sudo apt-get update
sudo apt-get install lightdm
sudo reboot
sudo apt-get install x11vnc
x11vnc -storepasswd -- set password for vnc
sudo cp ~/.vnc/passwd /etc/vnc.passwd
sudo nano /lib/systemd/system/x11vnc.service -- copy content of x11vnc.service from this repo
systemctl daemon-reload
systemctl enable x11vnc.service
systemctl start x11vnc.service
systemctl status x11vnc.service
disable screenlock