for user
+    users.groups.audio = { };
+  };
+}