# Create a development build for a physical Android device locally

## Set up an Android device with a development build
<BuildEnvironmentSwitch />
<AndroidStudioEnvironmentInstructions />
<AndroidStudioInstructions />
## Running your app on an Android device
Step 1: 
### Install expo-dev-client
Run the following command in your project's root directory:
```sh
$ npx expo install expo-dev-client
```
Step 2: 
### Enable debugging over USB
Most Android devices can only install and run apps downloaded from Google Play, by default. You will need to enable USB Debugging on your device to install your app during development.
To enable USB debugging on your device, you will first need to enable the "Developer options" menu by going to **Settings** > **About phone** > **Software information** and then tapping the `Build number` row at the bottom seven times. You can then go back to **Settings** > **Developer options** to enable "USB debugging".
Step 3: 
### Plug in your device via USB
Plug in your Android device via USB to your computer.
Check that your device is properly connecting to ADB, the Android Debug Bridge, by running `adb devices` in your terminal. You should see your device listed with `device` listed next to it. For example:
```sh
$ adb devices
List of devices attached
8AHX0T32K	device
```
Step 4: 
### Run your app
Run the following from your terminal:
```sh
$ npx expo run:android
```
> This command runs a development server after building your app. You can skip running `npx expo start` on the next page.