Acknowledgements

Built on the shoulders of giants.

Xtend uses the following open-source projects. Thank you to their authors and contributors.

BSD 3-Clause

Google's WebRTC implementation, packaged as a Swift Package by stasel. Powers the iPhone ↔ Mac peer connection (DTLS-SRTP media, SCTP data channels).

MIT License

Terminal emulator by Miguel de Icaza, used for the Mac-side PTY relay.

Apache 2.0

Apple's argument-parsing framework, used by build-tooling helpers inside the project.

MIT License

Web-based terminal emulator embedded in the iOS terminal view (rendered inside a WKWebView).

MIT License

JWT / JWS implementation used server-side to sign Xtend session tokens and verify Apple ID tokens during Sign-in-with-Apple flow.

MIT License

Node.js WebSocket server used by our signaling backend to shuttle WebRTC handshake messages between the iPhone and the Mac.

SIL Open Font License 1.1

Display and monospace fonts used on this website and in the app.

Trademarks: Xcode, iPhone, iPad, macOS, and iOS are trademarks of Apple Inc. Xtend is not affiliated with Apple Inc.