This is an awesome find. I tried the Cashu extension on LNBits when it was a thing and accidentally double spent like 30,000 sats. It wasn't a big deal. I was the only one using it and I knew I didn't have those sata anymore, but it taught me fractional reserve banking can happen by accident.
I still like cashu, mostly for educational purposes. My hypothesis is tools like brrr.gandalf.com can be used as tangible realia to teach people how to use Bitcoin. I think of it as a physical ChangeTip we used to use back in the day.
I made a YouTube video about the website yesterday, but I want to make sure I convey the danger of putting Bitcoin on mints. Again, I understand people can get rugged, even if it's unintentional. Do you think it's possible to use these notes for small amounts of Bitcoin(like a few pennies) to teach people the concepts of self custody from a pedogogical perspective?
Marc Kat / Marc
npub1ma…tf3g0
2026-02-19 15:20:02 CET
in reply to nevent1q…dvzs
Author Public Key
npub1marc26z8nh3xkj5rcx7ufkatvx6ueqhp5vfw9v5teq26z254renshtf3g0Published at
2026-02-19 15:20:02 CETEvent JSON
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