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tech 29 August 2026

Tether: Bringing iMessage and SMS to Linux

Tether, an innovative solution for Linux users aiming to integrate Apple’s Continuity features like iMessage and SMS. Learn how this project fills the gaps left by other tools.

Article inspired by the original source
Tether: iMessage, SMS, etc. on Linux ↗ zackbartel.com

Introduction

Apple's ecosystem is renowned for its seamless integration and smooth functionality across devices. Mac users enjoy features like iMessage, file sharing, and clipboard sync effortlessly. But what happens when you choose Linux as your primary operating system? This is where Tether steps in.

Why Tether?

When Zack Bartel switched to using Linux full-time, he quickly realized that he missed certain macOS features, particularly the ability to send and receive iMessages and SMS from his computer. Although KDE Connect exists for Android users, there wasn't an equivalent solution for iPhone users on Linux.

Tether's Features

Tether aims to fill this gap by offering key features such as clipboard sync, file transfer, and notification integration. One of the most sought-after features is OTP autofill, especially useful for security-conscious users.

Security First

From the outset, Tether was designed with security as a priority. The communication protocol between iOS and Linux uses mTLS to ensure that only secure connections are established. Regular security audits have maintained a high level of safety.

Challenges and Solutions

Integrating iMessage and SMS

Historically, accessing iMessage and SMS from Linux was thought impossible without using a Mac as a proxy. However, Bartel discovered tools like ancs4linux and BlueFerry, which opened the door to new possibilities. These tools utilize Bluetooth interfaces to interact with messages, making what was once inaccessible now possible.

Browser and Mail Extensions

To handle OTPs, Bartel developed extensions for Zen Browser and Betterbird. Although limited to these applications, these extensions automate the filling of OTP codes received by mail, simplifying the user experience.

Conclusion

Tether is not just a technical solution; it is a response to the needs of users who want to combine the best of both worlds: the freedom of Linux and the continuity of Apple. With ongoing improvements and a growing community, the future of Tether looks promising.

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