Hi I am new to programing and was thinking of writing a P2P messaging app, i know java and php and have written a website's backend of a project we made in our college. What all technologies do I need to learn to make something like that. Thank you for reading.

What is a peer to peer Browser network?

A Browser that is able to share its resources, downloaded websites and offline cached assets, and to efficiently use local peers to save bandwidth.

In case you're interested: https://github.com/tholian-network/stealth