During April 2025, Alec Cardoso focused on stabilizing the DirectXShaderCompiler test harness by addressing a resource lifecycle issue in the ShaderOpTest within the libsdl-org/DirectXShaderCompiler repository. He refactored the management of HANDLE resources by moving their creation to the test class constructor and ensuring proper closure in the destructor, which eliminated resource leaks and improved test reliability. Working primarily in C++ and applying strong resource management and unit testing skills, Alec’s changes reduced flaky test behavior and contributed to more robust, ship-ready shader compilation features. The work demonstrated careful attention to lifecycle management and test infrastructure stability.