Microduck

This is extremely impressive, not just from a design and kinematics perspective, but because the entire 50Hz control loop runs locally on an RK3566 (not the RK3588 I first assumed), with the ONNX movement policies running on the robot itself. The repository includes the MuJoCo/PPO training code and Rust runtime, so every shipped behaviour can be retrained–which is quite something for a 25cm, 800g biped with fifteen motors that can walk, skate, grab things and get back up by itself. It is a completely superfluous thing to spend north of $500 on, and I have no idea what I would do with one or where I would find the time, but it presses all the “shut up and take my money” buttons–and if NVIDIA’s acquisition of Hugging Face goes through, I suppose we may have to call it the Jetson Donald or something…