There are tons of references for the Kodi VPN Manager Zomboided, and if I understand correctly, it is for setting up a VPN client on your LE box so you can set up a tunnel to a (commercial) VPN server.
How about giving someone access to your LE box behind a firewall (i.e., at home behind ISP with just some 192.168.x.y private address) via VPN login? Can a VPN server be set up on an LE box?