---
title: "Let an AI agent work on your Linux or Mac with Comma · Comma Docs"
description: "Attach a Linux or macOS machine for agents to work on."
url: https://comma.surf/docs/salix/devices
language: en
---

Salix

# Devices

A device is a machine attached to Salix. Attach any Linux or macOS machine, and your agents can run commands and open files on it.

## How Comma uses devices

When you connect your Mac to Comma, the Mac app attaches it to Salix as a device. That is how Comma finds a file on your Mac, or updates one.

## Access starts read-only

When you attach a machine, agents get read-only access to it. They can do more only after you allow it. You can revoke a device at any time, and agents then lose access to it.

## Devices and cloud VMs

An agent does not need a device to do its work. When it needs a computer and no device is attached, Salix wakes a cloud VM with persistent storage for the agent.

Salix never moves work from one machine to another on its own. If a device is offline, a request to it fails with an error, and the agent can try again when the device is back.

## Agent runtimes on a device

A device can also run an external agent runtime, such as Codex or Claude Code. See [Agent runtimes](https://comma.surf/docs/salix/agent-runtimes).