Running Raspberry Pi in Kiosk Mode

This tutorial will guide you on how to configure a Raspberry Pi to boot directly into a web page or application without a desktop environment.

Requirements

Create an lxsession Directory: If it doesn't already exist, create using the following command:
```
mkdir -p ~/.config/lxsession/LXDE-pi
```
Create an Autostart File: Create an autostart file (e.g., autostart) in the ~/.config/lxsession/LXDE-pi/ directory:
```
nano ~/.config/lxsession/LXDE-pi/autostart
```
Add Startup Programs: Add the programs you want to start automatically to this file. For example, in this case I'm opening a browser with application url, you can add a line like this:
```
@/usr/bin/firefox <your-application-url>
```
Replace <your-application-url> with the URL of your web application(http://localhost:3000/test).

Save and Exit: Save the file by pressing Ctrl + X, then Y, and finally Enter.
Configuring Crontab: Starting your server on boot
- Create a bash script named start-app.sh and include the following code:
```
#!/bin/bash

export DISPLAY=:1
cd /root/Desktop/nodeserver && node index.js
```
- Open crontab:
```
sudo nano /etc/crontab
```
  Include your start script here
Reboot: Reboot your Raspberry Pi to apply the changes:
```
sudo reboot
```

Your Raspberry Pi should now start with your application open in the Firefox browser.