During December 2024, Chris Hudson focused on backend development for the mozilla/fxa repository, specifically maintaining the API lifecycle for BasketService. He updated the user lookup API endpoint, aligning its URL path with the new versioning structure while ensuring the core email-based lookup functionality remained unchanged. This work involved careful change control and a targeted, traceable commit, as well as updating the downstream integration point to maintain compatibility and reduce migration risk. Using TypeScript and backend integration skills, Chris enhanced the maintainability and future-proofing of the service, demonstrating a methodical approach to cross-service interoperability and API version management.