Worked on build system configuration and kernel development across two repositories, focusing on reliability and memory safety. In OpenXiangShan/buildroot, addressed build portability by ensuring NFS Utils correctly handles systemd dependencies, improving build consistency on hosts lacking systemd through targeted Makefile changes. In geerlingguy/linux, fixed a use-after-free vulnerability in the Xilinx CAN driver by adjusting memory management in C, deferring resource release until after frame processing. These contributions enhanced system stability and security for embedded Linux environments. Demonstrated expertise in C, Makefile, and memory management, with a focus on robust device driver maintenance and cross-platform build process hardening.