Lithostitched is a library mod with new configurability and compatibility enhancements for worldgen.
This mod introduces new tools for datapack and modded worldgen developers to utilize, with the aim of increasing inter-project compatibility and expanding configurability in general. Currently, there are features such as:
All of these new capabilities are data-driven! Take a look at the wiki page for more information.
(Code for the mod is accessible in the other branches.)