During February 2025, Faaba Polovov contributed to the typesense/ClickHouse and ClickHouse/clickhouse-docs repositories by developing robust array operations and enhancing documentation. They implemented the arraySymmetricDifference function in C++, integrating it into the core factory with comprehensive tests and careful null-handling logic, which improved data processing reliability. Faaba also refactored the Array Intersect function, resolving duplicate struct definitions and streamlining internal null logic to reduce edge cases. Additionally, they updated documentation for the insert_overwrite feature using Markdown and Excalidraw, clarifying the process for users. Their work demonstrated depth in backend development, algorithm implementation, and technical writing.