In that case, you'd see if there're native Rust libraries for this and do that. The Rust in Tauri is native, not compiled to WASM. You can access the whole platform.

That said, most of the things you mentioned (iOS camera, permissions) don't have any Rust library to work with. So then it is more work because you need to use the native api via FFI. So yeah, I kinda misunderstood your original question. Possible, yes, but by far not as easy as with other solutions that just allow you to write the required functionality with Swift or Kotlin