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Armin Ronacher

@mitsuhiko.at

13K followers 220 following 1.8K posts

Creator of Flask • earendil.com ♥︎ writing and giving talks • Excited about AI • Husband and father of three • Inhabits Vienna; Liberal Spirit • “more nuanced in person” • More AI content on https://x.com/mitsuhiko More stuff: https://mitsuhiko.at/

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Armin Ronacher @mitsuhiko.at · Nov 11

Hi! In a prior life I built a lot of Python tools and libraries. I created Flask, Werkzeug, Jinja2 and many more. I worked on Sphinx and Pygments. In the years since I did a lot more Rust. For the last 10 years I spent my life working on @sentry.io.

You can find my blog here: lucumr.pocoo.org

Blog

lucumr.pocoo.org

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Armin Ronacher @mitsuhiko.at · 1d

That is what confuses me. I did not really comprehend how collections work. Is it still a vDOM and the component re-runs on update()?

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Armin Ronacher @mitsuhiko.at · 1d

As an outsider I'm a bit confused now. Is Remix 3 trying to be a new take on solid.js? The code examples make it look like it does not use react at all? (Or at least not sure how that would work with react)

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Armin Ronacher @mitsuhiko.at · 2d

If I remember correctly last time I asked he already declined.

Armin Ronacher @mitsuhiko.at · 2d

I still really want to record a video with me and another programmer who is not getting value out of AI. Goal is to have a good discussion about our approaches and learnings.

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Armin Ronacher @mitsuhiko.at · 2d

That seems pretty crazy.

Armin Ronacher @mitsuhiko.at · 2d

Now I want to know: why did it take Canada until 2023 to join the Apostille Convention?

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Reposted by Armin Ronacher

Gergely Orosz @gergely.pragmaticengineer.com · 5d

For an AI startup today, what language would be the best choice: Python, TypeScript, Go or Rust?

Armin Ronacher is a great person to answer: a longtime open source contributor, creator of Flask (a Python fullstack framework), and he's building his AI startup. Spoiler: he's not using Python for it.

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Armin Ronacher @mitsuhiko.at · 5d

The @pragmaticengineer.com episode with me is online. Talking all about errors, programming languages and agents. www.youtube.com/watch?v=45kV...

Python, Go, Rust, TypeScript and AI with Armin Ronacher

YouTube video by The Pragmatic Engineer

www.youtube.com

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Armin Ronacher @mitsuhiko.at · 9d

I don’t let it generate tests straight away. That only comes later when I like what it did.

Armin Ronacher @mitsuhiko.at · 9d

I can wrap my head around the model much better than react’s modern one. Just a much simpler thing.

Armin Ronacher @mitsuhiko.at · 9d

I recorded a one hour video of me implementing a thing for one of our code bases with codex and claude. It might be boring in the first 15 minutes, but I went through most of it.

youtube.com/watch?v=X8M6...

Armin Ronacher ⇌ on X: "Weekend is coming up, so might take some time to share some agentic coding stuff on a video or blog post. Anything you're curious about in particular?" / X

Weekend is coming up, so might take some time to share some agentic coding stuff on a video or blog post. Anything you're curious about in particular?

x.com

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Armin Ronacher @mitsuhiko.at · 11d

KK. I will cover it, but it's really just: that I generate the bindings from the OpenAPI yaml. I don't spec it out, the agent creates those changes and then leverages the generated binding for the other code it writes.

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Armin Ronacher @mitsuhiko.at · 11d

By from spec you mean that I write the OpenAPI spec by hand? (I don't). So I'm not entirely clear what you mean here.

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Armin Ronacher @mitsuhiko.at · 11d

Weekend is coming up, so might take some time to share some agentic coding stuff on a video or blog post. Anything you're curious about in particular?

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Armin Ronacher @mitsuhiko.at · 13d

The reality is that I would not have built this project without AI. I most likely focused something else in the meantime and buy a solution for this for now. That I could build this and shape it to work exactly like I want at this stage of the project is something that AI enabled.

Reposted by Armin Ronacher

Ryan Carniato @ryansolid.bsky.social · 13d

Going after OSS projects that are openly governed isn't going to do what you want it to. Vercel makes its money from its hosting platform and paid products. OSS is not a paid product and while contributes goodwill doesn't directly impact the bottomline. And these project's reach well exceed Vercel.

tierney cyren @bnb.im · 14d

fuck vercel, fuck Next.js, fuck Svelte, fuck Turborepo, fuck SWR, fuck SWC

Posing with the architect of a genocide for sales leads is an insane and deeply immoral stance

these projects cannot separate themselves from the CEO of the company who funds them

Tweet from Guillermo Rauch, featuring a picture of him and Benjamin Netanyahu, and tweet text:

“🇺🇸 🇮🇱 🇦🇷

Enjoyed my discussion with PM Netanyahu on how AI education and literacy will keep our free societies ahead.

We spoke about AI empowering everyone to build software and the importance of ensuring it serves quality and progress.

Optimistic for peace, safety, and greatness for Israel and its neighbors.”

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Armin Ronacher @mitsuhiko.at · 13d

I build differently with AI. That really cannot be compared. I also don’t know how to best measure this.

Armin Ronacher @mitsuhiko.at · 14d

No libs. Just execute all migrations that are not by number in my _migrations table and a pg advisory lock around it.

Armin Ronacher @mitsuhiko.at · 14d

We will see in a few days :)

Armin Ronacher @mitsuhiko.at · 14d

Nope.

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