Add function volume and brightness key controls

modules/home/hyprland/binds.nix

@@ -51,6 +51,23 @@ in
       "$mod SHIFT, 5, movetoworkspace, 5"
     ];
 
+    # Repeatable binds (hold key to keep changing)
+    bindel = [
+      # Volume
+      ", XF86AudioRaiseVolume, exec, wpctl set-volume -l 1.0 @DEFAULT_AUDIO_SINK@ 5%+"
+      ", XF86AudioLowerVolume, exec, wpctl set-volume -l 1.0 @DEFAULT_AUDIO_SINK@ 5%-"
+
+      # Brightness
+      ", XF86MonBrightnessUp, exec, brightnessctl set +5%"
+      ", XF86MonBrightnessDown, exec, brightnessctl set 5%-"
+    ];
+
+    # Binds that also work while screen is locked
+    bindl = [
+      ", XF86AudioMute, exec, wpctl set-mute @DEFAULT_AUDIO_SINK@ toggle"
+      ", XF86AudioMicMute, exec, wpctl set-mute @DEFAULT_AUDIO_SOURCE@ toggle"
+    ];
+
     bindm = [
       "$mod, mouse:272, movewindow"
       "$mod, mouse:273, resizewindow"

modules/home/hyprland/hyprland.nix

@@ -10,6 +10,10 @@ let
   displayCfg = config.modules.display;
 in
 {
+  home.packages = with pkgs; [
+    brightnessctl
+  ];
+
   wayland.windowManager.hyprland = {
     enable = cfg.enable;
     package = pkgs.hyprland;

modules/nixos/user.nix

@@ -14,6 +14,7 @@ in
     initialPassword = "changeme";
     extraGroups = [
       "networkmanager"
+      "video"
       "wheel"
     ];
     shell = pkgs.${shellCfg.defaultShell};