### DISCLAIMER - I use Gridsome for sketching - It won't be Gridsome after I finish the sketch - It will be Nuxt - No, it likely won't be not Nuxt - Vue has 2 major concepts you need to grasp: components and reactivity. Catch up on that, and you'll be understanding the code easily - Node is performant enough, we will apply aggressive Nginx caching to it to ensure that even more - SSR is rendering as much HTML on the server as possible and sending ready to display HTML to the client instead of JS creating it client-side - Hydration is constructing vDOM from ready-to-display server- or statically rendered HTML - vDOM is a representation of DOM created by Vue to batch DOM changes for performance reason