Harris Borawski focused on improving the stability of the iOS player within the player-ui/player repository by addressing a crash that occurred during the class-finding workflow. Using Swift and JavaScriptCore, Harris implemented explicit checks for undefined values before accessing nested JavaScript properties, thereby preventing exceptions that previously led to application crashes. This targeted fix enhanced the robustness of the class discovery process, reducing crash rates and contributing to a smoother user experience on iOS. The work demonstrated a careful approach to defensive programming and a deep understanding of cross-language interactions between Swift and JavaScriptCore in a production mobile environment.