Is anyone playing with this stuff for backup comms?

A few recent threads on it:

https://www.ar15.com/forums/Outdoors/Meshtastic-LORA-radio-anyone-play-with-it-/22-706587/

https://www.ar15.com/forums/general/Meshtastic-is-anyone-using-it-/5-2706007/

Check YouTube S2 underground, he has a few videos about deploying it for backup comms

It must be rapidly growing in popularity, whenever I look on etsy for it, they are sold out.  I'm just starting to watch some videos on it, got another ham at the club who's started tinkering with it, hoping to learn.

There are tons of youtube channels but I have watched the comms channels. He talks about the boards a bunch, and I just ordered the wisblock starter kit. I like them because they are a lower power draw, no soldering, plugs for solar panels and have a built in charge controller, and plugs for batteries. A bonus in my mind is they dont have screens that show texts, they are just a radio with blue tooth, charging etc. and they are very cheap.
https://store.rakwireless.com/products/wisblock-meshtastic-starter-kit