install wireguard
apt install wireguard
vim /etc/wireguard/wg0.conf
systemctl enable wg-quick@wg0
systemctl start wg-quick@wg0
test wireguard
modprobe wireguard
echo "wireguard" >> /etc/modules-load.d/modules.conf
wg show
generate QR Code
apt install qrencode
qrencode -t ansiutf8 < device.conf