I haven't tried it myself, but you should check out Bridgefy - and SDK for Bluetooth based mesh networking. There is also a chat app based on it, that the Hong Kong protesters use so that the Chinese government can't cut off their communication and trace it (OK, I seriously doubt they can't trace it - but it's supposed to be harder than regular internet)
Probably won't be a good fit for business though, but at least it can help the protesters...
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I haven't tried it myself, but you should check out Bridgefy - and SDK for Bluetooth based mesh networking. There is also a chat app based on it, that the Hong Kong protesters use so that the Chinese government can't cut off their communication and trace it (OK, I seriously doubt they can't trace it - but it's supposed to be harder than regular internet)
Probably won't be a good fit for business though, but at least it can help the protesters...