Worked on enhancing the registrar domain experience in the FOSSBilling repository by implementing a targeted bug fix using PHP and back end development skills. The solution involved modifying the registrarGetAvailable logic to restrict the Finder to only process top-level PHP files, which streamlined the files displayed under the 'New domain registrar' tab. This adjustment reduced irrelevant file listings, resulting in faster user interface interactions and improved maintainability of the codebase. The change was well-scoped and traceable, focusing on business value by increasing admin efficiency and accuracy during registrar setup, and demonstrated careful attention to both user experience and code quality.