Stephen Tanguis streamlined the user authentication flow for the gp-webapp repository, focusing on simplifying unauthenticated access and improving maintainability. He removed cookie-based return URL checks and decentralized redirect logic, instead centralizing all redirect behavior within the authHelper.js module. By eliminating unnecessary redirect parameters from requireAuth calls, Stephen reduced code duplication and minimized the risk of edge-case authentication bugs. His work, implemented in JavaScript using Next.js, concentrated on backend and full stack development principles. Although no major bugs were fixed during this period, the architectural refactor enhanced code clarity and consistency, laying a stronger foundation for future authentication features.