Last year I built an interactive library of books a bunch of friends owned. It was a private sheet that allowed us to see who has what book so that we could borrow it or talk about it whenever we wanted.
You filled in the books that you had, and it'll populate onto a bookshelf on another tab. Here you can see who owned that book so you could reach out and ask them to borrow it.
I'm pretty sure most of our 2022 goals, including my own, are to read more books. So bringing this back and sharing it with yall to use
(Works best for close friend groups - but if you find new ways to use this I'd love to see it)