pianonix: try getting piano-led-visualizer to run

Still did not work, using raspberrypi os

modules/nixos/piano-led-visualizer.nix

@@ -26,6 +26,9 @@ in {
     users.users.${cfg.user} = {
       isSystemUser = true;
       group = cfg.group;
+      createHome = true;
+      home = "/home/${cfg.user}";
+      extraGroups = ["wheel" "gpio"];
     };
     users.groups.${cfg.group} = {};
 
@@ -36,11 +39,12 @@ in {
       wantedBy = ["multi-user.target"];
 
       serviceConfig = {
+        WorkingDirectory = "/home/${cfg.user}/Piano-LED-Visualizer";
         ExecStart = "${pkgs.frajul.piano-led-visualizer}/bin/piano-led-visualizer";
         Restart = "always";
         Type = "simple";
-        User = cfg.user;
-        Group = cfg.group;
+        # User = cfg.user;
+        # Group = cfg.group;
       };
     };
   };