AI & ML

Devlog: Performance Optimization Lessons from ADHD App Beta Testing

TL;DR: The biggest performance and reliability work was not a fancy animation pass. It was fixing the task recommendation pipeline: removing non-trans…

Lesson 1.3 - GraphQL for Screen Complexity and App Changes

Good morning, class! Welcome back. In our last lesson, we explored how GraphQL fundamentally addresses the issues of over-fetching and under-fetching.…

Lesson 1.2 - REST Problems and the First GraphQL Fixes

Good morning, everyone! Welcome back. In our previous lesson, we compared REST and GraphQL at a high, architectural level. Today, we are going one lay…

How to Fix "Module Could Not Be Found" in React Native & Expo

We’ve all been there. You find an awesome library, you run npx expo install , you import it into your code, and you start your development server. You…

How to Inspect React Native Network Requests in Your Browser (With Zero Config)

🚀 Introducing @modhamanish/rn-network-logger — A Zero-Config Network Inspector for React Native & Expo! Tired of setting up complex proxies, debug…

How I Built KisanX — A Full-Stack Agricultural Marketplace

How I Built KisanX — A Full-Stack Agricultural Marketplace (MERN + PHP + React Native) By Saniya Farooqui | Full-Stack Developer | Mumbai The Problem …

Stop Declaring Tools Dead — lucide-react is Still Fine

Every few months, a post goes viral: "Please stop using [perfectly good tool]." This time it's lucide-react. And honestly? The take is lazy What's the…

Expo's MCP Server is Now Free - Connect Your AI Assistant to Expo Projects

The Expo MCP Server dropped its paywall. Anyone with an Expo account can now hook up their AI coding assistant to Expo docs and tools. Previously, you…

Expo Router v56 Ships SSR and Breaks Free from React Navigation

Expo Router just made its biggest change since launch. Version 56 forks from React Navigation, adds streaming server-side rendering, and gives Android…

I am new to dev community I am building an on demand cab hailing service app I wanted someone to review it . Please Its being built with Fastify and react native. For contacting please take my discord lakshyasharma7762

Write Swift and Kotlin directly in your React Native app with Expo SDK 56

Working with native code in React Native usually involves creating separate packages and manually maintaining TypeScript interfaces. Expo SDK 56 chang…

I abandoned my campus app 3 years ago. The Finish-Up-A-Thon made me fix it

This is a submission for the GitHub Finish-Up-A-Thon Challenge What I Built CampusBeat 2.0 — a React Native campus super-app for students across 17 co…

Accessible Forms in React Native: A Complete Reference Guide

Forms are everywhere in mobile apps - authentication flows, data entry, support requests, onboarding... If your app has a login screen, a form is like…

Expo SDK 54's precompiled XCFrameworks cut our iOS build from 14 min to 4

Our fitness kit's iOS build used to take 14 minutes on CI. After upgrading to Expo SDK 54, it takes 4. That's not a CI optimisation. We didn't add par…

This Week In React #284 : TanStack Start, Compiler, React Router | App.js, Gesture Handler, SPM, Expo | npm, Node.js, Astro

Hi everyone, Kacper and Filip from Software Mansion here. This week, TanStack Start is once again in the spotlight. The React Compiler in Rust is on i…

Building LifeFast: A Solo Founder's Deep Dive into Fasting App Architecture

There's a specific kind of frustration that comes from using a health app that feels like it was built by engineers who've never actually used it. The…

Show DEV: Obex, a faith-based self-control app with streak tracking and blockers

I’m building Obex, a faith-rooted self-control app for men who want to quit porn and stay consistent with daily discipline. The stack is Expo / React …

useState Scenario questions - 2

5. You have 5 input fields (name, email, phone, city, password). 1.Better to use: 5.separate useState? OR one object state? Why? ✓ One object state is…

Building Twitter-style Collapsible Tabs in React Native (the easy way)

The problem Almost every social / commerce app eventually needs the same screen: A large header on top, a row of tabs underneath, and as you scroll, t…

Side Project to App Store - A Non-Technical Founder's 2026 Guide

If you're a non-technical founder shipping a React Native side project, the build is the easy part. The hard part lives between "my Expo dev build run…

How Instagram, WhatsApp, Uber & Netflix Would Be Built Today Using Expo Router

You tap Record. You nail the take. You save as Draft. You close Instagram, reopen it — and your Reel is right there. What just happened under the hood…

Building a Native QR/Barcode Scanner for React Native — New Architecture Ready

Most QR scanner libraries for React Native share the same problems — they're unmaintained, they don't support the New Architecture, or they pull in a …

The Death of the React Native Bridge: Moving from JSON to JSI in 2026

What is the Native Bridge? The React Native Bridge is a communication layer that allows the JavaScript thread and the Native threads (iOS/Android) to …

I Built 4 Real Mobile Apps With No Coding Background — Here's the Exact Workflow

I quit learning to code three times. Not because I wasn't motivated. I had app ideas I genuinely wanted to build. I bought courses, watched tutorials,…

This Week In React #283: TanStack, RSC, Liquid DOM, Performance| Expo, Reanimated, worklets, NativeScript | TC39, npm, pnpm, Node.js

Hi everyone, Seb and Jan here 👋! This week we have great deep dive blog posts about data fetching (TanStack vs Next.js) and performance (GitHub and Li…

tapflow v0.3.x: Deeplinks, Keyboard Shortcuts, Screenshot API, and an Experimental MCP Server

Deeplink execution from the browser The one that came up most in real usage: testers frequently need to trigger deeplinks to verify specific app state…

Control SwiftUI and Compose State Synchronously with Worklets in Expo UI

React Native developers have long dealt with the friction of bridging JavaScript with native UI threads. Every time you need to update native state, y…

Our first app is finally live on the Play Store after 4 months of hard work

Hey everyone 👋 After 4 months of development, testing, redesigns, debugging, deployment issues, and lots of learning — we finally launched our first a…

1 RN Thing a Day – Day 14: Predicate & Effect Patterns in React Native

The easiest way to think about it is: Predicate = Watch for something Effect = Do something when it happens Example: predicate: Is someone entering th…

The PKCE "Gotcha" in Expo’s exchangeCodeAsync

Setting up authentication in React Native usually leads you straight to expo-auth-session . It’s the standard for a reason—it handles the heavy liftin…