We’re building the agent-native alternative to AWS, but it's actually good.
- 33,000+ projects created (10% WoW growth)
- 2x weekly active projects (2000 → 4000+)
- 11,000+ GitHub stars (5x in the last 3 months) - faster than React, Supabase, and Linux
Introducing InsForge ↓
Introducing React Native Doctor
Find performance and security bugs in your mobile app
Run via CLI and fix with agents. Fully open source
npx react-doctor@latest
Hot take: haptics is the most underrated UX layer
Most teams don’t even treat it like a real “layer”-it’s usually something added at the very end if there’s time left
I had the same mindset. Until meet apps where haptics actually worked
That’s when the idea for Pulsar appeared
I thought it would be cool to visualize how virtualization in Legend List / react native works so I made this site
I've been hacking on Legend List @Backpack and thought y'all would wanna see how the internals work
Architectural decisions can make your JSI modules up to 𝟮𝟵𝘅 faster 🤯 - learn how to flatten data structures, use 𝚓𝚜𝚒::𝙰𝚛𝚛𝚊𝚢𝙱𝚞𝚏𝚏𝚎𝚛 & 𝚓𝚜𝚒::𝙼𝚞𝚝𝚊𝚋𝚕𝚎𝙱𝚞𝚏𝚏𝚎𝚛, and improve string building & comparisons in Part 2 of our JSI performance blog post:
Your JSI library might be slower than it needs to be.
Small JSI architecture decisions can make code up to 2x–10x faster - we benchmarked what actually matters:
- HostFunction vs HostObject
- NativeState
- Stack vs Heap
If you care about performance, read this. 👇
Launching SimCam – a tool that finally lets you test camera features directly in the iOS simulator! 🚀
🎦 Stream video from your Mac's built-in or external camera, inject an image or video, or generate a QR code.
The React Native community just got a new powerhouse of knowledge.
🚨 Margelo’s blog is now live.
Expect deep dives into internals, performance, architecture, tooling, case studies, vision camera, and pixel-perfect mobile engineering.
Built by engineers pushing the ecosystem forward.
If you’re serious about React Native, check it out
Ever wondered why animations on #reactnative's new architecture were so laggy?
We partnered with the @discord team, found the bottlenecks, and helped make their mobile app feel buttery smooth.
Here’s the before/after 👇
You guys know you can just spawn iOS simulator with a couple commands, right? Right???
xcrun simctl create "My iPhone 16 Pro" "https://t.co/Mq4SLK6WRD.CoreSimulator.SimDeviceType.iPhone-16-Pro"
You will get simulator ID
xcrun simctl boot XXXXXXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
only on MacOS ofc