Are you still trying to find the alloy recipe?

Try this!

We consider the Alloyer GUI as:

 S1 S2 S3

                    O

   L

When alloying, put a lava bucket in the L slot.

Then, try copper block, tin block, iron block and nickel block in the S1 and S2 slots.

Then, click one of the slots. You can get a bucket of melted stuff. Craft it with two blue ice!

Recipes are:

• Copper block + tin block = bronze
• Nickel block + iron block = invar
• Nickel block + copper block = constantan
• Compressed netherite + double compressed redstone + bronze ingot = netheredstonite

Have a try!