Enforcing a concrete performance budget for Expo EAS builds and OTA updates
The situation Say you are a mobile engineer on a small React‑Native team that uses Expo Application Services (EAS) for CI‑driven builds and over‑the…
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Deep‑link crashes in Expo Router when the app hits real traffic
The situation You are a mobile lead on a React Native product that just shipped version 2.4 with Expo Router 2.1.0. The release added a “share‑to‑ap…
Migrating a React Native app to the new EAS build and OTA workflow without a release freeze
The situation You are the lead mobile engineer on a React Native app that ships to 150 000 active iOS and Android users. The app currently uses the…
On-Device Computer Vision in React Native: Auto-Aligning Progress Photos with MediaPipe and Expo
A person can take thirty photos of the same face and still produce a timelapse that looks like camera shake. On Monday they stand closer to the mirr…
How SWSH turned 300 monthly builds into a release pipeline nobody has to babysit
"Expo's ecosystem helped us take human error and effort out of the release process, from a local build to a validated release." — Nathan Ahn, CTO, S…
Build vs Buy: What Founders Get Wrong About Templates
Every week a founder DMs me the same question: "Should I build my React Native app from scratch or buy a template?" Here's the framework I use to an…
Shipping an Expo app to the App Store: the landmines nobody warns you about
I recently shipped Add to Calendar: AI Events — an iOS app that turns screenshots and text into calendar events — built with Expo SDK 52 and React N…
Error Analysis
To learn how to analyze an error, we are going to use the error below as an example: nx run mobile : android ✔ 7 / 7 dependent project tasks succeed…
Building React Native Shouldn't Feel Like Assembling IKEA Furniture: A Modern Monorepo Starter Kit
"I just want to build my app." That sentence sounds simple. But if you've ever started a new React Native project, you know that is rarely what actu…
40 React Native Devs on What They Wish Their Boilerplate Fixed
I asked ~40 indie React Native devs one question: "What do you wish your boilerplate did differently?" Three wishes dominated: less opinionated navi…
Six Lines, Zero API Calls: Running LLMs On-Device in React Native
Every AI feature I've worked on has done the same quiet thing: collect the user's text, send it to someone else's server, pay per token, and pray th…
GamFree: как я в одиночку сделал приложение против лудомании — без бэкенда, аккаунтов и подписок
Привет, Хабр. Это история о том, как я делал ставки 7 лет, потом бросил, а потом написал приложение, которое помогло бы мне бросить раньше. Расскажу…
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. T…
Expo SDK 56
Originally published on expo.dev/changelog By Alan Hughes, Brent Vatne Today we're announcing the release of Expo SDK 56. SDK 56 includes React Nati…
Build a Fitness Wearable Companion App with React Native (HealthKit + Health Connect)
You bought a smartwatch. Within a week, you stopped checking the watch face. The dashboard, the streaks, the weekly chart — all of that lives on the…
Как я сделал трёхуровневый кэш сообщений в мессенджере на React Native — и что узнал по дороге
Я делаю мессенджер ONEMIX на React Native. К моменту, когда я начал писать этот пост, в нём уже больше десятка экранов, групповые WebRTC-звонки чере…