If anyone's interested, I posted a few articles over on my personal site a few days ago, here (https://travisvroman.com/).
One of them is a sort-of recap of where Kohi is as a project since the last article was posted there on it two years before.
The other two are actually copies of articles by John Carmack from the past which had dead links or were dead links themselves and were pulled from the web archive. I posted these there for posterity.
Enjoy!