It's a joke dear modder, but I tested your mod on 1.21.4 and really liked it.

Would like to use it in my 1.21.3 server, and not sure how much of a hassle it would be to make it compatible. Thanks in advance!

There will probably be a 1.21.3 backport, along with definitely a 1.21.1

1.21.3 version published