Ask HN: How Hacker News calculates karma points?

Are there any standard algorithms to rank the user activities?

This repo [1] documents some of the things not in the FAQ. It is not my repo. There are no published specific details around the ranking system AFAIK otherwise people would try to game it. There have been some high level details in comments by dang throughout the past.

[1] - https://github.com/minimaxir/hacker-news-undocumented