This is awesome! 9 months ago or so some coworkers and I had the idea to make a Wordle style game where you have to guess the book using some clues from a book including the first sentence. I stopped adding clues myself but your post reminded me to get it open sourced :)
There's a small client-only app here to check out: https://github.com/loganintech/bookdle https://loganintech.github.io/bookdle/
Or if you want to see the source code for the "platform" where I added a database and such: https://github.com/loganintech/bookdle-platform