The key feature of my idea is to do everything without soldering or sticking wires into the breadboard.
AnyFlasher is a Raspberry Pi hat, it is a matrix of multiplexers/demultiplexers. This way we can connect the Raspberry Pi pins in any given order to the breadboard pins. So there is no soldering, we can connect the devices with a direct cable or by simply inserting the module into the breadboard.