What the hell, so web developers were somehow reinventing basic UI elements like buttons at every use site? How is that even feasible? Making reusable self-con

What the hell, so web developers were somehow reinventing basic UI elements like buttons at every use site? How is that even feasible? Making reusable self-contained UI widgets is a menial task that can be solved by just throwing more money at the problem. We could pump out hundreds of widgets every week if we wanted to. The hard part is coming up with a way to easily compose them and share state, not just on one level but widgets that are composed of other widgets that are again composed of other widgets.