#!/bin/sh

cat >&2 <<_EOF

The wireguard-dkms and wireguard-tools packages are empty placeholder
packages with no functionality, since WireGuard is, at the time of
writing, still pre-release software. In order to install WireGuard,
please install the official PPA:

   $ sudo add-apt-repository ppa:wireguard/wireguard
   $ sudo apt update
   $ sudo apt install wireguard-dkms wireguard-tools

For more information, you may visit the installation website:
  <https://www.wireguard.io/install/>

_EOF
