Worked on the livekit/agents repository to address a critical memory leak issue by refining the RoomIO teardown lifecycle. Focused on asynchronous and event-driven programming in Python, the developer improved resource management by ensuring event listeners were properly unregistered and resources closed during teardown. This targeted fix resolved problems that appeared during repeated connect and disconnect cycles, leading to more predictable teardown behavior and a reduced memory footprint in production. The work also enhanced code quality by clarifying teardown patterns, making the lifecycle easier to maintain and less prone to errors. Unit testing supported these changes to ensure ongoing reliability.