In December 2025, Huweihua focused on improving the accuracy of resource reporting in the apache/flink repository. He refactored the runtime system to pass the total number of slots through WorkerRegistration rather than SlotReport, using Java and backend development skills. This change clarified the separation between current slot usage and total capacity, addressing a longstanding issue where slot availability was misreported. By updating both tests and documentation, Huweihua ensured the new design was robust and maintainable. The work enhanced scheduler reliability and user observability, demonstrating a thoughtful approach to system correctness and a deep understanding of Apache Flink’s architecture.