For the hell of it I cut-n-pasted your original post into Google's AI mode which all of a sudden got really good in the last few weeks, particularly for the kind of question that you were asking where you are trying to find something that you saw a while back. It said

   Based on your description, the project you likely saw on Hacker News was
   stagit. It is known for creating an extremely minimal, bare-bones website 
   for a Git repository by generating static HTML pages.

https://codemadness.org/stagit.html

It strikes me as pretty similar to your link! I have found many cases like "Is Strike Witches a kemonomimi anime?" where the site summary gives the wrong answer and the new AI mode gives the right answer.