Available as an assembled Module and as a DIY project.
This Module is currently available.
Muskrat Chip Expander
A breakout panel which makes it easier to swap M.S.G. chips for the Muskrat modules designed by Jason Chandler.
https://github.com/ModularMusings/DIY-Muskrat-MSG-Chip-Expander
Moffenzeef Rat Nest Muskrat Expander