Sungchul worked on lablup/backend.ai and lablup/backend.ai-webui, focusing on feature development that improved configurability and reliability. He implemented a Kernel List Visibility Configuration, enabling administrators to control kernel list display in the session detail panel by wiring backend settings through to frontend templates using Python, Jinja2, and TypeScript. In a separate update, he enhanced GitHub host detection for the AI import workflow, adding support for codeload.github.com to increase robustness and reduce import failures. His work demonstrated a strong grasp of backend and frontend development, with careful attention to configuration management, maintainability, and traceability across both repositories.