During December 2025, Alex Zheng refactored the VCF constants and CAN interface in the hytech-racing/VCF repository, focusing on improving maintainability and reliability for embedded systems. He decoupled hardware constants from the main module and standardized naming conventions, which clarified module boundaries and simplified future development. Using C++ and leveraging his experience in real-time systems and hardware interfacing, Alex stabilized CAN initialization and resolved a critical main_can_multiple definition error, reducing integration risk. He enhanced documentation and comments to support ongoing maintenance and collaborated closely with teammates through code reviews, ensuring robust, well-documented changes that facilitate smoother onboarding and future enhancements.