Developed and delivered a user authentication system for the fungover/system2024 repository, establishing a secure onboarding workflow with GitHub sign-in. The work involved creating a dedicated login page, implementing frontend routing using React Router, and configuring a development server proxy to handle authentication requests securely. By integrating GitHub OAuth and designing the authentication flow, the developer set up the initial entry point for user sessions, enabling future expansion of access control features. The implementation utilized TypeScript, HTML, and CSS, with all changes linked to a specific commit for traceability. No major bugs were reported or fixed during this development period.