The docs/ folder contains protocol documentation for lwwire.

The src/ folder contains a reference protocol implementation. This is NOT
intended for casual users. It is meant to serve as an illustration of how
the protocol can be implemented and serves as a means to test features. The
reference implementation does not contain a fancy GUI, configuration file
handler, or even serial or TCP port handling. It simply operates the
protocol on stdin and stdout and prints diagnostics to stderr. A tool like
socat can be used to link it to a TCP port. Similar tools might be used to
link it to a serial port.