That’s a very cool app, but I think it is missing many, many references to books in HN comments? It only has like 15 total sci-fi books. I don’t see any of my comments mentioning some sci-fi books.
It's a bit old. I bookmarked it a while ago, I don't think it has an update mechanism. A daily frontpage pull + AI parsing should be enough to keep it up to date.
Opinions:
A) I love all the scifi book recommendations that cone up on HN
B) i wish you’d all stop recommending great and amazing books. My queue is so backlogged and jammed I'm never going to catch up.