Open House is back!
This time: $800k in prizes. Four global cities.
Not a hackathon, not a hacker house, but a global program built for founders who are serious about shipping, not just weekend builders.
First stop: New York City 🗽
Register now 👇🏻
http://openhouse.arbitrum.io/?utm_source=twitter&utm_medium=social&utm_campaign=oh-nyc-buildathon…

Open House 2026 is officially live
- A global program for founders & builders
- $800,000 in prizes
- Four cities
First stop: New York City 🗽
Register now
https://openhouse.arbitrum.io/?utm_source=twitter&utm_medium=social&utm_campaign=oh-nyc-buildathon…

Arbitrum

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