Question on Own recipe catagory and how they are setup

[Satis]

So I have been looking a bit into the recipe.lua and recipe-category.lua

The way it is right now, all recipe have by default the "crafting" category unless it's specified with another category.

What I'm looking for it how do the game difference between the category "crafting" and "advance-crafting"?
What I mean by that is that I know for the fact that if you set an recipe to category "advance-crafting" that recipe can only be created by the blue and green assembler and that category "crafting" can be crafted by all, even the player him self,
but I can't find anywhere where the category that only allows the recipe to be created by a specific object is set.

What I'm trying to do is making an item able to be crafted only by assemblers(all 3 types: gray, blue and green) and not the player him self.

Kind regards
Satis

[Satis]

Never mind, I found out how they were linked together by looking over all the lua files.

[matjojo]

Never mind, I found out how they were linked together by looking over all the lua files.

hey good man, please. for the sake of all the forum users and me, who came over this and wanted to know the same. How was this actually linked?