Worked on the zephyrproject-rtos/poky repository, focusing on targeted package upgrades and build system maintenance over a two-month period. Upgraded the X Server Xorg component from version 21.1.14 to 21.1.15, updating the associated SHA256 checksum to ensure source integrity and maintain system stability. Delivered a subsequent upgrade of the GnuPG package from 2.4.4 to 2.4.5, revising the packaging recipe and validating build alignment with repository standards. Employed Bitbake for build system configuration and package management, emphasizing reliability and up-to-date dependencies. The work centered on routine maintenance, version tracking, and ensuring secure, reproducible builds within the project.