Setup minimal kiosk mode

sudo apt-get install --no-install-recommends xserver-xorg

sudo apt-get install --no-install-recommends xinit

sudo apt-get install --no-install-recommends x11-xserver-utils

sudo apt-get install chromium-browser

sudo apt-get install matchbox-window-manager xautomation unclutter

sudo apt-get install fonts-noto-color-emoji

#create dedicated kiosk user

adduser kiosk
usermod -aG sudo kiosk

#create start kiosk script, /home/kiosk/kiosk.sh
touch /home/kiosk/kiosk.sh
chown kiosk:kiosk /home/kiosk/kiosk.sh
chmod ug+x /home/kiosk.sh

#!/bin/sh
xset -dpms     # disable DPMS (Energy Star) features.
xset s off     # disable screen saver
xset s noblank # don't blank the video device
matchbox-window-manager -use_titlebar no &
unclutter &    # hide X mouse cursor unless mouse activated
chromium-browser --display=:0 --kiosk --incognito --window-position=0,0 https://reelyactive.github.io/diy/pi-kiosk/

#enable autologin with sudo raspi-config
#must login as kiosk,
# enabling autologin acts on currently logged in user
1.System options > B2 Console/Autologin

#call kiosk script from .bashrc
#add as last line
xinit /home/kiosk/kiosk.sh -- vt$(fgconsole)

#remove kiosk from sudo
gpasswd -d kiosk sudo

reboot