Worked on the acidanthera/audk repository to improve IO stability and maintainability within embedded systems using C. Addressed a bug by reverting the BUFSIZ macro to the standard definition from stdio.h, which resolved inconsistencies that had emerged after an OpenSSL-related update. This change restored consistent IO buffering behavior across modules, reducing divergence between components and aligning the project with standard library practices. The approach emphasized maintainable build systems by eliminating project-specific macro definitions, ensuring future compatibility. Throughout the month, the focus remained on refining core system behavior rather than adding new features, demonstrating attention to foundational code quality and reliability.