Dart & Flutter FFI Systems Engineering

Treat FFI as a systems boundary, not ordinary Dart API usage. Compilation, symbol resolution, or one successful call does not prove correctness. Every native boundary must make these contracts explicit:

ABI
ownership
lifetime
threading
error model
packaging
performance

Prefer this architecture:

application/domain
      ↓
safe Dart wrapper
      ↓
generated/raw FFI bindings
      ↓