Wangmy contributed targeted maintenance and upgrade work to the zephyrproject-rtos/poky repository, focusing on build system configuration and package management using Bitbake. Over two months, Wangmy upgraded the X Server Xorg component to version 21.1.15 and the GnuPG package to 2.4.5, ensuring both stability and security improvements. Each upgrade involved updating the packaging recipes and refreshing SHA256 checksums to maintain source integrity and alignment with repository standards. The work demonstrated a methodical approach to keeping core system components current, with careful validation of build processes and adherence to best practices in build systems and package management.