Developed a LibUV-based backend for TCPStore within the PaddlePaddle/Paddle repository, focusing on enhancing distributed I/O portability across platforms. The work involved integrating LibUV as a submodule and implementing cross-platform build support using CMake, enabling seamless deployment and continuous integration on Windows, Linux, and macOS. Leveraging expertise in C++ and distributed systems, the developer designed the backend to be optionally enabled, allowing teams to adopt the new I/O path as needed. This feature established a foundation for improved performance and broader platform compatibility in distributed store operations, addressing the need for flexible and robust networking solutions in the PaddlePaddle ecosystem.