This is it. C++ has the huge advantage of being able to use the entire ecosystem of existing C++ and C libraries without any kind of bindings. When you'd need

This is it. C++ has the huge advantage of being able to use the entire ecosystem of existing C++ and C libraries without any kind of bindings. When you'd need to make your own Rust bindings or rely on some third-party project which may or may not be actively maintained, then C++ is more attractive.