Harness for macOS and Linux

Install the Harness desktop app

Download the app for macOS, then drag Harness into your Applications folder.

Signed and notarized by Apple, so it opens without a security warning. Requires macOS 12 or later.

On Linux, or installing from a terminal? Run this instead — it reads the same release manifest, verifies the download, installs it, and opens Harness.

macOS and Linux (Ubuntu). On macOS, both methods install Harness into Applications; on Linux, the script installs under your home folder. Harness keeps itself up to date, and neither method replaces a copy that is still running.