Grégoire Mielle (@greeeg) header
Grégoire Mielle (@greeeg) profile picture

Genuinely curious. Building things on the Internet, economics, history. Engineer @Pennylane_tech

🇫🇷 Paris, France
Joined September 2012
Photo by Grégoire Mielle (@greeeg)Photo by Grégoire Mielle (@greeeg)Photo by Grégoire Mielle (@greeeg)Photo by Grégoire Mielle (@greeeg)
Grégoire Mielle retweeted
Should Europe leave frontier AI to the Americans and the Chinese? The idea has gained ground in Europe. It is a fundamental mistake. Build or surrender: for now, the choice is still ours. Full article below.
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Grégoire Mielle retweeted
As you invite more agents to our work, and create software factories to be more productive than ever, you’ll soon outsource everything to an agent, even the thinking. The work you will do will feel frictionless, it will feel amazing on the surface, but once you go a bit deeper, it’ll feel extremely shallow. It won’t reflect the struggles you went through, your decisions, and ideas. It will no longer remind you of you and the work you aspire to. You will turn into just another extremely efficient producer of things, but not a creator like you were before. Invite friction to your work.
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Grégoire Mielle retweeted
I'll continue to die on the hill of "magic directives are bad API interfaces". They're not type-safe, they're not extensible, no native runtime control, they're just strings. ... I can't believe I'm saying this, but I would rather debate @ directives. Pls rewind history.
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Grégoire Mielle retweeted
Got to admit: Microsoft absolutely nailed its developer agent positioning. Other startups: "we built an AI Engineer" - suggesting to leadership that it will replace developers (and thus worth paying $$$ for) Microsoft: "a peer programmer" - suggesting it needs devs (it does!)
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I think we've become accustomed to seeing back-to-back announcements by major AI players: Google launches X, OpenAI announces Y. But where's Apple? You have to wonder how they can be so far behind with all the resources they have.
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Aujourd’hui nous créons le premier compte courant français rémunéré au taux de la BCE sans conditions... Mais ce n’est pas tout ! Avec @vincent_ard nous vous expliquons tout 👇 ! Bienvenue en 2025 ❤️ ! Avec plus d'un million de clients en France, nous localisons entièrement notre application pour répondre aux besoins des Françaises et des Français. La succursale française de Trade Republic est opérationnelle. Nous lançons donc : -un Compte Courant avec un IBAN français, rémunéré en permanence au taux de la BCE (3% brut actuellement) sans conditions et sans plafond ; -un Plan d’Épargne en Actions (PEA) avec la fonctionnalité des plans d’épargne sans frais de courtage Nous allons également désormais prélever à la sources les impôts relatifs aux intérêts ou dividendes reçus sur le compte. Nous sommes également très heureux d’annoncer que @traderepublic sert désormais plus de 8 millions de clients en Europe et gère désormais plus de 100 Milliards d’euros globalement. Avec notre directeur France, Vincent Grard nous vous expliquons tout dans une vidéo Youtube de 20 minutes. Vous avez sans doute beaucoup de questions ? Nous avons essayé d’y répondre ! Vous retrouverez le lien de la vidéo en commentaire ! Également en commentaire, le communiqué de presse publié ce matin. Un immense merci aux équipes de Trade Republic qui rendent ce lancement possible 🚀. Et à vous toutes et tous pour votre confiance qui nous honore 🙏. En avant Et pour une fois, je peux écrire juste pour aujourd’hui : Vive Trade République ! 😅 #TradeRepublic #France #PEA
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The speed of esbuild, integrated with Vite & great features like advanced chunks configuration. Thanks @voidzerodev 🎁
🎁 A surprise holidays gift: after over a year of hard work, we have just published Rolldown 1.0.0-beta.1!
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The best time to start learning React Native was in 2015. The second-best time is now.
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Grégoire Mielle retweeted
How is this website so fast? I take a look behind McMaster-Carr and detail all the techniques they are using to make it fast. They are doing it all — prefetching HTML, inlined CSS, fixed images, pushstate — and all on a stack with 15 year old tech. youtube.com/watch?v=-Ln-8QM8…
how come a company founded over 100 years ago has the fastest site on the internet?
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Grégoire Mielle retweeted
After working on improving CI system for the last two years at @figma, I just want to say how interesting and challenging the scope of the work is, and how often it's overlooked by a lot of engineers because it feels "back-office"-y.
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Grégoire Mielle retweeted
SpaceX did this with 3/4 of Docusign’s headcount btw
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Grégoire Mielle retweeted
With @tsapeta we got curious: How big is an app binary on iOS if you submit an empty react-native app? Here's what we learned 🧵
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Grégoire Mielle retweeted
Why we wrote Docker in Go instead of Python:
Here's why we did it: 1. A compiled binary that didn't require installing a language runtime and therefore didn't trigger tribalism. Devops teams back then were fragmented across Python, Ruby and Java. Every tool written in one language would instantly get cloned in the others. So we wanted to avoid that. 2. We were all Python/C programmers and Go gave us the best of both. 3. The syntax was "mainstream" without too many niche or radical concepts. We thought this would help build a large contributor community. 4. We had a nerdy gut feeling that it was cool and new, and we wanted to play with it. We felt that other engineers would also feel that way, and Docker would benefit from that aura.
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The question is: what happens when money stops flowing or misalignments appear between the business & the open source project? You better wish the community is big enough & organized to self-support itself.
i am increasingly skeptical of open source that is directly tied with vc
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Grégoire Mielle retweeted
Announcing @voidzerodev: a company building the next-generation unified toolchain for JavaScript. We are the creators and core-contributors of Vite, Vitest, Rolldown and Oxc - and we will unite these projects under a coherent vision to power the next generation of web applications. We have raised $4.6M in seed funding led by @Accel - read more in the blog post: voidzero.dev/posts/announcin…
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You don't need an overpriced "Frontend cloud", you've got Cloudflare
To celebrate Builder Day 2024, we’re shipping 18 updates inspired by direct feedback from developers building on Cloudflare. Here they are: cfl.re/3TMRupN #BirthdayWeek
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Grégoire Mielle retweeted
What overregulation feels like. AI progress is now skipping Europe
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Building APIs is hard. I just spent 30mins trying to understand why Google AI SDK could not parse a JSON API response: the server it was running on had its IP blacklisted, causing Google API to return dummy "Unauthorized" HTML pages instead of a proper JSON response 🥲
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