Currently, in 1.12.2, we only have one mod which support IRecipeFunction and IRecipeAction : Artisans Worktables. It is quite limiting as it has no multiblock support (multiblocks are cool), no per-recipe power cost & duration and a set amount of machines. Since Modular Machinery aims to be a mod allowing pack devs to customize their machines to the maximum, it would be a perfect mod to fill that niche. These would allow a few things which are currently impossible, such as :

• Custom drills compatible with IE's ore deposits (IRecipeAction)
• Item output dependent on input's NBT (IRecipeFunction). Allows auto anvils, auto enchanter (without manually every tool + every book)
• Random outputs (using IRecipeFunction + IRandom)

All in all, I think it would greatly increase the possibilities of Modular Machinery

P.S : a function for determining power and duration would be nice too, to pair with these changes