Principal Design Engineer @github Prev @stripe Prev @github too

Zaragoza, Spain
Joined April 2007
Excited to share that I’m back at GitHub as a Principal Design Engineer, working on the new GitHub Copilot App. Looking forward to building great experiences, collaborating with an amazing team, and helping define the future of agentic coding.
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Small update, but big improvement 😄
small update to the sessions menu in the GitHub Copilot app 💫 worked with @gimenete to make it all a little calmer 〜
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Polishing every little detail 🤩
Working with @gimenete on the diff editing experience in the GitHub Copilot app. Let us know what you’d like to see 👀
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If you’re using the Copilot app, I’d love to hear your feedback and feature requests! Feel free to DM me or just reply here.
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Alberto Gimeno retweeted
Credit where due: Copilot Desktop for Mac is ergonomic, productive, feature-rich, and clean. I've been forking sessions, running subagents, and handling stacked PRs no problem. They're cooking! Hope the Copilot team enjoys a great weekend @gimenete @kdaigle @adrianmg
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I was hoping Apple to create a non-pro version of its Vision pro glasses. Cheaper and more lightweight. Meta has done it first.
NEW: @Meta just unveiled its first VR glasses. They turn almost any space into a personal theater or multi-screen workspace. -Weigh just 3.5 oz -Stream hundreds of Xbox games -First VR device certified for IMAX Enhanced -Watch 3D movies on a cinema-sized virtual screen -Create an infinite multi-screen workspace anywhere -75+ VR games work with just your hands -Pocket-sized puck handles compute and battery Priced at $1,299.99. Coming spring 2027.
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And if you use a multi model tool like Copilot you don’t even have to switch
I love how switching costs for these tools is ZERO Claude, go learn how I work in codex, I'm coming back
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How to render a huge PR with over a million changed lines across 2,200 files and 400+ review comments? The tricky part isn’t the code, it’s the comments. I wrote about how we tackled this in the GitHub Copilot app: github.blog/engineering/user…
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Extraordinary engineering milestone 🚀 The article is also excellent. Full of interesting details 🙌
Just one engineer and a team of agents ported the GitHub Copilot agent runtime to Rust, shipping 800,000 lines of production code while retaining code quality. 🚀 How it worked 👇 github.blog/ai-and-ml/genera…
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Coming soon to the GitHub Copilot desktop app: editable diffs!! ✏️ Agent got you most of the way there? Make those last tweaks directly in the diff, right where you’re reviewing the changes. Co-authored with @lichinlin!
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🚀🚀🚀
We ported the GitHub Copilot agent runtime to Rust! Beyond the direct performance impact, it's a testament to the ambitious projects now possible with agents. @stephentoub shares our approach and learnings on the 800k Rust port using the GitHub Copilot app: github.blog/ai-and-ml/genera…
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What if China’s labs don’t have the misalignment problem, or they know how to fix it?
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Is the Hugging Face incident AI’s Chernobyl? Nuclear energy promised abundant, clean power. Then Chernobyl showed the world what could go wrong. AI feels similar. What would AI’s Chernobyl look like if this isn’t it?
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Today I fixed a thing. A small UX issue on macOS that had been annoying as hell. We’d tried to fix it three times already, with no luck. Gave it another shot today and finally fixed it. It felt soooo good. 😌
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Great engineer and better person 🤘 Go, hire him! Quick! 🚀
📢 I'm officially looking for a new job. You hiring? Full time, remote from Spain, paid via EOR, IC, TypeScript, no crypto, support for 3-4 conference speaking gigs/year. Share plz. 🙏 DMs open. Act now, while supplies last!
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Alberto Gimeno retweeted
La #bonilista de este fin de semana contó con el apoyo de @atico3studio, una agencia de diseño de producto con una propuesta muy clara y transparente: 2 diseñadores para tu equipo por 3.750€/mes. Sin permanencia. Tenéis + info en su web 🔓 bonilista.short.gy/atico3
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Remember when we used to discuss tabs vs spaces
Remember when we used to come on here to complain about useEffect. Simpler times.
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Alberto Gimeno retweeted
Project HydraFusion in GitHub Copilot achieves frontier-level quality at up to 67% lower cost! It achieves this via runtime orchestration that creates a plan, chooses models from multiple providers to draft, critiques and revises, or cascades to more powerful models to complete your task. github.blog/ai-and-ml/github…
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Big plans for this month. Let’s see how it goes.
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I'm trying to understand how githero.app got 3M requests last 30 days. Probably bot traffic? Now it's shut down because I exceeded Vercel's free tier limits. Thinking what to do next
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This is the craziest thing I saw in our vacation to England. We had a lot of fun and visited beautiful places: London, Kent, Bath, Bristol, the Cotswolds, …🤩 Thinking already on what to do next year 😄 For now, let’s go back to work.
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