Hi, I have a few ressource packs I offer support for Guard Villagers and got some feedback to provide

• I use Entity Model Feature to change the model.

Fabric and Forge never shared the same model name, but on fabric port as of 1.21, the models have been move from the assets\minecraft\emf\cem folder (with vanilla mods) to assets\minecraft\emf\cem\modded\guardvillagers with a rename of the model to :

guard.jem
guard_armor_inner.jem
guard_armor_outer.jem
guard_steve.jem

This makes most sense now and I thought it was reflective from a change on forge, but wasn't.

About the steve model, the armor uses the player file, wich is limiting the possibilities to modify the mod model itself or even the player one. Because either armor on guard won't be dislayed properly, or on the player. So idealy steve models would have their own guard_steveguard_armor_outer/inner file

• Now for the texture part.

Both version hopefully uses the same files location assets\guardvillagers\textures\entity\guard wich is good. But I don't like the way the biome is handled.

In my pack, I provide random skins, and got to duplicates my texture files 7 times and match 7 .properties files wich is quite annoying any time I make an addition :p
What I propose is to work like vanilla villagers do.
One base texture in the current location assets\guardvillagers\textures\entity\guard, and a biome folder where the armor gonna get his color variation in assets\guardvillagers\textures\entity\guard\biome

Not something I would uses myself but this would provide even more randomness possible as with Entity Texture Features you could chose to applied different biome files to only some base textures.
We could even think a step further and include a second folder like assets\guardvillagers\textures\entity\guard\armor so you set the armor parts here, and the biome folder only variate the color of the tunic

Hope you'll get consideration from this feedback.
I will also open an issue on the fabric side, as the goal is also to have both version identicaly built so no duplicated files :)