Well, considering the number of dependencies a typical web project has, I can tell that I'm far from understanding the internals of every library used in our co

Well, considering the number of dependencies a typical web project has, I can tell that I'm far from understanding the internals of every library used in our codebase. I mean, of course you'll want to do that in some cases where performance is really important, but generally speaking type signatures and docs should be enough.