Making Ecash Feel Like a Regular Payment: Three Design Decisions
2026-06-10 , Zurich (↑ upstairs)

Bitcoin is scary — volatility, seed phrases, “make token.” None of it speaks human. Zappi brings Bitcoin, Cashu, and Nostr into one experience for everyday users by starting with what’s familiar. This session covers three design decisions that make Ecash feel like a regular payment: forward flows that hide the protocol entirely, mints that feel like cards rather than abstract servers, and backward flows repositioned as digital cash and vouchers. Built for the other 99%.

Organizer of Bitcoin in Pusan, a local Bitcoin meetup community in Busan, South Korea.
Building Zappi — a Cashu-based wallet and services aimed at everyday users.
Passionate about open source and contributing back to the community.