Worked on enhancing media stream reliability in the whereby/sdk repository by delivering Media Stream Retrieval Improvements focused on handling constrained device environments. Developed a getSingleStream helper and refactored the existing getStream function to support retrieval of either audio or video streams when the other is unavailable or denied, addressing edge cases that previously led to streaming failures. Expanded unit test coverage to include retry scenarios for NotFoundError and NotAllowedError, improving error handling and resilience. Utilized JavaScript and TypeScript alongside the MediaDevices API and WebRTC, with an emphasis on maintainability, robust error management, and comprehensive test-driven development practices.