Prerequisites:
- openvpn3-linux (https://github.com/OpenVPN/openvpn3-linux)
- yad (https://github.com/v1cont/yad)
To start the applet, just launch the following script: ./src/openvpn3applet.sh
See ./src/openvpn3applet.sh -h for more information