What is Wireguard?
WireGuard is a communication protocol and free and open-source software that implements encrypted virtual private networks (VPNs), and was designed with the goals of ease of use, high speed performance, and low attack surface.
Wireguard network setup tool
wgsetup is just a shell script, you can download it at the following link: https://at.magma-soft.at/darcs/wgsetup/wgsetup.
Copy it to a location of your liking, e.g.
/usr/local/bin and make it executable.
wgsetup is an administration script and you will be run as root in almost any use case.