cave additions is a mod that overhauls caves
the mod requires geckolib if it is a Impure version, the purity versions only have the cave greebling. (coming soon for the 1.20.1 version)
Additionally ;
this should be compatible with a large amount of modpacks ; but may and will cause unexpected behaviors (non-purity versions)
this should be compatible with 99% of modpacks (Purity versions)
this should be compatible with most modpacks (Blue edition versions)
Impure versions are extremely liable to cause world corruption and are bug nests overall.
Blue edition versions will be Impure versions without the crashes and world corruption.
Purity versions are extremely stable as they are quite literally glorified datapacks.