It's better a secondary pin to show just certain informations, something who is partially true and anyway plausible. No one can tell if you hide something aside.

AFAIK for smartphones no one have coded it so far, we have something for GNU/Linux desktops over Fuse. I've talked in theory, because it's perfectly possible but apparently no one have implemented that so far

Actually the better duress pin is fully deniable encryption: you set certain policies on data, you insert a pin and only the data tied to that pin are visible. Those who see can't tell if there is something else hidden. This way you're compliant and yet still private.

Radicle is the most reasonable choice, actually all FLOSS projects should be on Radicle (or any equivalently P2P system). Unfortunately most Devs fails to understand themselves the value of private property for digital things. They understand for a car or a home, but not for digital stuff. Similarly most do not really care about free socials, not understanding the effect of censorship on public thinking.

You need iron for LoRa, so far I know no LoRa handheld device

question: would you go to a tense protest with a spyware device in your pocket?

Honestly, bitchat's functionality aside, I see it more as a tool for voluntary CIA lackeys during colour revolutions rather than a tool for free communication. I'd see LoRa as such due to its geographical range, even if its performance is limited, but I really don't see any realistic use for bitchat outside of what might interest the CIA for carrying out coups in other people's countries...

The point of issuing new notes and withdrawing the old ones is to stop people from stockpiling large amounts of cash on their own. To be honest, I couldn't care less about the design...

I tell every time, but those who use smartphone simply do not care...

The value of a currency is the value of the market using this currency, that's what most fails to realize