1. Choose the appropriate interoperability method (FFI, Platform Channels, Platform Views, Web Interop).
2. Set up the project according to the chosen method (e.g., using `package_ffi` template).
3. Implement the native code or configure the platform channel.
4. Generate Dart bindings or interfaces if necessary (e.g., using `ffigen` or Pigeon).
5. Integrate the native code or platform channel with the Flutter application.
6. Test the integration on different platforms and devices.
7. Optimize and refine the implementation based on testing results.