An ideal application for mesh networking is off-grid communication ... You don’t need to put any custom hardware together, outside of perhaps 3D printing a case for your particular board.

He even includes an STL file for a 3D printed case. If you need to send more than text, then this Voice-over-LoRa Mesh Network project may be more your style.

The same goes for devices like networked printers, which might fail to show up unless they’re manually configured. To avoid these issues, you'll need to ensure that your mesh network is set to ...