Add OpenRGB

hosts/muon/configuration.nix

@@ -10,7 +10,7 @@
   cfg = config.mods;
 in {
   # Hardware
-  imports = [./hardware-configuration.nix];
+  imports = [./hardware-configuration.nix ./openrgb.nix];
 
   environment.systemPackages = with inputs.nix-alien.packages.${system}; [
     nix-alien

hosts/muon/openrgb.nix

@@ -0,0 +1,29 @@
+{
+  pkgs,
+  lib,
+  ...
+}: let
+  no-rgb = pkgs.writeScriptBin "no-rgb" ''
+    #!/bin/sh
+    NUM_DEVICES=$(${pkgs.openrgb}/bin/openrgb --noautoconnect --list-devices | grep -E '^[0-9]+: ' | wc -l)
+
+    for i in $(seq 0 $(($NUM_DEVICES - 1))); do
+      ${pkgs.openrgb}/bin/openrgb --noautoconnect --device $i --mode static --color 000000
+    done
+  '';
+in {
+  config = {
+    services.udev.packages = [pkgs.openrgb];
+    boot.kernelModules = ["i2c-dev"];
+    hardware.i2c.enable = true;
+
+    systemd.services.no-rgb = {
+      description = "no-rgb";
+      serviceConfig = {
+        ExecStart = "${no-rgb}/bin/no-rgb";
+        Type = "oneshot";
+      };
+      wantedBy = ["multi-user.target"];
+    };
+  };
+}