Worked on expanding audiobook format compatibility in the music-assistant/server repository by implementing support for Opus-encoded audiobooks. This involved extending the server’s configuration management to recognize and handle the 'opus' format, allowing users to discover and play Opus audiobooks within the library. The approach required careful modification of format handling logic and collaboration within the repository to ensure seamless integration. Python was used to update the relevant code paths, with attention to testing considerations for new format support. The result broadened the library’s reach, improved user experience for those with Opus content, and streamlined onboarding of additional audiobook formats.