Grant Lanham refactored the Mullvad Leta search engine integration in the searxng/searxng repository, adapting it to recent API changes and introducing support for multiple search engines, specifically Google and Brave. He implemented a disable-by-default configuration for these engines to prevent stale results and ensure safe, auditable activation when ready for production. Using Python, YAML, and HTML, Grant focused on backend development and API integration, enhancing the maintainability and configurability of the search engine framework. This work established a robust foundation for future enhancements, enabling more flexible search capabilities and supporting rapid iteration as requirements evolve.