Installation

Termio runs on Apple silicon and Intel Macs from the same download. Installation is a normal drag-to-Applications — there’s no account to create and no license key to enter.

Download and install

1. Download the latest build from downloads.termio.sh. The link always serves the newest notarized release.
2. Open the .dmg and drag Termio into your Applications folder.
3. Launch it from Applications. Because the app is notarized by Apple, it opens without a Gatekeeper warning.

Install with Homebrew

Prefer the command line? Termio is a Homebrew cask:

brew install --cask termio-sh/tap/termio

This installs the same notarized build. Termio still updates itself through Sparkle, so brew upgrade leaves it alone unless you pass --greedy.

Staying up to date

Termio updates itself through Sparkle. It periodically checks the download server for a newer version and offers to install it in place. The check carries no account or device identifier — the server sees only an IP address and the version being asked about.

You can trigger a check any time from Termio ▸ Check for Updates.

Bring your own agents

Termio doesn’t bundle the coding agents — it hosts the ones you already have on your Mac. Install whichever CLIs you use (for example claude, codex, or amp) and make sure they’re on your PATH. Termio launches each one in a login shell, so anything your shell profile sets up will be available.

Once an agent is installed, it shows up as a launchable option when you start a session. The same is true of the agents on another machine — Termio looks for them there and installs its hooks on that box. See Devices.

The termio command (optional)

Termio ships a small command-line tool. Open Settings ▸ Devices ▸ This Mac and turn on Command-line tool to symlink termio onto your PATH. From then on termio in any directory opens it as a project, and termio sessions … lets your agents coordinate with each other. It’s entirely optional — see Session control & the CLI.

Next steps