Add Musnix and enable JACK.

.bauke/nix/stardust/configuration.nix

@@ -4,6 +4,7 @@
 
 {
   imports = [
+    <musnix>
     ./hardware-configuration.nix # Created by nixos-generate-config.
     ./packages.nix
     ./programs-services.nix
@@ -11,6 +12,8 @@
     ./users.nix
   ];
 
+  musnix.enable = true;
+
   nix = {
     settings.experimental-features = [ "flakes" "nix-command" ];
   };

.bauke/nix/stardust/programs-services.nix

@@ -35,6 +35,7 @@
       alsa.support32Bit = true;
       enable = true;
       pulse.enable = true;
+      jack.enable = true;
     };
 
     usbmuxd.enable = true;