"Equippable" Items in RomHacking?

Is there some type of way in any of the engines for romhacking that can let you have equipment like Path of Radiance or Three Houses?

I think it would be cool to have stat boosting items or ones that have skills attached but I would think it would be better to be limited to one piece equipped at a time for the sake of balance.

I remember equipment was a thing in Tale of Ternon but i don’t remember if it was ever made publicly available. Maybe look through the thread or contact one of the devs if you want to implement it.

Ternon’s ASM is f2u.