Jose Zertuche

Building @replit | SWE | Keep grinding | Puentes fellow 2026

[Jose Zertuche @joszert]

this is so beautiful

[apek @apekshik]

this might be the most beautiful thing I've ever made.

fly a real f-16 in your browser: https://t.co/nFmUUtkbDG

realistic fly-by-wire physics, volumetric clouds you fly straight through, the actual Nellis Airfield. there's even scratches on the glass encasing for the cockpit.

the sound design with synth wave is something you must experience.

[Jose Zertuche @joszert]

@evanyou it creates a 2 week roadmap when you can YOLO it in 3 hours lol

[Jose Zertuche @joszert]

insanely good when working on something and just creating slides to explain your work

[DesignArena @DesignArena]

BREAKING: Replit by @Replit ranks at #2 on Slides Arena with an Elo of 1279!

It is the highest-rated slides builder under 8 minutes and generates decks ~24% faster than #1, establishing a new Pareto frontier for Speed vs. Preference. Replit places ahead of Gamma 5 by @GammaApp, Manus 1.6 by @ManusAI, and Claude Opus 4.6 by @Anthropic, trailing only Playyy.

Congrats to the @Replit team!

[Jose Zertuche @joszert]

So this is how it feels to be Linus Torvalds ? 🤔

[DesignArena @DesignArena]

BREAKING: Replit by @Replit ranks at #2 on Slides Arena with an Elo of 1279!

It is the highest-rated slides builder under 8 minutes and generates decks ~24% faster than #1, establishing a new Pareto frontier for Speed vs. Preference. Replit places ahead of Gamma 5 by @GammaApp, Manus 1.6 by @ManusAI, and Claude Opus 4.6 by @Anthropic, trailing only Playyy.

Congrats to the @Replit team!

[Replit ⠕ @Replit]

We’re introducing Bring Your Own Cloud (BYOC) for Replit, with options for development and production in your cloud, whether you use @Azure, @GoogleCloud, or @AWScloud.

Our approach gives security and platform teams greater isolation and control while preserving the familiar Replit experience.

Explore BYOC: https://t.co/RkpasiPFzL

[Jose Zertuche @joszert]

https://t.co/ehoKGxheTS --> im fascinated by this doctrine

[Jose Zertuche @joszert]

@finkd @hnshah @johnternus this is so big wow

[Jose Zertuche @joszert]

Xbox finally locked in

[ASHA @asha_shar]

Today we're standing up XBOX LABS (https://t.co/dJSufI1vni). Here is the note that I sent to the team:

Team,
The first video games emerged some 75 years ago. In the time since, there have been booms and busts, but every year there are more great games to play, more devices to play them, and best of all, more people than ever playing. That growth helped make XBOX what it is today, and we've helped shape the industry in return, from bringing hard drives to consoles and online gaming through Xbox Live to Game Pass and cloud gaming, alongside franchises that have brought millions of people together.
In recent weeks, we've seen games rapidly decompiled and rebuilt to run on hardware they were never originally designed to support. Windows PC builds have been translated to run on Apple Silicon or ported to run inside a browser through WebAssembly and WebGPU, the latter now approaching 90% global browser support. Perhaps more surprisingly, we've seen many of the biggest games in the world have been remixed into the source code of another.
These experiments challenge long-held assumptions about our industry: the tether between software and hardware, the boundary between creation and play, and how people discover and experience games. While it is hard to predict the future of gaming, it is easy to see the possibilities in making great games easier to access, giving old games new life and allowing more players to become creators and co-creators. These are unmistakably good outcomes for players, even when (and sometimes because) they challenge our existing business models.
To explore these possibilities, I’ve asked Scott to stand-up XBOX LABS, a small group of game makers, engineers and scientists whose job is to turn emerging ideas into things our players and developers can experience. We'll build in the open, learn from what people do, and measure success by whether more people are playing and creating.
I think XBOX has an important role to play here. Coding became the first major workload for agents because they can write, run, and test software. Games share many of those same properties, and people spend more than 72 billion hours a year playing XBOX games, roughly five times the estimated time spent writing code worldwide. We've spent 25 years learning how to make great games, and I want our game makers to help shape what these new technologies make possible. As we learn, we’ll share the tools we build with developers across the industry, just as we always have.
Our priorities aren't changing. We remain committed to the 4Cs, to making great games, to our hardware and to being responsible stewards of IP and the communities built around it. LABS gives us a way to explore new technology that is game design led without abandoning the work already underway.
Asha

[Jose Zertuche @joszert]

whaaat

[OpenAI Newsroom @OpenAINewsroom]

We discovered a sophisticated recording device that was hidden inside one of our offices. We used our models to understand the device and where it had come from, identifying that a specific employee had planted it a few days earlier. We referred the matter to the FBI, and we’re grateful to the agents and prosecutors who moved quickly to make an arrest. The FBI’s investigation is ongoing and we will continue to support their work.

At this time, we have no indications of this individual inappropriately accessing or exfiltrating model weights, source code, or customer data. The employee was terminated.

We take protecting our technology, data, and people seriously, and as a matter of national importance. Our security program is designed to protect against a wide range of threat actors, from insider risks to cybercriminals to nation states, and this case is an example of how AI can help address these sophisticated security threats.

[Jose Zertuche @joszert]

Written in rust? 👀

[Anthropic @AnthropicAI]

New on our Engineering blog: Creating in-house source control.

In May, we merged around 2,500 code changes per day. In September, we merged more than 30,000 per day. As a result, we became bottlenecked by developer infrastructure built for human (rather than agent) scale.

Here, we share how we built a new version control system—and fully migrated our monorepo from git—in five months: https://t.co/wzNkwHs7IN

[Jose Zertuche @joszert]

"Build something people want" , yeah bro but also build something YOU want

[Jose Zertuche @joszert]

So satisfying when you can bounce back ideas with another engineer and come up with a proposal

[Jose Zertuche @joszert]

The bar keeps getting higher. Super cracked engineers 🔥

[Gadi Borovich @GadiBorovich]

Puentes starts this Sunday.

We're flying 15 of the best young engineers from Latin America to SF.

They’re among the most talented in their countries, and they want to be here to compete with the best.

Our goal at @antigravitysf is to help them stay.

Meet the engineers 👇

[Jose Zertuche @joszert]

@GadiBorovich @AntigravitySF Can’t wait 🐐🔥

[Gadi Borovich @GadiBorovich]

Puentes starts this Sunday.

We're flying 15 of the best young engineers from Latin America to SF.

They’re among the most talented in their countries, and they want to be here to compete with the best.

Our goal at @antigravitysf is to help them stay.

Meet the engineers 👇

[Jose Zertuche @joszert]

This is so sick

[Ilter Canberk @icanberk]

Reverse engineered my AC, and vibe coded a lil status bar app so I don't have to find the remote every time.

No first world problem will remain unsolved in 2026.

[Ilter Canberk @icanberk]

Reverse engineered my AC, and vibe coded a lil status bar app so I don't have to find the remote every time.

No first world problem will remain unsolved in 2026.

[uviii @uviii_03]

/anatomy Explain how Redis caching machine works