32 sats \ 3 replies \ @cryptocoin 8 Sep 2022 \ on: Fossa, build your own BTC ATM bitcoin
Here's a tutorial:
FOSSA - Cheap Offline Bitcoin ATM, Includes Bill Acceptor!
Is it possible to build an offline Bitcoin ATM without trust?
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Well, since atomic swap is not really possible in this case, the answer is no. But maybe a reasonable setup is possible.
I would think in this direction: the machine keeps private keys for multiple Liquid wallets with standard amounts of USDT. The user puts in $10, gets a key for 10 USDT and can sweep in on-chain.
To those who will say "but USDT is a shitcoin": try to make an exchanger without any way of knowing the rate since you're offline.
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Yes, but you also need to be running a server somewhere else.
Look at the LNURLPOS.
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