During September 2025, Trf230001 developed a foundational authentication and authorization system for the UTDallasEPICS/xuchil repository, focusing on scalable role-based access control. They refactored the user model to AuthUser, introduced Role and UserRole entities, and added a Worker model to represent employee roles, enabling granular permission management. Using Prisma ORM and leveraging backend development and database schema design skills, Trf230001 established the initial data schema and migrations for users and roles. While no bugs were addressed during this period, the work laid essential groundwork for secure, maintainable access control, setting the stage for future enterprise-grade authentication and authorization features.