The CACM article discussed here at the time (just 3 months ago!): https://news.ycombinator.com/item?id=37275676
The relevant paper is https://arxiv.org/abs/2203.03456 and an improvement here https://arxiv.org/abs/2304.05279
I wonder if this will become standard curriculum for undergrads sooner rather than later. It's apparently a very simple and approachable method.