---
title: "exe.dev"
description: "Run Arc workflows in fast ephemeral VMs from exe.dev"
---

<Warning>
The exe.dev sandbox provider is **in progress** and not yet available for use. This page describes the planned integration. We'll update it when exe.dev support ships.
</Warning>

[exe.dev](https://exe.dev) provides fast ephemeral cloud VMs for Arc workflows. Each run gets a fresh VM with full machine-level isolation, connected via SSH.

## How it works

- Each run creates a new VM via the exe.dev management plane
- Agent tool calls (shell commands, file edits, grep, glob) execute over SSH inside the VM
- The working directory is `/home/exedev`
- VMs are destroyed automatically when the run finishes

## Configuration

```bash
arc run workflow.dot --sandbox exe
```

```toml title="run.toml"
[sandbox]
provider = "exe"
```

## Prerequisites

- SSH keys configured for exe.dev (added via the [exe.dev dashboard](https://exe.dev))

See [Environments](/execution/environments#exe) for additional details on how the exe.dev sandbox operates.