# The Chip Wall Has a Software Door: How Open-Source AI Is Outflanking US Robotics Export Controls - Date: 2026-04-11 - Category: Robotics US export controls blocked NVIDIA chips from China. Then someone published the training stack on GitHub. NVIDIA's open-source physics engine Newton 1.0, freely available under Apache-2.0, is already powering official sim-to-real workflows for China's Unitree Robotics — a structural gap that no ch... ---