diff --git a/hosts/FredOS-Macbook.nix b/hosts/FredOS-Macbook.nix
index 3136e5b..5ef0ee2 100644
--- a/hosts/FredOS-Macbook.nix
+++ b/hosts/FredOS-Macbook.nix
@@ -33,10 +33,30 @@
       HandleLidSwitchExternalPower = "suspend";
     };
 
-    home-manager.users.fred = { ... }: {
+    home-manager.users.fred = { pkgs, ... }: {
       wayland.windowManager.hyprland.settings.monitor =
         [ ",preferred,auto,auto" ];
 
+      # wob reads 0-100 integers from a FIFO and shows a progress bar overlay
+      systemd.user.services.wob = {
+        Unit = {
+          Description = "Wayland OSD Bar";
+          After = [ "graphical-session.target" ];
+          PartOf = [ "graphical-session.target" ];
+        };
+        Service = {
+          Type = "simple";
+          ExecStart = "${pkgs.writeShellScript "wob-start" ''
+            rm -f "%t/wob.fifo"
+            mkfifo "%t/wob.fifo"
+            tail -f "%t/wob.fifo" | ${pkgs.wob}/bin/wob
+          ''}";
+          ExecStopPost = "${pkgs.coreutils}/bin/rm -f %t/wob.fifo";
+          Restart = "on-failure";
+        };
+        Install.WantedBy = [ "graphical-session.target" ];
+      };
+
       systemd.user.services.kbd-backlight-init = {
         Unit = {
           Description = "Set keyboard backlight to 10% on login";
diff --git a/settings/hyprland.nix b/settings/hyprland.nix
index d6a65e3..eb90b6a 100644
--- a/settings/hyprland.nix
+++ b/settings/hyprland.nix
@@ -313,8 +313,18 @@ in
             ", XF86MonBrightnessUp,   exec, swayosd-client --brightness raise"
             ", XF86MonBrightnessDown, exec, swayosd-client --brightness lower"
           ] ++ lib.optionals isMacbook [
-            ", XF86KbdBrightnessUp,   exec, brightnessctl -d smc::kbd_backlight set +10%"
-            ", XF86KbdBrightnessDown, exec, brightnessctl -d smc::kbd_backlight set 10%-"
+            ", XF86KbdBrightnessUp,   exec, ${pkgs.writeShellScript "kbd-bright-up" ''
+              ${pkgs.brightnessctl}/bin/brightnessctl -d smc::kbd_backlight set +10%
+              brightness=$(${pkgs.brightnessctl}/bin/brightnessctl -d smc::kbd_backlight get)
+              max=$(${pkgs.brightnessctl}/bin/brightnessctl -d smc::kbd_backlight max)
+              echo $(( brightness * 100 / max )) > "$XDG_RUNTIME_DIR/wob.fifo"
+            ''}"
+            ", XF86KbdBrightnessDown, exec, ${pkgs.writeShellScript "kbd-bright-down" ''
+              ${pkgs.brightnessctl}/bin/brightnessctl -d smc::kbd_backlight set 10%-
+              brightness=$(${pkgs.brightnessctl}/bin/brightnessctl -d smc::kbd_backlight get)
+              max=$(${pkgs.brightnessctl}/bin/brightnessctl -d smc::kbd_backlight max)
+              echo $(( brightness * 100 / max )) > "$XDG_RUNTIME_DIR/wob.fifo"
+            ''}"
           ];
 
           bindl = [