Enable audio and add a basic home configuration

modules/audio.nix

@@ -0,0 +1,15 @@
+{ config, lib, pkgs, ... }:
+
+{
+ # Enable ALSA
+ sound.enable = true;
+
+ # Configure PulseAudio with mopidy tweaks
+  hardware.pulseaudio = {
+    enable = true;
+    tcp = {
+      enable = true;
+      anonymousClients.allowedIpRanges = [ "127.0.0.1" ];
+    };
+  };
+}