Worked on the geerlingguy/linux repository to improve build system reliability by addressing a cleanup issue in the kernel’s Makefile. Focused on ensuring that the make clean command unconditionally removes generated ARM and ARM64 assembly files in the lib/crypto directory, the developer eliminated stale artifacts that previously caused build failures in cross-architecture CI pipelines. This change enhanced reproducibility and maintainability across platforms by standardizing cleanup behavior. The work involved kernel development and build system expertise, utilizing Makefile scripting to refine the cleanup process. These improvements contributed to cleaner builds and more robust continuous integration for multi-architecture Linux kernel development workflows.