ssh-keygen
sudo timedatectl set-timezone UTC
timedatectl
Edit your etc/rc.local
echo 7 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio7/direction
echo 1 > /sys/class/gpio/gpio7/value
https://raspberrypihq.com/use-a-push-button-with-raspberry-pi-gpio/
https://www.mbtechworks.com/projects/drive-an-lcd-16x2-display-with-raspberry-pi.html
https://www.instructables.com/How-to-Make-Raspberry-Pi-Webcam-Server-and-Stream-/
Set files /etc/motion and /etc/default as exemplified in this repo.