Right now, only the wrist exists in hardware, its a parallel two-motor mechanism with a working PID loop. The download includes the MCU firmware (STM32F4), M-CAD (STEP), E-CAD (KiCad project), and a GUI program (Python). None of this should be considered fully working in any form. If you're interested, feel free to look around and see what's already there, but don't expect anything polished.