Hey!
This isn't as much Fabric as it is JSON data but I'll be using this in combo with modding later.
Been playing around with terrain generation using Misode's tool on github. The preview with the noise_settings I have shows the terrain generating as far down as y -256 and above y 320, but when I actually load a world using the datapack, the terrain only generates between vanilla constrained y levels (-64 deepest, 320 highest), yet I know the pack is doing something, as the terrain is obviously not very vanilla. I'm probably just not modifying something right/at all, any guidance is appreciated! I'll link the datapack-in-progress as well so you can see what I'm working with.
TLDR terrain should gen above y320 and below -64 but it's not
Much love!