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RE: Steem Airgap Hardware Wallet (@Utopian-IO)
I was thinking that something of this nature would make a pretty robust POS system for merchants / stores to interact effectively with their customers.
rPi w/ a touchscreen and QR codes -- and a complimentary smartphone app that can scan and broadcast.
Very compelling idea.
I'd give my landlady a Pi as well as a Steem account if this could be done. I hate handing over handy fiat for rent.