The new NextJS app router has finally been released, and it's awesome. This crash course teaches Nextjs pros and beginners alike the new app router. 00:00 Intro 04:18 Create new NextJS project 10:36 Defining page and layout routes 20:30 Tailwind setup 22:05 Route groups and group layouts 32:15 Data fetching and rendering dynamic data 42:33 Dynamic routes 48:34 Static vs Dynamic rendering & Server Side vs Client Side rendering 58:37 Static generation 1:00:14 Incremental Static Regeneration 1:06:35 Dynamic rendering 1:09:37 Client side rendering 1:21:34 Static and dynamic metadata 1:26:08 Deduping fetch HTTP requests 1:28:50 Link component page navigation optimization 1:33:30 API routes 1:38:46 Outro