During October 2025, Oscar contributed to the libsdl-org/SDL repository by refactoring header files to improve compatibility between C and C++. He focused on enhancing type safety and reducing compiler warnings when SDL headers are included in C++ projects. Oscar achieved this by introducing cast operators within the headers, ensuring that type conversions are explicit and safer for downstream consumers. Working primarily with C and C++ and applying his expertise in header file management, he delivered a targeted feature that preserves existing behavior while making the codebase more robust for cross-language development. The work addressed a specific interoperability concern with thoughtful precision.