Turn screenshots into plans.
AI · Everyday life · 2026
iOS · Android12 languages
- Vue 3
- Vite
- Capacitor
- NestJS
- and 4 more
Beyond Blockchain
Pioneer in blockchain development since 2014. Building beyond it with AI.
Bitcoin tools, AI apps and guides to life in Japan, made to be intuitive, easy and pleasing to use. Built and run by Quentin de Beauchesne in Tokyo.
Products
Create and trade on Bitcoin.
Bitcoin · Digital assets · 2024
WebEN · JA · ZH
- Vue 3
- Vite
- Tailwind CSS
- Three.js
- and 7 more
Find your next festival in Japan.
Discovery · Music & culture · 2026
For JapanWebEN · JA
- Vue 3
- Vite
- Capacitor
- MapLibre GL
- and 5 more
Work in progress
Side projects on the way: one already online, the others soon.
BetaA Japanese notebook built around friends and conversations.
AI · Language learning · 2026
Coming soonA fun Bitcoin-themed party brawler.
Game · Bitcoin · 2026
A 3D world for your projects and coding agents.
Tools · Productivity · 2026
Other projects
Crypto side projects: a French-speaking forum since 2014, a club for CryptoArt on Bitcoin, and NFT collections for a Japanese artist.
NFT collections for ONI-GIRI, a Japanese Rare Pepe artist.
Smart contracts and community · 2022
How I build
The aim: apps that feel intuitive, easy and pleasing to use. One Vue codebase for web, iOS and Android, with NestJS behind it, and several languages from day one. I build with AI coding agents (Claude Code, Codex and Grok), and I review every change myself.
Used in 7 projects
Vue 3
JavaScript framework for building interfaces
IkitaiProduct · Since 2026
FairmintsProduct · Since 2024
FestCompassProduct · Since 2026
TapLogProduct · Since 2026- GengoFriendsExperiment · Since 2026
- ShigoShimaExperiment · Since 2026
The Nakamotos ClubOther project · Since 2022
Earlier
Since 2016
- 2017–2026
Ownest Co-founder, CEO for its last three years
A SaaS built on NFT-based tracking. It grew to 20 people, with clients including Saint Laurent, Orange, Carrefour and Bouygues, and a three-year Cdiscount contract covering 2.5 million large parcels a year.
- 2016–2017
LedgysCo-founder and CEO
Ethereum-based data sharing through decentralised marketplaces.