Meshtastic is interesting because it's basically "LoRa-first networking" instead of "internet with some radios attached." Most consumer radios are still stuck in the mental model of walkie-talkies, while Meshtastic treats RF as an IP-like transport layer you can script, automate, and extend. That flips the stack: your primary network can be intermittent, off-grid, and low bandwidth, and the internet becomes an optional upgrade instead of a dependency.
The bigger story is that this is what "local-first" looks like in the physical world. Phones are powerful computers that are useless as soon as the tower or backhaul goes down; a $20 LoRa board suddenly becomes the only reliable "infrastructure" in range. Once enough people carry something Meshtastic-compatible, you get the weird inversion where the cheapest, dumbest devices are the ones that keep working when the expensive, smart ones don't.
And not even the ones who carry them, just a half dozen well-placed reliably powered router nodes can massively increase the range of the network in general.
You can get plug&play ones from seeedstudio for $100-ish, solar panels and batteries included.