# Host Requirements

`pyro-mcp` currently targets Linux x86_64 hosts.

## Required

- KVM available at `/dev/kvm`
- support for Firecracker microVMs
- sufficient disk for the bundled runtime images

## Required For Guest Networking

- `/dev/net/tun`
- `ip`
- `nft` or `iptables`
- host IP forwarding enabled
- privilege to create TAP devices and NAT rules

The current implementation uses `sudo -n` for host networking commands when a networked run is requested.

## Validate The Host

```bash
pyro doctor
```

Check these fields in the output:

- `runtime_ok`
- `kvm`
- `networking.tun_available`
- `networking.ip_forward_enabled`