# Building a platform

HareBox is designed to sit behind your product, with one sandbox per end user.

| You need | Use |
|---|---|
| One VM per user | [Sandbox per user](../guides/sandbox-per-user.html) |
| Fast starts | [Templates](templates.html) |
| Agents for your users | [Agents in your product](agents.html) |
| Chargeback | `harebox usage --all --group-by label` |
| Spend limits per user | A budget with `label:tenant=ID` |