Worked on stabilizing hardware controller integration for the Numark Mixtrack Platinum within the mixxxdj/mixxx repository, focusing on resolving a regression affecting VU meter mapping. Addressed the issue by correcting the controller script naming schema using JavaScript, which restored accurate VU meter output and visual feedback across supported configurations. Employed embedded systems expertise to validate the fix through cross-device testing, ensuring consistent performance and preventing future regressions. Documented the changes thoroughly for future code reviews, contributing to improved reliability during live performances. The work demonstrated careful attention to hardware-software interaction and a methodical approach to debugging and quality assurance.