Worked on the espressif/qemu repository to deliver targeted bug fixes in embedded systems and device driver code, focusing on firmware update reliability and data integrity. Addressed a validation issue in the firmware update pipeline by ensuring vmem, pmem, and DC capacities are properly aligned to 256MiB, which improved upgrade safety and hardware management. Additionally, resolved a buffer index increment bug in the CXL mailbox’s DC extents retrieval, preventing data corruption for extents beyond the first. Leveraged expertise in C and low-level programming to stabilize memory and configuration validation, contributing to more robust firmware development and dependable system operations.