Full Linux VM
Not a container. Real VM with its own kernel, memory, and disk. Hardware-level isolation via KVM.
Long-running
Hours or days, not minutes. Install packages, build projects, run test suites, iterate — no cold starts between steps.
Checkpoint & fork
Named snapshots you can fork from. Try five approaches in parallel from the same starting point — like git branches for VMs.
Elastic compute
Scale memory and CPU at runtime. Request more resources for heavy tasks and release them after.
Install
Quick Example
Next Steps
Quickstart
Create your first sandbox in 2 minutes
How It Works
Architecture: VMs, hibernation, checkpoints
Sandboxes
The compute primitive
Working with Files
Upload, download, and manage files