Update: the rebuilt FiberNuts wallet is live
Gm CKB community,
A quick update on the application-style wallet discussed above.
The rebuilt wallet is now live at fibernuts.xyz and connected to the public testnet reference mint at mint.fibernuts.xyz.
This was more than a visual refresh. The wallet now:
- Uses ordinary actions: Add cash, Pay, Request, and Cash out.
- Keeps the active mint, RUSD unit, network, reachability, and custodial boundary visible.
- Supports NUT-18 payment requests through QR, copy, paste, and camera scanning, with a review step before any proofs are changed.
- Does not count an incoming token as settled until the issuing mint swaps it for fresh proofs.
- Persists pending operations and recovery data so a refresh does not silently lose an outgoing token, unresolved receive, Add cash quote, or Cash out attempt.
- Keeps bearer tokens hidden by default and rejects wrong-mint, wrong-unit, spent, or malformed payments before changing the balance.
The current build passes 24 focused unit tests and 18 browser scenarios covering mobile, tablet, desktop, keyboard use, settlement, rejection, and recovery states. Those edge-case tests use a deterministic synthetic mint and are not being presented as live Fiber evidence. A recorded two-device walkthrough against the public testnet deployment is the next live verification step.
The trust model has not changed: the mint remains custodial, browser storage is not a secure backup, and Add cash or Cash out currently requires a funded RUSD Fiber node and routable channel.
Building this also clarified that a better wallet is still only the foundation. The leading next application is a small community pop-up economy: attendees buy items or tip contributors, vendors secure the received ecash, and RUSD enters or leaves through Fiber.
Fiber at the edges, Cashu for the many lightweight payments in between.
Would that event or community-market experience demonstrate Cashu + Fiber more clearly than a standalone wallet demo?