Bitcoin Connect helped to integrate lightning payments quickly.

Demo: https://www.kartapio.com/venues/npub1a4rwgztee33xy060fjzkyfdtqlqz56mawqde6qjcx56zqhjsmzvsuj8vyk

Inspiration Bitcoin and Nostr solved money and identity, the base layers of our society, but commerce as a second layer is still mostly captured by the State and corporate interest. Local businesses lose up to 40% of their revenues to intermediaries like centralized delivery app (12-30% take rate), banks (4% MDR) and the State (5-15% taxes).

What it does Kartapio allows merchants to publish their products to Nostr and receive orders and payments from any Nostr client that implements NIP-15.

How it's built We built it using Typescript/Svelte, the NDK library for Nostr integration, bitcoinConnect for NWC integration and Shadcn as our frontend component library. The project is a static page hosted on Cloudflare.

What's next for Kartapio Allow customers to create/sign in to their own Nostr accounts in order to write/read reviews and discover new venues based on their web-of-trust. Support stablecoins (especially on Bitcoin) as an alternative payment method for broader adoption Generate product events from a photo of the menu using LLM to make merchant onboarding easier Monetization features like: freemium relays, featured venues, fiat payment processing, integration with delivery partners and premium productivity features.

Built With bitcoinconnect ndk shadcn svelte