Nebius.Build SF: Robotics Hackathon is a focused one-day in-person builder event for AI engineers, robotics developers and startup teams. Held at SHACK15 during GTC weekend, the hackathon features hands-on workshops (agent workflows, robotics programming), mentor office hours, demo submissions and judging, and an awards close. Attendees work individually or in teams on physical AI and agentic systems with access to infrastructure and mentors; the format prioritizes demoable, production-minded projects and rapid iteration. Registration is free but required; it targets founders, students, researchers and engineers building autonomous systems.