Worked on the macvim-dev/macvim repository to restore build compatibility for sound features on Mac OS X 10.6, focusing on stabilizing legacy macOS support. Addressed a critical build failure by replacing generics with a non-generic Objective-C implementation, ensuring successful builds in both CI and local environments. This solution, delivered as patch 9.1.1897, resolved long-standing issues and prevented release blockers for contributors targeting older platforms. Collaborated closely with other team members through code review and patch co-authorship, applying expertise in Objective-C and macOS development to maintain accessibility for legacy systems and support ongoing contributor participation in the project.