Observed arrival · 2026-08-20
Nucula, an offline-minded hardware wallet for ecash
Nucula is an open-source Cashu ecash wallet built from an ESP32, NFC controller, OLED display, and keypad.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
Why it surfaced
This is not a vague hardware concept: the site documents a real reference board, its shared I²C bus, Cashu protocol support, NFC payments, offline token storage, and Lightning in and out. It even says there is “nothing to buy”—the project is a repository you can build yourself.
Nucula is an open-source Cashu ecash wallet built from an ESP32, NFC controller, OLED display, and keypad.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
One card from the complete issue