Worked on the audacity/audacity repository to enhance runtime safety and stability by addressing a critical bug related to null pointer handling. Focused on C++ development, the work involved introducing comprehensive sanity checks and assertions around pointer usage in high-risk code paths, effectively reducing the likelihood of crashes and undefined behavior. Emphasized defensive programming practices by documenting code invariants and adding detailed comments to support future debugging and static analysis. This targeted improvement strengthened error handling and software debugging processes, resulting in more reliable application behavior and improved maintainability for the codebase, even though no new features were added during the period.