Worked on the elevenlabs/packages repository to deliver concurrent audio playback by introducing an AudioSessionConfiguration interface and integrating an audioSessionConfig prop into the ElevenLabsProvider. Leveraged React and TypeScript to wire audio session configuration directly to LiveKit session behavior, enabling flexible audio management based on the allowMixingWithOthers setting. Refactored the API for naming consistency, renaming audioSessionConfiguration to audioSessionConfig, which introduced a breaking change and required comprehensive documentation updates. Updated the README with migration guidance and usage instructions, and improved repository hygiene by refining the .gitignore file. Focused on feature development, with no major bug fixes during this period.