Enthusiastic entrepreneur @sebastiansoft • OpenSource Evangelist • Consultant for large-scale web app development • ReactJS | GraphQL | NodeJS • Fluent in UX

Hirschberg a.d.B., Germany
Joined August 2008
Sebastian Werner retweeted
Introducing tsrs: a Rust port of the TypeScript compiler 🦀 We are not forking TypeScript! ◆ In close collaborating with the TypeScript team ◆ Up to 8x faster than TS 7.0 & ~70% less memory ◆ Runs in WASM, so it works in your browser & on Workers ◆ Soon part of the Oxc toolchain npx tsrs blog.cloudflare.com/typescri…
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Sebastian Werner retweeted
Most high-impact bugs are still authorization issues, says one top GitHub researcher. When it comes to AI, a fast car still needs a good driver. We ask them about their method 👇 github.blog/security/how-one…
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Sebastian Werner retweeted
Crazy how this was a joke example of an “impossible task” that AI would never be able to do. Not even 4 years ago!
Do you think we can use AI and ML to rewrite the TypeScript compiler in Rust? #Web3
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Sebastian Werner retweeted
We made a skill for assessing the risk of merging a PR: /merge-risk This addresses the code review bottleneck by helping devs trust the agent for lower risk changes. It grades risk across 5 categories: alignment, impact, verification, rollback cost, and error detection. - Alignment: does code follow the PR description and related tickets? - Impact: what is the blast radius, and does it touch sensitive code paths? - Verification: does the change include end-to-end verification? This means computer use, screen recordings, before/after screenshots... going beyond unit test coverage. - Rollback cost: once it's shipped, how trivial is it to revert? @mattpocockuk calls this a "two-way door" vs. a "one-way door." - Error detection: are errors reported, logged, or simply swallowed? Try it out: > npx skills add warpdotdev/common-skills --skill merge-risk
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Sebastian Werner retweeted
ai has made me realize that most of my ideas are great but i don't have the patience to stick with them long enough
AI has made me realize that most of my ideas are terrible.
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using a gemini model for coding
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Sebastian Werner retweeted
Jedes Teller- und Tassenset wird hier in Peking komplett in Plastikfolie eingeschweißt serviert! Auf Nachfrage wurde uns erklärt, dass das Geschirr nach jeder einzelnen Benutzung von externen Dienstleistern abgeholt, gespült und aufs Neue in Plastik verpackt wird. Und in Deutschland? Hier sperrt man 1,8 km Straße für ältere Dieselfahrzeuge (Hamburg), schikaniert die eigene Bevölkerung mit immer neuen Auflagen und kommt mit Vorschriften, Verboten und CO2-Abgaben um die Ecke. Während wir das "Weltklima retten", wird in einer Millionenmetropole wie Peking für jedes Essen kiloweise Plastik verfeuert! Von der Mülltrennung oder sauberem Straßenbild ganz zu schweigen. ​Diese absurde Realität zeigt doch eines ganz deutlich: Mit unserem moralischen Alleingang retten wir gar nichts. Wir regulieren die eigene Wirtschaft nur kaputt. Umweltschutz mit Vernunft? Ja, klar. Aber dieser deutsche #Klimairrsinn, der dem eigenen Volk viel zu viel abverlangt und nichts bringt, während der Rest der Welt schmunzelnd weitermacht wie bisher, ist an Lächerlichkeit kaum zu übertreffen! #Klimaschutz #Klimawandel #Politik #Deutschland
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Sebastian Werner retweeted
Frankreich hat kostenlose öffentliche Gesundheitsversorgung, kostenlose öffentliche Bildung, eine reduzierte Arbeitswoche von 35 Stunden, Sozialpläne für Arbeitslose, Mietpreisgesetze, kostenlosen Kindergarten und verlängerten Mutterschutz, Subventionen für die Industrie, den Verkehr, verstaatlichte Energieunternehmen, Regulierungen und Steuern auf Kohle sowie strenge Umweltschutzgesetze. Die Staatsquote kommt auf 57,5 %. Frankreich müsste das Traumland der Linken sein und trotzdem gehen sie auf die Straße und zünden ALLES an. Die Sozialisten sind unersättlich. Linke Ideologie führt zu Chaos und disfunktionalen Gesellschaften. In Deutschland wird die Linke nun Berlin in ein Dritte-Welt-Land verwandeln. Viel Spaß, liebe Linken-Wähler.
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Sebastian Werner retweeted
😂
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Sebastian Werner retweeted
Every once in a while, some unsuspecting country's domain economy goes vertical 😂 .𝚌𝚘 → Colombia .𝚒𝚘 → I/O → Island Ocean .𝚖𝚍 → Markdown → Moldova .𝚛𝚜 → Rust → Serbia .𝚊𝚒 → AI → Anguilla .𝚜𝚒 → SI → Slovenia
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Sebastian Werner retweeted
In the next version of Bun bun check gets 1.7x - 7x faster
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Sebastian Werner retweeted
A decade ago, after struggling on a hard problem in React Fiber, I spent several days designing and iterating on a fuzz tester that eventually uncovered a bunch of subtle cases that helped me converge on a solution. Today, a fuzz tester simply appeared in my codebase. Poof.
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Sebastian Werner retweeted
Es ist kein Protest, Geschäfte zu plündern, auf Menschen einzuschlagen oder Autos anzuzünden. Es ist einfach nur dumme Kriminalität.
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Sebastian Werner retweeted
Poland would be a great choice for the first European Omacon conference! I feel embarrassed to say I've not yet been. This would be a great excuse to correct that mistake!
🇵🇱 Warsaw is Poland's biggest city and it is completely safe at 1am at night No violent junkies, no drug dealers, no street thugs hanging around harassing women (and men), no pickpockets (nor in the day btw) No shady people hanging around the train and metro stations Just people living chill together and police enforcing safety You know like we used to in Western Europe? There's a lot to learn from Poland
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Sebastian Werner retweeted
🇵🇱 Warsaw is Poland's biggest city and it is completely safe at 1am at night No violent junkies, no drug dealers, no street thugs hanging around harassing women (and men), no pickpockets (nor in the day btw) No shady people hanging around the train and metro stations Just people living chill together and police enforcing safety You know like we used to in Western Europe? There's a lot to learn from Poland
We climbed Krakus Mound in Krakow with @staskulesh!!! Very cool I think it's Pagan but nobody really knows why it's here, it's a man made "mound", like a pile of land It's very old! 🇵🇱
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Sebastian Werner retweeted
🚀 DeepSeek-V4.1-Flash-1017 is here! Stronger benchmark performance, faster task completion, and shorter outputs than the previous version—a Pareto improvement in performance and cost. Now live on our website, app, and API. 🛠️ Optimized for @DeepSeekHarness, Tencent CodeBuddy, WorkBuddy, and more. Upgrade to DeepSeek Harness v0.2.1-rc.1 or later for the best experience with the new model. 1/4
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Sebastian Werner retweeted
This Mentality is Everythiiiiiiiiiiiiiiiing.
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Sebastian Werner retweeted
Introducing React Bits 2.0 The library you know, rebuilt. Components now look sharper, move smoother and start from presets, and our design tools were fully rebuilt from scratch. 216 animated React components, free and open source as always. reactbits.dev
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Sebastian Werner retweeted
Since we started offering employee profit sharing in 2020, we've paid out over $24,000,000 to employees. We've never offered stock options. Not a fan of future maybe money. We pay real cash to real people so they can spend it on real things right now. When you choose to be our customer, you're making this possible. You're supporting an independent, fully customer-funded business that shares its success with the people who make it happen. You don't need investors, stock options, or complicated cap tables to share your success. You can just share the profits. It really can be that simple. If you're curious, this is how the profit sharing plan works: basecamp.com/handbook/benefi…
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Sebastian Werner retweeted
trying a new approach to upcoming blog post - dictation to capture the things i want to talk about (wispr) - pass that into [pick your favorite agent] to generate an outline with notes - take that outline+notes and dump it into your [favorite writing tool] i feel like the hardest part of writing is really collecting and organizing your thoughts and this is making that so much easier
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