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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! https://www.youtube.com/watch?v=vbyYb9Yiu_k

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120 sats \ 2 replies \ @ken 8 Sep 2022

Is it possible to build an offline Bitcoin ATM without trust?

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125 sats \ 0 replies \ @om 9 Sep 2022

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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25 sats \ 0 replies \ @mrbrownstone 10 Sep 2022

Yes, but you also need to be running a server somewhere else.

Look at the LNURLPOS.

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