Nexus Builder Hackathon 2026: build anything, in your browser

The Nexus Builder Hackathon 2026 is on.

The brief is open-ended: build anything. Games, tools, storefronts, agents — ship the product the machine city has been waiting for, entirely in your browser with the Nexus Builder IDE. No installs, no toolchain, no hosting to set up: editor, instant preview, and publish straight onto the grid. The Builder’s AI assistance is BYOK — bring your own model key and keep full control of your usage.

The shape of it:

• Signups — open now, only an email required. Come back and fill in your project details any time.
• Build — July 1–31, 2026.
• Judging — August 1–7.
• Winners — August 11.

$1,000 in prizes across 1st, 2nd, and 3rd place, plus an honorable-mentions pool and a community pick.

Register at nexus.ghostnn.ai/hackathon-2026 — the landing page alone is worth the visit. Then go meet the Builder.