I'm using an existing project that already wrote an debugged all the code, which is why I went with the nano. After my janky little prototype worked, I designed a hat for this. I'm going to have a buddy review it next. If I get the 👍, I'll order 3 boards & the components, build out one board, possibly repeat this process a few more times, to get a working setup, and submit a merge request to get the KiCAD files upstreamed.

It'll be a while before it's done, but it'll be a good experience to build my first hat (for anything!)