During January 2025, Chris Pillsbury enhanced the flowplayer/hls.js repository by building a robust multi-DRM handling feature within the DRM Controller. He refactored the EME controller to accurately select the appropriate key system based on PSSH data, ensuring reliable playback in mixed DRM environments such as those limited to PlayReady. His work included improving logging for DRM mismatch scenarios, tightening key ID matching, and refining session generation logic. Utilizing JavaScript and TypeScript, Chris focused on frontend development and media playback, delivering a well-architected solution that reduces DRM-related playback failures and establishes a solid foundation for broader DRM support in the future.