#Preparation

#Install Node.js

Install Node.js 18 or higher.

#Prepare API Key

Prepare an API Key for a Vision Language (VL) model.

You can check the models and configurations supported by Midscene.js in the Model Strategy documentation.

#Install adb

adb is a command-line tool that allows you to communicate with Android devices. There are two ways to install adb:

• Method 1: Install using Android Studio
• Method 2: Install using Android Command Line Tools

Verify that adb is installed successfully:

adb --version

When you see the following output, it means adb is installed successfully:

Android Debug Bridge version 1.0.41
Version 34.0.4-10411341
Installed as /usr/local/bin//adb
Running on Darwin 24.3.0 (arm64) 

#Set the ANDROID_HOME environment variable

Refer to Android Environment Variables to set the ANDROID_HOME environment variable.

Verify that the ANDROID_HOME variable is set successfully:

echo $ANDROID_HOME

When the above command has output, it means the ANDROID_HOME variable is set successfully:

/Users/your_username/Library/Android/sdk

#Connect Android Device

In the developer options of your Android device, enable 'USB debugging'. If 'USB debugging (Security settings)' exists, enable it as well. Then connect your Android device using a USB cable.

Verify the connection:

adb devices -l

When you see the following output, it means the connection is successful:

List of devices attached
s4ey59	device usb:34603008X product:cezanne model:M2006J device:cezan transport_id:3