Edit /etc/rc.local
python /root/program.py &
DISPLAY=:1 chromium-browser --kiosk http://127.0.0.0.1:8000
python /root/program.py &
DISPLAY=:1 chromium-browser --kiosk https://clivern.com
python /root/program.py &
DISPLAY=:1 chrome --kiosk https://clivern.com
To enable full screen