Networking isn’t my thing but could this be used to create a VPN in order to federate a bunch of servers? I’m thinking something like Tilde servers that would b

Networking isn’t my thing but could this be used to create a VPN in order to federate a bunch of servers? I’m thinking something like Tilde servers that would benefit from running on their own subnet along with other trusted servers so they could provide services similar to the way they worked on the early net e.g. email, news, finger, etc? Might be a stupid question and I could be way off base but worth asking.