During May 2025, Deadlinefen refactored the OpenDAL C++ bindings in the apache/opendal repository, focusing on foreign function interface (FFI) ownership and memory management. The work involved transitioning the C++ bindings to use raw pointers, introducing explicit lifetime management in the C++ layer, and modernizing the build system with CMake updates and improved source/header organization. By reorganizing and renaming internal C++ files, Deadlinefen established clearer ownership semantics and a more maintainable architecture for cross-language integration. This effort, leveraging C++, Rust, and CMake, laid a scalable foundation for broader C++ client adoption and safer interoperability between Rust and C++.