Over a two-month period, this developer enhanced the Tencent/libpag and Tencent/tgfx repositories by focusing on memory management, thread safety, and cross-platform compatibility. They addressed memory leaks in animation handling and SVG DOM destruction, refactored UI components for improved state management, and optimized rendering synchronization using C++ and CMake. Their work included implementing iterative destruction for large SVG trees and ensuring thread-safe initialization of the NativeDisplayLink pipeline on OHOS with std::call_once. By integrating these solutions, the developer improved reliability, performance, and maintainability across iOS, macOS, and OHOS platforms, demonstrating strong depth in native application and multithreaded development.