Ask HN: GitHub project that showed all edits (somewhat proving human authorship)

I am trying to find a GitHub project from a technical person who wrote about getting married/engaged and knowing someone for 10 years and how he knew things like his significant other’s favorite ice cream order etc. I can’t remember if I had found this article on Reddit or HN.

The article had this cool feature where you could replay the full drafting of the article and see every revision and I believe it was an open source project in GitHub.

Ring any bells for anyone? My Google Fu and searching of HN using Angola has failed me.