So the BlueX micro has this [SDK3](https://gitee.com/BXMicro/SDK3) git repo available, but it's almost entirely in Chinese. I figured that with some machine translation and the source code I should be able to make some headway.... Well, I've learned a few things. The examples (and much of the code) seems to be using Keil's MDK-ARM thingy (toolchain? IDE? IDK). It's not version 6, which would be compatible with VSCode, but instead it's V5 still which means it's some Windows only software. There does appear to be a non-commercial license available and I was able to install it using Wine. It even boots! But at that point I get lost as to how to actually use any of the examples with uVision 5. Something for another day to poke at. I also noticed there is a `tools` folder that seems to include some configs and scripts to work with JLink. That's good to know, as I do have a JLink Edu that does work so I should be able to poke at an R02 if I hook up the appropriate wires using something like a "supported" toolchain. It's not exactly Free and Open, but I'll take something that works over nothing.