TinyCorp: Nvidia GPU on Apple Silicon over USB4 is ready to try (xcancel.com)

TinyCorp’s experimental stack now lets Apple Silicon Macs drive Nvidia GPUs over USB4 — ready for testers to try. The setup requires an ADT‑UT3G dock and any GeForce 30/40/50‑series card, disabling macOS System Integrity Protection (SIP), installing the userland driver at extra/usbgpu/tbgpu and the NVK compiler via Homebrew (brew install tinymesa). The project includes a smoke test you can run with the provided environment flags: DEBUG=2 NV_NAK=1 NV=1 python3 test/test_tiny.py TestTiny.test_plus. This is significant because it opens a practical (if experimental) path to use Nvidia hardware from Apple Silicon machines without full Thunderbolt/PCIe eGPU enclosures or official vendor support. For the AI/ML community it could enable on‑device model training or inference acceleration on Macs that otherwise rely on Apple GPUs or cloud resources. Important caveats: it’s an early community effort so expect stability, performance constrained by USB4 bandwidth and dock latency, and security tradeoffs from disabling SIP. Still, it provides a tangible prototype for broader cross‑platform GPU access and a base for further tooling, driver hardening and performance tuning.