part of the work in designing a chip isnt just designing and attaching wires, but designing the fundamental instruction set and system architecture that goes along with the chip.

because since you have an architecture(think like x86, arm, powerpc, risc-v), developers can start to actually formulate instructions on what to do with said hardware., be it if it was deaigned for 8 qbit, or 1million down the line, the point is that theres a baseline now in which one can start formulating and try to execute said commands.