"batteries included" means that the software itself has everything you need to get going. It's not that it's hard to get an individual component, but now you'r

"batteries included" means that the software itself has everything you need to get going. It's not that it's hard to get an individual component, but now you're relying on a third party component and potential issues with random configurations etc. It takes some research and effort to figure out that react-router is the best module among the options for routing.