Configuring ore boulders?

[DaforLynx]

So I know you can disable them, which also disables oil fountains, but I'm looking for a way just to configure them to spawn less ores. In the source code I see that there is some way to do it (https://github.com/Rearth/Oritech/blob/1.21/common/src/main/java/rearth/oritech/init/world/features/resourcenode/ResourceNodeFeatureConfig.java), but it's not accessible through the config menu or file. I assume I have to make a datapack or something, but I...have no idea how to do that.

[Rearth]

Yeah most world generation stuff is covered by data packs in recent versions, so you'll have to look into that. You can configure how often the bouldern spawn, how big they are, how many/what ores they contain, etc. with a datapack