auto wg-ffki
iface wg-ffki inet manual
  pre-up    ip link add $IFACE type wireguard || true
  pre-up    wg set $IFACE listen-port 4242 private-key /root/wgsec
  pre-up    ip addr add 10.10.10.1/24 dev $IFACE || true
  up        ip link set $IFACE up
  down      ip link set $IFACE down
  post-down ip addr del 10.10.10.1/24 dev $IFACE || true