---
title: Hardware overview
description: Enable cameras, audio, Bluetooth, GPUs, and other device hardware for WendyOS apps
---

## Hardware Access

WendyOS apps run in isolated containers by default. That means hardware such as cameras, microphones, speakers, Bluetooth adapters, and GPUs is not exposed to an app unless the app asks for it with an entitlement.

Entitlements are stored in your project's `wendy.json` file. The easiest way to add one is with the Wendy CLI:

```bash
wendy project entitlements add
```

<CliShot flow="entitlements" step="add" alt="The Wendy CLI interactive menu listing the available entitlements to add, each with a short description" />

Run the command with no arguments for an interactive menu, or pass the entitlement you already know you need:

```bash
wendy project entitlements add camera
wendy project entitlements add audio
wendy project entitlements add bluetooth
wendy project entitlements add gpu
```

After updating entitlements, deploy as usual:

```bash
wendy run
```

<CliShot flow="run" step="deploy" alt="The Wendy CLI deploying an app to a WendyOS device after updating entitlements" />

## Common Hardware

| Hardware | Entitlement | Use When |
|----------|-------------|----------|
| USB or CSI camera | `camera` | Capturing frames, streaming video, computer vision |
| Microphone | `audio` | Recording, voice commands, audio analysis |
| Speaker or audio output | `audio` | Playback, alerts, voice responses |
| Bluetooth adapter | `bluetooth` | BLE devices, Bluetooth sensors, paired accessories |
| NVIDIA GPU | `gpu` | CUDA, ML inference, accelerated computer vision (Jetson and x86 NVIDIA GPUs) |
| AMD GPU | `gpu` | ROCm compute on supported x86 Linux hosts |
| Web servers or network APIs | `network` | Serving HTTP, WebSockets, or accepting inbound connections |

<Callout type="info">
  For AMD GPU setup and a computation check, follow [Run PyTorch on an AMD GPU](../guides/tutorials/python/amd-rocm-pytorch/). See [GPU Access](../hardware/gpu/) for host and container requirements.
</Callout>

## Feature Guides

- [Camera Access](../hardware/camera/)
- [Microphone Access](../hardware/microphone/)
- [Speaker Access](../hardware/speakers/)
- [Bluetooth Access](../hardware/bluetooth/)
- [GPU Access](../hardware/gpu/)

## Quick Examples

### Camera App

```bash
wendy project entitlements add camera
```

This allows the app to access video capture devices such as `/dev/video0`.

### Microphone and Speaker App

```bash
wendy project entitlements add audio
```

This allows the app to use ALSA audio devices for recording and playback.

### Bluetooth App

```bash
wendy project entitlements add bluetooth
```

Bluetooth supports different modes. Use the interactive menu if you are not sure which mode your app needs.

### Camera with GPU Acceleration

```bash
wendy project entitlements add camera
wendy project entitlements add gpu
```

This is common for computer vision and ML inference workloads on NVIDIA Jetson devices.

## Learn More

For all entitlement types, options, and `wendy.json` examples, see [App Entitlements](../device/entitlements/).