It runs locally, but will weights be available?

Of course yes. They will be inside the executable.

Maybe LoRa? Doesn't get more sovereign than that. As long you have people to connect with, that is.

There's already TOR, the problem you run in to is you need connectivity and visibility with the rest of the world on the clearnet. lora is even worse here.

LoRa is very short range and extremely bandwidth limited.

...and trivially jammable

Is it related to reticulum?

Reticulum can use it as one of several transport layers. LoRa is just layer 1 only