Liying focused on enhancing developer documentation within the espressif/esp-dev-kits repository, delivering targeted updates for ESP32-S2-DevKitC-1 and ESP32-S2-DevKitM-1 boards. Using reStructuredText and rst, Liying replaced outdated visuals, improved formatting, and updated the Chinese user guide to provide clearer hardware references, directly supporting developer onboarding and reducing support needs. In March 2026, Liying migrated documentation to reflect the end-of-life status of ESP32-S2-DevKitM-1, adding explicit guidance for transitioning to ESP32-S2-DevKitC-1-N8R2. The work demonstrated depth in technical writing and documentation lifecycle management, ensuring accuracy and clarity for evolving hardware platforms.