To understand computer engineering principles through the process of building a computer. I build this app as a breadboard simulator that you can build an 8-bit computer from simple logic gates if you don't want to tangle with the hardware issues as a software engineer and cut some wires and break some hardware.

Have fun to build the circuit with your fingertip.

I'm happy to hear how this app been used in your case to continue to improve the app and add more feature.