I am developing a Mod need a mod just like this, but the model register almost drives me mad.
So weather the mod will have 1.16.5 ?
If not, I have to find another way.
Thank you!
(I am Chinese and my English isn't good enough, sorry)

Sorry, it won't be updated.
The model registry drives me mad too, and changes every version. I had to rewrite most of library several times and I got tired.
I abandoned modded minecraft and I don't have plans to go back.

You will have to find another way.

Ok, thank you.
Maybe I can find something new from your code :(