The pin runs some android based software as the website mentions adb. You can build your own interposer, and they are selling the current official one on Etsy, in a 3d printed case. It doesn’t sound like something made in a factory. I guess it uses some off the shelf usb to jtag chip or similar.

The interposer files are in this repo: https://github.com/MaxMaeder/OpenPin

From the bom it seems it’s just a micro usb to pogo pin converter, no chip mentioned, so the pin has an usb port, but pogo pin form…