Vercel Made Crystal Clear · chapter 1: What Vercel Actually Is
The boundary diagram
2026-08-27
Routing, Server Components, and Server Actions are Next.js itself and run on any Node host. Functions, Image Optimization, and ISR storage exist elsewhere too, but you set up their equivalents by hand. Vercel's own edge network is the one box nobody else can offer, because it is a specific company's specific infrastructure.
Below: the paragraph from the book that builds this idea, then the diagram itself (Figure 1.1), and a recap. About a minute of reading.
Figure 1.1 is the diagram this book keeps coming back to. It puts a single Next.js application in the middle, and sorts its features into three honest categories: things that work the same wherever you deploy, things that work but need real setup elsewhere, and things that are genuinely Vercel infrastructure with no drop-in substitute.
Recap
- The idea: Routing, Server Components, and Server Actions are Next.js itself and run on any Node host.
- The picture: Figure 1.1, from chapter 1 ("What Vercel Actually Is") of Vercel Made Crystal Clear.
- Go deeper: the chapter builds this step by step, with recipes and sources at the end.
This diagram is one of many in Vercel Made Crystal Clear.
Every chapter opens with the gist, draws the hard ideas, and ends with recipes and sources.
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