In 2020-2021 I participated in the Building Beauty Online course (the architecture side) and the Beautiful Software seminar. I wrote up as much as I could:
Basically dump everything in ~/Downloads and then a couple of scripts to archive it off to ~/doc/YYYY-MM every month, then every now and then I might sort that into ~/archive/home/doc and ~/archive/work/doc.
Got a few context-specific directories; ~/src, ~/screenshots, ~/notes.