quickshell: cap tracked notifications at 30

settings/quickshell.nix

@@ -1748,6 +1748,14 @@ in
                     keepOnReload: true
                     onNotification: (notification) => {
                         notification.tracked = true;
+                        // Tracked notifications are never expired, and the list
+                        // renders through a Repeater — every delegate is live,
+                        // no view recycling. Left uncapped, a day's worth of
+                        // notifications is a day's worth of retained image
+                        // textures being repainted, which measurably starves
+                        // games of the GPU. Drop the oldest past the cap.
+                        const kept = [...(_notifServer.trackedNotifications.values)];
+                        for (let i = 0; i < kept.length - 30; i++) kept[i].dismiss();
                         root.latestNotification = notification;
                         root.notificationReceived();
                     }