Worked on stabilizing and enhancing development workflows for the renesas/zephyr and zephyrproject-rtos/zephyr repositories, focusing on debugging reliability and hardware bring-up. Delivered features such as resilient SIGINT handling during GDB sessions and unified signal handling APIs, reducing terminal state issues and streamlining code maintenance. Implemented I2C bus recovery for the Renesas RA controller using GPIO bitbanging, enabling recovery from bus lockups through device tree-driven hardware reconfiguration. Leveraged C and Python for backend development, device driver work, and embedded systems programming. These contributions improved developer productivity, increased hardware reliability, and enhanced maintainability across both repositories within a single month.