Mateo Guzmán

[Mateo Guzmán @MateoGuzmanA]

@peterpme On the same painful journey at the moment.

A bunch of animations that used to be smooth are no longer smooth, crashes we can’t reproduce, and cold startup time is a bit worse too.

[Peter Piekarczyk (🥧🚗🐥) @peterpme]

upgrading to the new react native architecture was the most miserable project of my career

no clear end state. no obvious user facing wins. sometimes worse performance

consumes your best engineers in deep, low level work and nobody outside of the react native bubble cares

i wouldn't wish it on my worst enemy. good riddance!

[Expo @expo]

🆕 This PR from @nishanbende adds CSS grid support to react native 🙌

Can’t overstate how massive this is for all of us. Future generations will celebrate Nishan Bende Day 🐐

https://t.co/9Z4thxOUke

[Szymon Rybczak @SzymonRybczak]

React Native Core Contributors Summit 2025 at @callstackio HQ

[Mateo Guzmán @MateoGuzmanA]

PR to add iOS filter blur in React Native core by @nishanbende –��I love the simplicity of the change

https://t.co/JNV0LxiWz8

[React Native @reactnative]

React Native 0.80 is now available!

This release includes React 19.1, stability improvements to our JavaScript API, freezes the Legacy Architecture, and more.

https://t.co/KHfAshhWH3

[Mateo Guzmán @MateoGuzmanA]

@schlimmson 👋

[Mateo Guzmán @MateoGuzmanA]

Great to see my fellow Colombians making global impact in tech. Felicidades, @tiangolo!

[Sebastián Ramírez @tiangolo]

BIG NEWS ✨

I started a company with an amazing team and the best backers 🤓

We're building @FastAPIcloud 🚀

Designed for @FastAPI and Python 🐍

One command: fastapi deploy

We take care of the rest 😎

You code. We cloud.

Join the waiting list! ☕️

https://t.co/KH0riuztev

[Mateo Guzmán @MateoGuzmanA]

Started migrating a Bare React Native app from 0.72 to (maybe 0.79)? Haven't done one in ages, but this time I'm taking the path of moving up one minor version at the time to make it less painless and keep breaking changes minimal

[Mateo Guzmán @MateoGuzmanA]

@sidborderwala

[Mateo Guzmán @MateoGuzmanA]

I was surprised the other day that my Cursor was using 50 GB – until a colleague sent us today how his laptop was consuming 215 GB. Crazy.

[Siddharth Borderwala @sidborderwala]

I have just ONE project open in Cursor and it's consuming 22 gigs of RAM???

I blamed cursor first, but looking at the Activity Monitor paints a better picture. The culprit? next-server with turbo!

[Mateo Guzmán @MateoGuzmanA]

Knowing how to navigate effectively across big codebases is a nice skill to have. Even better, knowing how to navigate across multiple repositories with big codebases. AI is already helping a lot with this, but human input is still needed to do it well

[Aiden Bai @aidenybai]

i love coding on the plane

[React Native @reactnative]

React Native 0.78 is now available!

This release includes React 19, support for Android vector drawables, easier brownfield integration on iOS, and more.

https://t.co/wz4zCxYyad

[Szymon Chmal @ChmalSzymon]

Introducing metro-minify-swc 🚀
It’s an experimental package that replaces Terser with SWC for blazing-fast code minification.

Use with caution and share your feedback ⚡️

https://t.co/VF2gfuCR6a

[Mateo Guzmán @MateoGuzmanA]

Inspired by @o_kwasniewski JSI docs, I put together documentation for the public React Native Android API using Dokka. Super useful!

Do we need iOS next? 👀

https://t.co/I2zYWHt82c

[Oskar @o_kwasniewski]

React Native's JSI has no official docs (other than code 😅), so I created them for myself!

Pretty cool what you can achieve with Doxygen given a few C++ files! 📚

[React Native @reactnative]

React Native 0.77 is now available!

This release includes new styling features like display: contents, support for Android 16KB page sizes, upgrades the Community template to Swift, and much more:

https://t.co/8aWfcLH9Jo

[Mustafa Ali @mustafa01ali]

Five years ago, we @Shopify decided to go all-in on @reactnative. Today, we're sharing how it went.

Some highlights:
🔨 Building features just once has been a huge productivity boost
👩‍💻 Native devs and code are crucial for success
🏎️ RN apps are fast!

https://t.co/OSFmsRO2po

[Gergely Orosz @GergelyOrosz]

Interesting:

Meta created React Native. It’s used (with components at least) in their flagship apps: Facebook (iOS, Android), Instagram (Meta Quest), Messenger (desktop).

Google created Flutter. And yet none of their flagship apps use it (Gmail, YouTube, Maps, Calendar).

[Mateo Guzmán @MateoGuzmanA]

I've been learning Kotlin just by contributing to OSS and it has really grown on me. I like it a lot now, even though my knowledge is still somewhat limited.