The Reticulum Network Stack is a more generic lora capable protocol. It is intended to run over almost any two way link so it's less bandwidth efficient per packet than Meshtastic but in return it gives you packet routing rather than flooding. It can be run over TCP, LoRa, WiFi, etc.

https://reticulum.network/start.html has an overview and how to connect.

There is a manual with a lot more information on how it works and the ideas behind it at https://reticulum.network/manual/ however it's quite large and not really a user friendly guide

If you just want to play with it https://reticulum.network/manual/software.html has a list of clients and software using it.