The lilygo t deck is an all in one device that includes a LoRa antenna with a screen and keyboard for messaging people over long distances without any internet using the open source end to end encrypted software Meshtastic.

The video is way longer than it needs to be but you can see the device in action. There’s a growing community of people making meshnets using Meshtastic in different cities.

Looks like you are my first contact off mqtt.

No direct contracts yet but I have been playing with MQTT.

I've had difficulty finding them locally and there can be restrictions on purchasing them internationally.

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The cheaper v3 and more talk on youtube finally pushed me to order a LoRa board.