A personal Firecracker VM in the cloud, included with Slicer Individual.
Use it for coding agents, background jobs, K3s experiments, or small services — without exposing your home lab or keeping a machine online.
Install and activate:
$ curl -sLS https://get.slicervm.com | sudo sh $ slicer activate --pat-only
Configure your environment:
$ export SLICER_URL=https://box.slicervm.com $ export SLICER_TOKEN_FILE=~/.slicer/gh-access-token
Check status:
$ slicer vm list $ slicer vm top
Open a shell:
$ slicer vm shellYou are now inside your private Firecracker VM. The disk persists between sessions.
Your box is a personal Firecracker microVM with a persistent disk, accessible via CLI. It's included with Slicer Individual as a companion to your self-hosted setup.
Firecracker microVMs boot in <1s with strong isolation and a full Linux kernel.
Use slicer vm shell, exec, cp, and forward.
Perfect sandbox for Claude Code, Amp, OpenCode, and other coding agents.
Your data persists between sessions. Install packages and they stay installed.
Run cron jobs, background tasks, and services without keeping your laptop on.
Your box comes at no extra cost with your Slicer Individual license.
You can run Slicer on your own hardware, or on bare-metal cloud like Hetzner Robot. The box is a convenient way to get started with Slicer, and it's included with your Slicer Individual at no extra cost.
There are myriad of companies offering "sandboxes" as a multi-tenant solution. Slicer is self-hosted first, completely private, and gives you real insights into operating Firecracker on your own hardware. The box is an add-on to your existing Slicer setup using the same slicer CLI and REST API that you're running locally.
Yes, you can use your box as a development environment with VScode with an SSH target, or exposed on the web via HTTPS.
Yes, you can use your box as a sandbox for a coding agent, so long as you do not violate the terms of service of your inference provider. That means not using a Claude Code Max plan with your Moltbot. Use API keys instead.
You can host public websites using inlets-pro, Ngrok, cloudflare tunnels, Tailscale funnel, or any other tunnelling solution.
You can forward TCP services and UNIX sockets to your local machine using slicer vm forward. This includes things like the built-in SSH server, or Docker/buildkit, if you have installed them.
Your box has 2 vCPU, 4GB of RAM, and 10GB of disk space.
Yes, run slicer vm delete VM_NAME to delete your box. To reset it, run slicer vm launch afterwards.
Yes, run slicer vm shutdown VM_NAME to shutdown your box. To get it back up again run slicer vm launch.
Your box will be shut down and deleted including its disk image.
No, a paid Slicer Individual license is required.
Do not use your box for any form of illegal or malicious activity, or any activity that violates our terms of service.
Included with Slicer Individual
No warranty. No guarantees. This service is provided as-is and may be modified, suspended, or discontinued at any time without notice. By using this service you agree to our Terms & Conditions.