I have a mod that extends -y and +y height, and I cannot change the mod loading order with any version above 2.0.0 because it is built-in. Is there a way for me to stop tectonic from being built in, like a json to edit or file to remove? Forge 1.20.1

Reordering the mods won't fix the issue; if the mod that extends world height loads above Tectonic, you'll get vanilla terrain generation instead. You need to make manual edits to the mod files using a datapack if you want a height limit different than vanilla or the built-in increased_height setting.

Thats not true, Ive gotten the recent version and 2.0.0 which I am currently using to work in tandem. I need to edit alot but it does work. The only issue with the recent versions is that I cannot make them un built-in, to set automatic load order. The only mod that I have had an issue somewhat like that is lithosphere which removes ocean water. The only other issue I am having is cave gen, which I am currently working on.

• With tectonic above SWL (Shattered World Limits is the mod im using) caves gen weird in general and editing the mod doesnt fix it (giant tubular caves at the bottom of the world are locked from -40 downward no matter what)

At this point im getting told 2 different things and having 2 different issues. Tectonic above SWL locks caves from the top at -40 (config height only works for 1 value)

SWL above Tectonic removes the cave gen entirely for tectonic

Both mod devs want their mod above the other.

I could care less about the caves, I just want to be able to make the mod not built-in

You can't make the mod not built-in.