If an app only connects over BT + WiFi, how often is someone really going to use that? I mean you have to be within shouting distanc

i use Briar without internet. I've found it after returning from a place where people had phones but there was neither WiFi nor a decent cellular coverage. Briar is perfect for asynchronous messaging and file sharing in a familiar interface when you're in a group and away from cities.

Also this is vibecoded, which is undesireable in general, but especially so in any kind of secure setting.

where did you find that information? I must have missed that while reading their page.