Would an updated and expanded Rust for C++ Programmers make sense as a companion to the book with references to concepts in the book along with low-level detail

Would an updated and expanded Rust for C++ Programmers make sense as a companion to the book with references to concepts in the book along with low-level details on data structures or implementation? It would nice to see that and Nomicon more closely related and fully up-to-date. It soulds like an informal "specification" of #[repr(c)] or #[repr(packed)] for common platforms would also be useful for FFI.