RNode
unsigned.io
An RNode is an open, free and unrestricted digital radio transceiver, that is easy to replicate across space and time. It enables anyone to send and receive any kind of data over both short and very long distances.

This is a cool project where anyone can make an RNode that can be used for transmission of digital radio signals. Each RNode contains the information required to create additional RNodes.

This really hits the cyberpunk niche beyond the aesthetic.