https://beta.bopimo.com/level/55
I made a 1 bit calculator that can add 2 bits together! I know it sounds super simple but if you look from the side you can see the machinery and see that it's actually pretty complex!

It even has a display to display the answer in binary!

Might make a full adder later, and then take that to make a 4 bit adder capable of adding 8 bits together! That means up to a 5 bit answer of 30

I can confirm, he made a fucking calculator