# nutlet 🤏🏻 [Cashu](https://cashu.space/) web wallet. what? > Cashu is a free and open-source Chaumian ecash protocol built for Bitcoin. A digital bearer token that is stored on a user's device, very similar to physical cash. The Cashu protocol allows you to build applications such as wallets or voucher systems. Transactions are instant and nearly free. why? > I want to build something in the Bitcoin space. I'm inspired by what's [callebtc](https://github.com/callebtc) doing and incredibly excited about the potential of ecash on Bitcoin. I wan't to learn first-hand about how it all works. goals? > Modern minimal interface, inspired by Strike & Cash App. Obsessive focus on UX. Support for advanced features, seamlessly integrated without overwhelming users. platform? > For now, this will be a regular mobile-sized PWA build in Nuxt 3. May throw in Tauri in the mix. If it gains traction, I might port it to Expo / React Native. dummy preview 👇🏻 ## Setup ```bash # install dependencies pnpm install # start development server pnpm dev # build for production pnpm generate ```