I would venture to say you haven’t packaged or shipped any complex software or had to do so in a way that scales to hundreds or thousands of machines. This is along the line of “i could build uber with 50 engineers”.
Then again, taxis date back to at least Ancient Rome (IIRC they found a taximeter device using pebbles to count wheel rotations). And arguably, knowing humans, as soon as we figured out how to reliably use an animal to move a person, someone started offering moving people in exchange for money...
The Antikythera mechanism suggests quite a bit of previous art. Making a device for counting wheel rotations wouldn't be very difficult. You could do the billing on a wheel too! One set for each customer! But it would be easier to just do the billing by carving it into a clay tablet.