[1.16.1] How Do You Add Custom Crafting Types?

Hello, I am trying to add real crafting support for the fletching table. I started out by making the GUI texture. I made it just like the smithing table except no hammer and no outline of an ingot on the second slot. I then went on to make a custom crafting type for the fletching recipes. I had lots of trouble doing this. I was wondering if their is any good reference code or tutorials on the internet for 1.16 for custom crafting types. All the references for this were outdated. Thank you for any help

Edited November 22, 20204 yr by Chuck16