@meatcomputer So far I've flashed the micro:bit and a STM32F103C8T6 which is more commonly called the "blue pill". The mico:bit was nice because you don't need any other hardware. For the blue pill, I also ordered an ST Link v2 to help program it as that's what recommended though it looks like you can also use an FTDI style programmer as well but I haven't tried that yet.

I'm just getting started with this so I haven't done a whole lot yet.