Raspberry PI OS Lite configure kiosk - shows multiple web pages as chrome tabs and rotates between them

kiosk-install.sh

sudo apt-get update
sudo apt-get -y upgrade
sudo apt-get install --no-install-recommends -y xserver-xorg xinit x11-xserver-utils 
sudo apt-get install -y chromium-browser matchbox-window-manager xautomation unclutter xdotool

sudo tee /boot/kiosk.sh <<EOF
#!/bin/sh
xset -dpms     # disable DPMS (Energy Star) features.
xset s off     # disable screen saver
xset s noblank # don't blank the video device
setxkbmap -option "terminate:ctrl_alt_bksp"   

matchbox-window-manager -use_titlebar no &
unclutter -idle 0.5 &    # hide X mouse cursor unless mouse activated

# Disable crash status in chromium
sed -i 's/"exited_cleanly":false/"exited_cleanly":true/' /home/pi/.config/chromium/Default/Preferences
sed -i 's/"exit_type":"Crashed"/"exit_type":"Normal"/' /home/pi/.config/chromium/Default/Preferences

URLS="https://google.com https://github.com/trending"
chromium-browser \$URLS \\
  --enable-features=OverlayScrollbar,OverlayScrollbarFlashAfterAnyScrollUpdate,OverlayScrollbarFlashWhenMouseEnter \\
  --window-size=1920,1080 \\
  --window-position=0,0 \\
  --start-fullscreen \\
  --kiosk \\
  --incognito \\
  --noerrdialogs \\
  --disable-translate \\
  --no-first-run \\
  --fast \\
  --fast-start \\
  --disable-infobars \\
  --disable-features=TranslateUI \\
  --disk-cache-dir=/dev/null \\
  --overscroll-history-navigation=0 \\
  --check-for-update-interval=31536000 \\
  --disable-pinch &

# Start the kiosk loop. This keystroke changes the Chromium tab
# To have just anti-idle, use this line instead:
# xdotool keydown ctrl; xdotool keyup ctrl;
# Otherwise, the ctrl+Tab is designed to switch tabs in Chrome
while (true)
 do
  xdotool keydown ctrl+Tab; xdotool keyup ctrl+Tab;
  sleep 15
done
EOF

tee /home/pi/.xinitrc<<EOF
sh /boot/kiosk.sh
EOF

tee /home/pi/.bashrc<<EOF
if [ -z "\$SSH_CLIENT" ] || [ -z "\$SSH_TTY" ]; then
    startx
fi
EOF

Running offline with local files

• Disable wait for network at boot
• Place files to /boot

Change URLS="file:///1.html"

Enable accelerated video (Raspberry PI 4)

https://blog.adafruit.com/2020/10/09/raspberry-pi-4-hardware-accelerated-video-decoding-in-chromium-piday/

Watchdog to automatically restart Raspberry PI if it became unresponsive https://diode.io/raspberry%20pi/running-forever-with-the-raspberry-pi-hardware-watchdog-20202/