Hugging Face's Pollen Robotics open-sourced Microduck, a 25cm, 800g mini bipedal robot. Powered by Rockchip RK3566, it executes 15 servos at 50Hz and performs actions like walking, rolling, and object manipulation via reinforcement learning. The project features Sim2Real transfer using PPO and domain randomization, with an ONNX model deployed on real hardware. Built in Rust, its service-oriented architecture ensures safety and seamless OTA updates with automatic rollback. This platform offers a complete pipeline from simulation to deployment for embodied intelligence research.