Worked on the th-ch/youtube-music repository to enhance the reliability and user experience of the synced lyrics feature by addressing timing inaccuracies. Focused on refining the parsing of milliseconds within lyric synchronization, the developer improved the regular expression logic and centiseconds handling in TypeScript to restore accurate lyric timing. This targeted bug fix reduced desynchronization incidents across displays, resulting in smoother lyric presentation for users. The approach emphasized minimal code changes to lower regression risk, demonstrating careful patching practices in a live front end environment. The work showcased skills in TypeScript, front end development, and precise time parsing for multimedia applications.