Project Hail Mary by Andy Weir

I don't read sci-fi novels.  Too science-y.  For someone that's not educated much in science, I don't know if it's made-up science for the book or real science in real life.  So I tend not to read any sci-fi books.

Math Teacher summarized it for me.  It turned out to be a real cute story with a happy ending.  I imagine an anime for it, but I highly doubt it'll happen.