Worked on the isaac-sim/IsaacLab repository to enhance device event handling by addressing a bug in the gamepad subscription API for SE2 and SE3 devices. Focused on improving reliability, the developer corrected the Omniverse API call used for unsubscribing from gamepad events and updated the unsubscribe method name to prevent stale subscriptions. This targeted fix ensured that device management processes remained robust and responsive. The work involved Python programming and leveraged skills in API integration and bug fixing. Over the course of the month, the developer concentrated on backend stability, contributing to a smoother developer experience without introducing new features.