---
title: Grabette Fleet
emoji: 🌍
colorFrom: yellow
colorTo: indigo
sdk: docker
app_port: 7860
pinned: false
hf_oauth: true
hf_oauth_expiration_minutes: 480
---

# Grabette fleet — operator dashboard + command broker

A **Docker** HuggingFace Space (runs fine on the **free CPU tier**). It is the
operator dashboard *and* an in-memory command broker for one user's fleet.

```
operator (this Space, HF login) ──queue command──▶ in-memory broker ◀──short-poll── device (Pi)
                                ◀──device status──                   (Bearer hf_token)
device captured data ──────────────────────────────────────────────▶ HF dataset (durable)
```

- **Operator** signs in with HuggingFace (native Space OAuth) and controls only
  their own devices.
- **Devices** connect outbound with `Authorization: Bearer <hf_token>`; the Space
  resolves the owner via `whoami` and groups devices by HF identity.
- **Transport** is short-polling — which also keeps the free Space awake (sleep
  is timed from the last request).

State is in-memory: a restart drops it and devices re-register on their next
poll. Durable data (device history, captured datasets) lives in HF datasets, not
here.

## Duplicate for your own fleet

One Space = one owner = one fleet. Click **⋮ → Duplicate this Space** to run your
own — `hf_oauth` is auto-provisioned, so there's nothing to configure. Then point
your devices at it with `GRABETTE_RELAY_URL=https://<you>-grabette-fleet.hf.space`.

Devices are run with `device_app.py` from the grabette_connector project.