During December 2024, Andre Gui worked on the shadps4-emu/ext-SDL repository, focusing on refining the PS2 build system. He streamlined the CMake configuration by removing redundant sdl_include_directories and target_include_directories entries, as well as eliminating unnecessary EXTRA_CFLAGS. This cleanup clarified the PS2 SDK and gsKit path setup, reducing maintenance overhead and making the build process more accessible for new contributors. Andre applied his expertise in build systems and CMake, working primarily with C. The work demonstrated careful attention to maintainability and onboarding, resulting in a cleaner, more understandable build configuration without introducing new features or bug fixes.