pianonix: try getting piano-led-visualizer to run

Still did not work, using raspberrypi os

hosts/pianonix/default.nix

@@ -26,6 +26,26 @@
     ../common/optional/avahi.nix
   ];
 
+  environment.systemPackages = [
+    (pkgs.python3.withPackages (p:
+      with p; [
+        numpy
+        pillow
+        flask
+        rpi-gpio
+        webcolors
+        psutil
+        mido
+        rtmidi-python
+        spidev
+        waitress
+        websockets
+        werkzeug
+
+        pkgs.frajul.rpi-ws281x-python
+      ]))
+  ];
+
   # disko.devices.disk.main.device = "/dev/mmcblk1";
 
   # enabled by fish, disabling speeds up builds
@@ -169,7 +189,7 @@
     };
   };
 
-  networking.firewall.enable = true;
+  networking.firewall.enable = false;
   networking.firewall.allowedTCPPorts = [
     5900 # for vnc
   ];
@@ -201,7 +221,7 @@
   hardware.raspberry-pi."4".apply-overlays-dtmerge.enable = true;
   hardware.deviceTree = {
     enable = true;
-    filter = lib.mkForce "*-rpi-*.dtb";
+    filter = lib.mkForce "*-rpi-4*.dtb";
     overlays = [
       {
         name = "spi";
@@ -234,4 +254,23 @@
 
   ## My own Piano LED Visualizer
   services.piano-led-visualizer.enable = true;
+
+  ## Crude fix for avahi
+  systemd.timers.avahiRestart = {
+    description = "Restart avahi-daemon every 5 minutes";
+    wantedBy = ["timers.target"];
+    timerConfig = {
+      OnBootSec = "5min";
+      OnUnitActiveSec = "5min";
+      Unit = "avahiRestart.service";
+    };
+  };
+
+  systemd.services.avahiRestart = {
+    description = "Restart avahi-daemon service";
+    serviceConfig = {
+      Type = "oneshot";
+      ExecStart = "${pkgs.systemd}/bin/systemctl restart avahi-daemon.service";
+    };
+  };
 }

hosts/pianonix/hardware-configuration.nix

@@ -15,6 +15,7 @@
   boot.kernelModules = [];
   boot.extraModulePackages = [];
   boot.kernelPackages = pkgs.linuxKernel.packages.linux_rpi4;
+  boot.blacklistedKernelModules = ["snd_bcm2835"]; # Disables sound, required for ws281x to work
   # boot.supportedFilesystems = lib.mkForce [
   #   # remove zfs, since its incompatible with latest kernel
   #   "vfat"