During November 2025, Wuchtl focused on backend improvements for the FOSSBilling/FOSSBilling repository, addressing a targeted issue in the registrar domain experience. He implemented a PHP-based solution that restricts the Finder in registrarGetAvailable to only process top-level PHP files, ensuring that only relevant files appear under the 'New domain registrar' tab. This adjustment reduced unnecessary file listings, resulting in faster user interface interactions and improved maintainability of the registrar configuration logic. By narrowing the scope of file discovery, Wuchtl enhanced admin efficiency and accuracy, demonstrating a thoughtful approach to backend development and codebase clarity using PHP and related technologies.