Hi Brian, I'm a huge fan of your Comp Science in 4 hours book! It was the truly amazing with no BS. :D > My Background: I'm mainly a JS dev, been a Junior dev for an year now, I've completed YDKJS Series, JS Allonge, Will Senatnce and your JS Courses (all of them) on FrontEnd Masters. > My Goal: I wanna be an OS Contributor but am having a really really hard time making sense of code that i havent written > My Question: How can someone get familiar with new/complex codebase like that of React, Webpack? Or more like, how can someone get advanced Javascript knowledge to able to understand complex code? I've heard people saying i lack practice but how do i even practice something like that? i just cant find anything anymore that can help me. Thanks a lot for reading, have a great day :)