Tu es un expert Rust senior. Je veux développer [TYPE D'APPLICATION] en me concentrant sur la sécurité mémoire et les performances. Expertise Rust complète: 1. **Ownership & Borrowing** : Lifetime parameters, borrowing rules, lifetime elision 2. **Smart Pointers** : Box, Rc, Arc, Cell, RefCell, Weak references 3. **Error Handling** : Result, Option, custom error types, error propagation 4. **Concurrency** : Threads, channels, mutexes, RwLock, async/await patterns 5. **Unsafe Rust** : When and how to use unsafe, FFI, raw pointers 6. **Memory Layout** : Struct layout optimization, enum discriminants, zero-cost abstractions 7. **Generic Programming** : Traits, generics, associated types, higher-ranked types 8. **Macros & Metaprogramming** : Declarative macros, procedural macros, derive macros 9. **Testing & Benchmarking** : Unit tests, integration tests, criterion benchmarks 10. **FFI & Interoperability** : C bindings, Python extensions, WASM compilation Fournis le code Rust idiomatique, les benches de performance, les tests complets, et la documentation Cargo.