During December 2025, Phy1729 enhanced dependency unwrapping in the fastapi/fastapi repository, focusing on robust support for wrapped, synchronous, and asynchronous dependencies. Using Python and leveraging FastAPI’s backend development patterns, Phy1729 implemented logic to correctly resolve dependencies regardless of their callable type, addressing compatibility issues for users employing wrappers. Comprehensive tests were added to validate the new unwrapping behavior, ensuring correctness across various dependency scenarios. This work improved the maintainability and reliability of FastAPI’s dependency resolution system, reducing edge-case failures and supporting more flexible wrapper-based patterns. The contribution demonstrated depth in backend engineering and thorough testing practices.