Networking with pure Lua, and no net library?

This question is sort of pointless as the net library exists, but I’ve been wondering if it’s possible to send data from the client to the server or vice versa with pure Lua functions. If so, how? I’m curious.

With a sockets module. And both would need to have it. I mean it’s totally pointless.

Send a keypress to the server and broadcast it to the other client. Easier than messing with sockets.

I really don’t understand what people don’t like about the net library. It’s so incredibly easy to use.

And its more secure than using SendLua. If you use on it time, it will be incredibly easy to use and secure.