Rafael Park modernized the backend of the ubclaunchpad/clinical-logging repository by restructuring the codebase to use modular services and middleware, replacing a monolithic index file. He implemented a new Create User endpoint that persists user data to a Supabase database, introducing scalable user management to the system. His work included updating environment configurations to securely handle Supabase connection details, improving deployment readiness and data integrity. Using JavaScript, Node.js, and Express.js, Rafael focused on maintainability and future extensibility, laying the groundwork for additional user lifecycle features. The depth of the refactor addressed both code organization and secure data persistence concerns.