I am thrilled to announce that I've partnered with Syclone Studios,(@Syclone_Studios) and Lithos will be coming to the Minecraft marketplace in March! It is exciting to see several months of hard work nearly come to completion.
Mod support is mostly added by volunteers. I'm too busy with Java and Bedrock to work on it myself. I always like the idea of more mod support, but I can't make it happen by myself right now.
I figured I would ask since it is basically just CTM without Optifine (which is also a mod... just a really hack based one). Maybe someone will volunteer to convert the current CTM stuff to also work with it since the connected textures already exist in the pack. Anyway, thanks for the response and all your work on this awesome texture pack.