In September 2025, Zhilei Huang delivered a complete integration of the TokenPony LLM provider for the infiniflow/ragflow repository, expanding the system’s backend options and allowing users to compare different LLM providers within the platform. This work involved end-to-end engineering, including backend integration using Python and TypeScript, updating system constants, and wiring new UI elements in React to support seamless provider selection. Zhilei ensured the feature was fully configurable and release-ready, addressing both infrastructure and user interface requirements. While the scope was focused on a single feature, the implementation demonstrated solid full stack development skills and attention to integration detail.