Brendan Kelly worked on the scsd-cdh/OBC repository, focusing on embedded systems and firmware development using C. During October 2025, he addressed a critical communication issue between the BMS and CDH subsystems by analyzing and correcting the hardware initialization sequence. Brendan reordered the clock and GPIO setup to ensure proper hardware configuration, which stabilized the acknowledgment process during system startup. This targeted fix reduced intermittent communication failures and improved overall system reliability. His work demonstrated a methodical approach to debugging and validating embedded firmware, delivering a robust solution that enhanced data transfer reliability without introducing new features during the period.