The JS module system, which I always found confusing while doing frontend development... seems to be getting sorted out as I listen to the lecture. Not only the concepts of CommonJS, AMD, ESM, UMD, but also the historical context of why such structures emerged has been explained, so a framework is being established in my mind. Especially, by showing how the module system works in modern tools like Webpack and Vite, by examining actual configuration files, I'm reflecting on myself who used to be at the mercy of tools. 😊😊 I will diligently listen to the remaining lectures and strive to grow significantly. Thank you for the great lecture :)