Worked on enhancing file path handling within the spill database component of the percona/percona-server-mongodb repository, focusing on improving type safety and cross-platform reliability. Refactored the getSpillDbPath function to return a boost::filesystem::path object instead of a string, leveraging C++ and the Boost library to ensure safer and more maintainable file system interactions. This change reduced the risk of runtime errors related to path manipulation and laid the groundwork for future spill-management improvements. The work demonstrated attention to maintainability and robustness, emphasizing API refactoring, file handling best practices, and the use of modern C++ development techniques.