There’s a fork of this by one LadyEebs that adds a whole bunch of modern touches like ragdoll physics, advanced lighting, fog, and she’s even been tastefully modding the single player maps with more detail. I don’t have the repo handy because I am on my phone, but a lot of the dev discussion takes place on the Discord of The Massassi Temple (https://www.massassi.net/). I do run that site but am not involved in openjkdf2 or Eeb’s fork. There is also another JK reimplementation project by BAH_Strike that is also impressive.