pinwheel: Add screen brightness control

hosts/pinwheel/configuration.nix

@@ -12,6 +12,7 @@
       ./modules/ssh
       ./modules/syncthing
       ./modules/firefox
+      ./modules/light
     ];
 
   nix.settings.experimental-features = [ "nix-command" "flakes" ];

hosts/pinwheel/modules/light/default.nix

@@ -0,0 +1,16 @@
+{ home-manager, pkgs, ... }:
+{
+  users.users.alex.extraGroups = [ "video" ];
+  programs.light.enable = true;
+
+  home-manager.users.alex = {
+    wayland.windowManager.hyprland = {
+      settings = {
+        bind = [
+          ", XF86MonBrightnessUp, exec, ${pkgs.light}/bin/light -A 5"
+          ", XF86MonBrightnessDown, exec, ${pkgs.light}/bin/light -U 5"       
+        ];
+      };
+    };
+  };
+}