Maybe there is a specific time period you are referring to where this was common but as I understand it, pre-industrially there were very few artisans selling products for money. Clothes were made largely by women and girls for their families.
You could say it was brief, relative to humanity history, indeed, as a transition period between cottage/home textile manufacturing as well as sewing, and high (and accelerating) automation managed by fewer people and lots of low-paid workers (as it is today).
And such is the trajectory for software development, a brief golden age, between the moment where computers barely existed, and the moment where automation/acceleration takes over.
It won't eliminate software development, but it won't require as many people as it does today. Some "local" artisan shops, highly skilled, and more expensive, may still exist.
But the capital currently feeling high tech salaries will inevitably seek new/other growth opportunities, as it has always done with other growth drivers.