You can find some discussion of how HN works here [0]. It appears they use Arc [1]. [0] https://news.ycombinator.com/item?id=14371189 https://news.ycombinator.

You can find some discussion of how HN works here [0]. It appears they use Arc [1]. [0] https://news.ycombinator.com/item?id=14371189 https://news.ycombinator.com/item?id=14371189 [1] http://arclanguage.org/install http://arclanguage.org/install