Will it be possible one day to have as much agility in hardware as in software?

I've seen many projects (from start-ups or big companies) that couldn't scale up their embedded system because of a lack of agility. An update of the robot already sent to the factory, a lack of components (breakage) and bingo!… A cascade of problems.

When you have an idea for an application, software, or a web application, you don't even think about what hardware is running behind it. It is transparent, fluid, and adaptable over time.

Some projects are set up to gain agility, but would you have any advice to give to these projects?

Tips to implement or mistakes to avoid?