I made a small and light CRUD web thing in FastAPI to organize my personal library. Mostly it focuses on physical books, but handles ebooks too. I published it as FOSS and some people requested features, so I expanded it a little. It's nothing fancy: https://github.com/seanboyce/ubiblio
...absolutely no one requested an RISC V port, but I did that too for laughs. Neat to see the whole thing run on a system the size of a postage stamp.
Not sure what to do with it next. Will probably just let it be what it is, and fix any bugs that people report. Maybe move on to a new little weekend project.