Thank you! I definitely will explain it better/in more detail.

Thank you for the advice with the hardware, I'm not yet too familiar with the hardware side, but I'm learning and your feedback is really important to me, thank you.

I tested the barcode scanner with quite a few products and thought it to be pretty good for the money. I mean, for me it's a personal thing, so no need for super high performance. If the item is already in the system, you can scan 2-3 times per second, which is pretty good i think.

I'll definitely look up the PI and monitor part thank you !