mbedOS on nRF52840 MDK USB Dongle

I’ve been trying to get mbedOS to work with the MDK USB dongle - and I’m not exactly sure if it’s actually supported or not, is there any specific documentation regarding mbed and the mdk dongle? - I tried upgrading the bootloader to UF2, but I’m still not sure of how to work with this as the tooling (pyocd list, etc) I saw still didn’t recognize it.

(I’m a beginner when it comes to electronics - most of my knowledge is just with Arduino-like stuff, and the program I’m trying to make/design is to use the boards for its bluetooth capabilities, and reading a few sensors on my phone - and sending some info back)