I forgot to mention one major new capability of this docking port. For 2 ports to dock, one needs to be active and one passive. The basic design allows for one port to be active or passive as needed. But so far all ports built are only capable of being active, other ports only being passive. This Starship port is the first ever, that actually implements the capability to do both. That is needed so Starship can dock to Orion or to the planned lunar orbit space station.
BTW this active/passive is new terminology. They used to use androgynous, male, female in some bygone era.