I guess that angle is interesting, but for most of us here, the board doesn't help that much in that case. The chip docs are all in Chinese, and it is a 4x4 CS

I guess that angle is interesting, but for most of us here, the board doesn't help that much in that case. The chip docs are all in Chinese, and it is a 4x4 CSP package with specific pin assignments so you have to route some very tiny PCB traces. I wonder what PCB fabs can handle that without charging a fortune. I believe there are some almost-as-small parts where you have more routing flexibility and a reasonable GCC port.