In January 2025, Chris Pillsbury enhanced the flowplayer/hls.js repository by developing a robust multi-DRM handling feature within the EME controller. He refactored the controller to accurately select the appropriate key system based on PSSH data, ensuring reliable playback in environments where only specific DRM technologies, such as PlayReady, are available. Chris improved logging to facilitate faster debugging of DRM mismatches and strengthened key ID matching and session generation to reduce playback failures. This work, implemented using JavaScript and TypeScript with a focus on frontend development and media playback, addressed complex DRM interoperability challenges and laid groundwork for broader DRM support.