They must be musculoskeletal, safe, and compliant. Robots with high-inertia designs are dangerous, and generally heavier. Humans evolved to have a great musculoskeletal system. Anthroids will have them too.
They must be customizable to take on any anthropomorphic appearance. Too many humanoid robots are boring, and lack soul and character. Anthroids will be unique and infinitely varied in appearance, personality and identity. Nothing is off the table here - from classic humanoid robot designs, to furry & scalie characters - all will be made possible.
Everything shall be designed using software that is:
open-source, and free for commercial use; or is
licensed for commercial use.
Hardware design software must support assemblies.
Examples of recommended software for hardware design includes:
Onshape
FreeCAD
Onshape is what we use, primarily due to it's seamless integration with the extensions created by K-Scale labs for URDF generation.