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Tap-to-pay with CashuBTC ecash — for bitcoin. Fiat credit cards nailed the UX: fast, offline, works anywhere. I always wanted that for Bitcoin. Now it’s open-source. Private. Instant. Beep, done. In the video: two Cashu wallets for bitcoin. Left: @Minibits (PoS) Right: cashu.me (payer) Ecash is sent directly via NFC — no internet, no delay. Beep, boop. Ecash is a bearer token — the money lives on your device, not on a server. That’s why it pairs so well with NFC. Pick an amount, tap to send. No talking to servers. No syncing. Just push it over. The payment is pretty much instant. A PoS can accept ecash from any mint and receive payments via Lightning. Still early days, but we’re experimenting. Card-to-phone works, but phone-to-phone? That’s the real killer use case. Apple famously locks down the iPhone’s NFC chip — good monopolist. F*k that. I found a workaround. As long as one phone (ideally the PoS) is Android, you can send data both ways between iPhone and Android. (You don’t really own your iPhone.) Peace!

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P2P payment through NFC 🤯
calle's avatar calle
Tap-to-pay with CashuBTC ecash — for bitcoin. Fiat credit cards nailed the UX: fast, offline, works anywhere. I always wanted that for Bitcoin. Now it’s open-source. Private. Instant. Beep, done. In the video: two Cashu wallets for bitcoin. Left: @Minibits (PoS) Right: cashu.me (payer) Ecash is sent directly via NFC — no internet, no delay. Beep, boop. Ecash is a bearer token — the money lives on your device, not on a server. That’s why it pairs so well with NFC. Pick an amount, tap to send. No talking to servers. No syncing. Just push it over. The payment is pretty much instant. A PoS can accept ecash from any mint and receive payments via Lightning. Still early days, but we’re experimenting. Card-to-phone works, but phone-to-phone? That’s the real killer use case. Apple famously locks down the iPhone’s NFC chip — good monopolist. F*k that. I found a workaround. As long as one phone (ideally the PoS) is Android, you can send data both ways between iPhone and Android. (You don’t really own your iPhone.) Peace!
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Bitcoin person to person payments. That easy… Theres just no reason to have PNC, Bank of America, JP Morgan, Blackrock, US Gov’t, Chinese Gov’t, Paypal, Venmo, or any of those companies to take our money and pay somebody FOR US and take a cut EVERY FUCKING TIME when there ways now that we can just do it ourselves 🤷‍♂️ My wife and I just paid a tree service yesterday, and they charged us over $50 for literally no reason other than to cover the costs of Visa. Meanwhile if that company had just accepted Bitcoin payments, the transaction would’ve cost $0.03 🙄 Just feel like i’m getting tired of waiting for everyone to figure out how to help themselves and help society. Its like people only ever complain about money, but don’t take the time to look at it and see what exactly it is they hate, and how to change the shit they hate!
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When I think of cashu.me, my core vibrates with excitement, like when bitcoin finally clicked in the middle of the night. I find myself thinking of setting up a small business in my local area selling something below cost, but only if it is payable in btc, just to spread the understanding. npub12rv5lskctqxxs2c8rf2zlzc7xx3qpvzs3w4etgemauy9thegr43sf485vg is an artist, a renaissance man, and is laying down an important plank in the foundation of a future world of abundance ... Thank you npub12rv5lskctqxxs2c8rf2zlzc7xx3qpvzs3w4etgemauy9thegr43sf485vg ... nevent1qvzqqqqqqypzq5xeflpdskqvdq4swxj59793uvdzqzc9pzatjk3nhmcg2h0js8trqyt8wumn8ghj7etyv4hzumn0wd68ytnvv9hxgtcpzemhxue69uhks6tnwshxummnw3ezumrpdejz7qpqsmm5ulx6gptuhv9627kx72zyx494ha6sdqjv8mwrcmdkm8mrkq4s4mfm3u
Interesting! I used to think Cashus were a waste of time and effort because of the inherent rug risk. Now I think it is useful as PoC for the future when Arc tech matures. I can see myself holding a bearer Bitcoin that can be unilaterally exited to chain in a worst case scenario.
This is freaking awesome. The UX/UI improvements of this are massive. Question regarding offline payments, I don't see a way of guaranteeing no double spend. Are you taking the approach that trust between customer/provider is required in this scenario? IMO, that's a total valid point. The service provider would swap the tokens as soon as it can to guarantee full ownership, right?