Worked on cross-repository code health and build-quality improvements within the Zephyr4Microchip/zephyr and zephyrproject-rtos/zephyr repositories, focusing on embedded systems and firmware development using C. Addressed a bug in event flags handling by initializing an uninitialized variable to eliminate clang warnings, directly improving code reliability. Additionally, performed ARM64 MMU code cleanup by removing or relocating unused functions, which reduced -Wunused-function warnings and enhanced maintainability. These efforts targeted both bug resolution and feature refinement, resulting in cleaner builds and more efficient debugging. The work demonstrated a methodical approach to low-level programming and contributed to more reliable Zephyr project releases.