I was able to find this post, which is a little old in LLM land, but appears to be pretty functional! https://news.ycombinator.com/item?id=40238509
The post and comments include a bunch of other tools that feel similar, and the tool itself works.
Ill have to take some time to use it, but also see what i can learn about how they've consumed and used HN comments more generally.
If only there was some way to find all the similar related previous submissions (there have been a few :)