Over a two-month period, Roma contributed to livekit/agents-js and langchain-ai/langgraphjs, focusing on backend and full stack development with TypeScript. In livekit/agents-js, Roma addressed a race condition in the TextAudioSynchronizer closure within AgentPlayout by refactoring closure logic and adding conditional task cancellation, which improved the reliability of real-time audio playback synchronization and reduced shutdown errors. For langchain-ai/langgraphjs, Roma enhanced the RemoteGraph API by propagating recursion limits and AbortController signals from configuration to API calls, enabling safer, more controllable remote graph executions. The work demonstrated depth in API integration, testing, and robust resource management for complex systems.