Curios API coding idea with procedures

I'm trying to use cuiros api to create a equipment system to give the player varing effects. The problem is that there is no procedure support for https://mcreator.net/plugin/83322/curios-api in 1.17.1 2021.3.

So I got to thinking about it and came up with this and I don't know if it will even work so I wanted to share.

if I make a custom element that checks for a item in a curios slot can I use it in a procedure like this?

If so, how?