Refactor back to a more modular configuration

modules/nixos/core/pipewire.nix

@@ -0,0 +1,23 @@
+{ config, lib, ... }:
+
+with lib;
+
+let
+  cfg = config.nixosModules.core.pipewire;
+in
+{
+  options.nixosModules.core.pipewire.enable = mkEnableOption "Enable pipewire";
+
+  config = mkIf cfg.enable {
+    services.pipewire = {
+      enable = true;
+
+      alsa = {
+        enable = true;
+        support32Bit = true;
+      };
+
+      pulse.enable = true;
+    };
+  };
+}