Dependency managers for software development where you basically say "I want some software that does X" and then you call the package instead of implementing your own code for X.
I see, so sort of like the physical equivalent of getting someone else's factory to teleport into your own factory to provide a widget instead of making it yourself?
Yeah, like outsourcing / supply chain. Instead of manufacturing your own nuts and bolts, you buy 'em and assemble your product on the line where you mix in these with components you made yourself.