Builders Weekend Tokyo’s Coolest 48-Hour Hackathon This event is a 48-hour hackathon to build cutting-edge AI products. From using Digital Garage’s and RevenueCat payment services, Lovable’s product-building environment, to VoiceOS (YC X25)’s voice AI platform, you will build a working prototype that PEOPLE ACTUALLY WANT as a team. Date 🗓️: March 20 (Fri) – March 22 (Sun), 2026 Venue 🏟️: Shibuya PARCO Building 18F (15-1 Udagawacho, Shibuya-ku, Tokyo) Organizer: Builders Weekend Co-organizer / Main Sponsor: Digital Garage Partners: Lovable, VoiceOS (YC X25), Supercell, RevenueCat Language 📕: English (Japanese friendly) Participation fee 💰: Free 🏆 Prizes & Benefits (planning) Voice OS: 1 year of free credits for a team selected by Lovable: Lovable credits (Pro Plan 1 - 100 credits, a $25 value) for product development (UI implementation with Lovable is recommended) ElevenLabs: ElevenLabs credits ($99 worth) for product development Additional benefits: xxx (to be updated once confirmed) ✅ Requirements Physical participation March 20–22 Interest in developing new products or software 👜 Necessary things Bring your own computer. We will provide light snacks and drinks for you.
