If you are playing on the 1.17 beta, you've heard about the blocks of raw ingots, that are made of raw ingots (obviously).
You try to smelt them, and you see that it doesn't work.
With this add-on, now it works!
Select version for changelog:
Changelog
I've checked 10 times in almost 10 different computers and android phones, no one reported the links as ""suspicious""