React articles, KB & FAQs
The latest writing from the React community — articles, knowledge base entries, and FAQs.
- Article
A mental model for React Server Components
How to think about the boundary between server and client without resorting to rules of thumb that break the moment your app grows.
Vercel··9 min - Article
Expo Router in anger: a year of file-system routing on native
What worked, what didn't, and the four times we almost ripped it out. Concrete code examples for deep links, modals, and tab persistence.
Expo··12 min - Article
Shipping faster with the React Compiler
Three months in: where the compiler is winning, where it isn't yet, and the migration steps that gave us the biggest payoff.
Vercel··6 min - Article
Loaders, revisited
We're four major versions in. Here's what loaders are good at, what they share with Server Components, and the patterns we recommend in 2026.
Remix··8 min - Article
TypeScript narrowing patterns React devs reach for in 2026
A short tour of the narrowing patterns we use across our component APIs, with examples that survive code review.
React Summit··7 min - Article
Testing Server Actions without losing your mind
Where we landed: integration tests with a real DB, a thin contract layer, and zero mocks of fetch.
Vercel··10 min - Knowledge base
Edge Runtime — what's supported, what's not
The current Edge Runtime API surface, common Node-only modules to avoid, and migration steps.
Vercel··6 min - Knowledge base
Quickstart — your first Expo Router app
File-system routing, layouts, and tabs in 15 minutes.
Expo··5 min - Knowledge base
Preview deployments and protected URLs
Per-PR previews, preview URL passwords, and how to share preview links with stakeholders.
Vercel··4 min - Knowledge base
Configuring EAS Build for production
From eas.json basics to channel-based deployments and signing credentials.
Expo··7 min - Knowledge base
Deploying an App Router app on Vercel
Build settings, environment variables, ISR and edge configuration walkthrough.
Vercel··5 min