During December 2025, Eloi-Z developed a custom authentication route for the jlowin/fastmcp repository, enabling seamless Supabase integration and supporting flexible authentication workflows. The work focused on backend development using Python, with careful attention to API integration and route-level security. Eloi-Z established a reusable pattern for external authentication providers, laying groundwork for future extensibility. The implementation improved team collaboration through co-authored commits and maintained high code hygiene standards. Although no bugs were fixed during this period, the new feature reduced integration friction for teams adopting Supabase and enhanced the project’s authentication capabilities, demonstrating depth in backend and authentication engineering.