> [T]he reason most folks might elect to use a framework is "to save time". Cool! So now we’re expressing something we value, and we can evaluate third party c

> [T]he reason most folks might elect to use a framework is "to save time". Cool! So now we’re expressing something we value, and we can evaluate third party code and our own against that value. > Understanding the source of libraries we’re using is great... Again, we may value that, we may not. “Treat it like it’s yours to understand and maintain” does not mean eagerly read all of the source. It means that you should act like you’re also responsible for the code’s maintenance, whatever that is and to the best of your abilities. Because it is a part of your app when you use it.