# TDLib iOS Linking Status

Local toolchain status:

- Xcode 26.5 is installed at `/Applications/Xcode.app`.
- iOS 26.5 simulator runtime is installed.
- `scripts/check-ios-prereqs.sh` passes.
- `scripts/run-ios-simulator-app.sh` launches the fake-backed SwiftUI shell in iOS Simulator.

Current real TDLib blocker:

```bash
DEVELOPER_DIR=/Applications/Xcode.app/Contents/Developer cargo build -p tele-ios-ffi --target aarch64-apple-ios-sim --release
```

Observed failure:

```text
[Your OS or architecture may be unsupported.] Failed to download file: Please try using the `pkg-config` or `local-tdlib` features.
404 Not Found
https://github.com/FedericoBruzzone/tdlib-rs/releases/download/v1.2.0/tdlib-1.8.29-ios-aarch64.zip
```

Interpretation:

- Rust, Swift, Xcode, and the iOS simulator runtime are working.
- The fake-backed iOS app shell can be built, installed, launched, and rendered.
- Real TDLib iOS linking is blocked because `tdlib-rs` 1.2.0 does not publish the iOS static library artifact requested by its `download-tdlib` build script.

Next viable paths:

1. Build TDLib for `iphoneos` and `iphonesimulator` locally and switch the Rust dependency path to `local-tdlib` or `pkg-config`.
2. Add a fake-only `tele-ios-ffi` build feature that avoids linking TDLib for simulator UI work, while keeping real TDLib behind a separate feature.
3. Replace the `tdlib-rs` packaging path for iOS with a lower-level C ABI/XCFramework if UniFFI plus `tdlib-rs` cannot link cleanly on device.