This has been creating a huge issue in large modpacks with a lot of different ways to make the same thing, sometimes you don't get (for example) the flavor of steel that you need to make an UNU vehicle. Possible?

If you can figure out how OreDict works in 1.12.2 and 1.15.X and get it put into a WrapperOreDict class so I don't touch any OreDict classes in the main code, then yes. Otherwise, I ain't touching the Forge jank. I already have enough issues with their regular janky systems.

My solution is to use an OreDictionary converter mod, specifically this one. It can be configured to convert specified OreDict entries too

link: https://github.com/Brycey92/OreDictionaryConverter/releases/

Nope. I'm not going to pull in a mod to use a core feature of Forge/MC. Try again.

So, it turns out OreDict is gone as of 1.13+. Don't want to try to support a system that's not work-able in future MC-versions, so I'm going to have to flag this as a wontdo as it's not a good idea to lock the code into a specific system that Forge sees fit to not maintain.