Could you port the mod to Neo forge in the new 1.20.4 version and beyond?
Many of the mods you are covering are moving to Neoforge in the new updates, so would help if this also ports to the new launcher.

godspeed w multiloader support! it bothers me so much that i cant hav these yet since i love these textures so much!

Multiloader support is on the table and I want to implement it soon. It will take a little bit though, so please be patient. The goal is to support all three main mod loaders wherever possible.

With the addition of CIT and CET on vanilla Minecraft starting on 1.21.5, does that mean a more streamlined process for multi-loader on that version and beyond?

In 1.21.5 NEBs can probably just be a resource pack again. I'm not sure of the details. I need to finish multiloader support and 1.21.x support before I want to think about that.