Worked on refactoring and enhancing the Mullvad Leta search engine integration within the searxng/searxng repository, adapting the system to recent API changes and introducing support for multiple search engines, specifically Google and Brave. The integration was designed with a disable-by-default approach to prevent stale results and ensure engines are only enabled when production-ready. This update focused on improving maintainability and configurability, laying a foundation for future enhancements in search capabilities. The work involved backend development and API integration, utilizing Python, YAML, and HTML to ensure the system remains robust, auditable, and adaptable to evolving requirements and future iterations.