6 React Native + Expo Patterns That Let Web Developers Ship iOS and Android Apps in 30 Days

React Native’s New Architecture is now default. Expo is the official recommendation. If you already ship React on the web, you can reuse most of your mental model and a surprising amount of your code. Here are 6 production patterns that let a Next.js developer ship real mobile apps fast. 1. Replace React Router With File-Based Routing Using Expo Router If you know Next.js App Router, you already know Expo Router. The file system defines navigation structure. Layout files wrap screens. Before (Next.js App Router) // app/jobs/[id]/page.tsx import { useParams } from " next/navigation " ; import { useJob } from " @/shared/hooks/useJob " ; export default function JobPage () { const { id } = useParams < { id : string } > (); const { data , isLoading } = useJob ( id ); if ( isLoading ) return < div > Loading... </ div >; return ( < div > < h1 > { data . title } </ h1 > < p > { data . company } </ p > </ div > ); } After (Expo Router) // app/jobs/[id].tsx import { useLocalSearchParams } from "