The idea is to embrace the JS world to the max and not reinvent any wheels. So Transcrypt will cooperate with any existing JS lib. Only personal I code far more efficiently in Python, especially for bigger apps. But (as is elaborated in the docs) that&#x27;s personal. I&#x27;ve coded quite complicated technical web apps in JS, but somehow it didn&#x27;t fit me like Python does. For different people that will be different, I guess.