started modifing configuration structure

system/audio/default.nix

@@ -0,0 +1,18 @@
+{ ... }:
+{
+  hardware.pulseaudio = {
+    support32Bit = true;
+    daemon.config = {
+      flat-volumes = "yes";
+    };
+  };
+
+  security.rtkit.enable = true;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+    pulse.enable = true;
+    jack.enable = true;
+  };
+}