install wireguard
echo 'deb http://deb.debian.org/debian buster-backports main contrib non-free' > /etc/apt/sources.list.d/buster-backports.list
apt update
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
dpkg-reconfigure wireguard-dkms
wg show
errors
/usr/bin/wg-quick: line 32: resolvconf: command not found
ln -s /usr/bin/resolvectl /usr/local/bin/resolvconf
generate QR Code
apt install qrencode
qrencode -t ansiutf8 < device.conf