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Antoni Kępiński

@xxczaki.com
78 followers 274 following 69 posts

software engineer at kombo.dev, founder of parsify.eu www.xxczaki.com | berlin

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Antoni Kępiński @xxczaki.com · 24/09/2026
I think some people may be spending too much time considering whether coding is solved instead of just building shit.
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Laurie Voss @seldo.com · 17/08/2026
To anybody who's just accepting Claude's output without rewriting it and is worried that now we'll know you're using Claude: don't worry, it was already obvious. daringfireball.net/2026/08/anthropi…
daringfireball.net
Anthropic’s ‘Watermark’ Text Adulteration in Claude Is a Perversion of Writing
It’s unacceptable for a tool to sacrifice an iota of clarity, coherence, meaning, quality, etc. for the purpose of embedding hidden clues within the text to suggest its provenance. The idea that anything other than *my* needs should factor into the generation of text *for me* is patently offensive.
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nate moore @natemoo.re · 13/08/2026
An Onion headline that's been edited to say "[JavaScript]: Well, Well, Well, Not So Easy To Find A [Programming Language] That Doesn't Suck Shit, Huh?"
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Antoni Kępiński @xxczaki.com · 09/08/2026
First time in DC, traveled from NYC using Amtrak Acela – love it so far!
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Antoni Kępiński @xxczaki.com · 05/08/2026
Started heavily using Codex in the recent days and compared to Cursor/Claude Code: - it's worktree orchestration is great - the priority view sidebar is overrated and poorly done (doesn't persist after restart) - MCPs are terrible, just like in Cursor (randomly stop working)
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Grady Booch @booch.com · 02/08/2026
In my work, as in commercial software engineering, we also recognize the presence of something we call “this AI is making shit up again”.
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Nicole Sullivan @nicolesullivan.bsky.social · 29/07/2026
It’s so nice working somewhere that design is valued so much that execs can tell when something is designed poorly. The pushback is real. And welcomed.
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Antoni Kępiński @xxczaki.com · 27/07/2026
Just read DHH’s post on the Romani people – not linking it here deliberately since it’s not worth your time. I think it’s funny how bad it is, both in terms of the analogy it uses, but also how little it brings into the discussion. It’s a worthless opinion, nothing more.
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Antoni Kępiński @xxczaki.com · 19/07/2026
Forgot to post some pics earlier from the city I’m staying at this month 🇺🇸🗽
Skyline of Manhattan as seen from WilliamsburgSkyline of Manhattan as seen from Jersey CityStatue of Liberty photographed from the Staten Island Ferry
The Vessel
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patak @patak.cat · 16/05/2026
Heartbreaking. And a wake-up call. It is no longer about being difficult to find a way to sustain yourself through your work online. It is no longer sustainable to keep a website up now. Axel has done so much for the web and all of us. Buy one of his books if you can. We've learned so much from him.
2ality blog: temporarily offline

Dear visitor! Two things happened recently:

- The income from my book sales went from being enough for me to live off (2024) to zero (2026).
- The traffic to my blog and my books (which were free to read online) increased beyond what I can currently afford. Virtually all of it comes from AI crawlers, so there is no ad income.

Therefore, I’m taking my blog and my books offline so that I can decide what to do next – especially w.r.t. AI companies stealing my work. This may take a while (think months): I don’t have any energy to deal with this right now.

I apologize for this (hopefully temporary) inconvenience to my human readers! You can still buy my books at Payhip.

Axel Rauschmayer
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Antoni Kępiński @xxczaki.com · 12/05/2026
If you maintain OSS projects and use the Tanstack situation solely to promote that you are "safe from supply chain attacks" without providing any evidence/making clear disclaimers, you are a huge POS.
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Barack Obama @barackobama.bsky.social · 13/04/2026
The victory of the opposition in Hungary yesterday, like the Polish election in 2023, is a victory for democracy, not just in Europe but around the world.
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kat @katproto.girlonthemoon.xyz · 27/03/2026
wow this was a brutal read kennethreitz.org/essays/2026-...
kennethreitz.org
Open Source Gave Me Everything Until I Had Nothing Left to Give
I thought I was having a spiritual awakening. I was having a psychiatric emergency. I was at a tech conference in Sweden when it started. I hadn't slept in...
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Antoni Kępiński @xxczaki.com · 12/03/2026
Blatant betrayal of Europe’s safety. tvpworld.com/92060333/naw...
tvpworld.com
Nawrocki vetoes Poland’s €44 bln EU defense loan plan
President Karol Nawrocki has announced he will veto legislation paving the way for Poland to tap nearly €44 billion in EU defense loans.
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TC39 @tc39.es · 11/03/2026
ECMAScript Euphoria! 🎉 We don't always post when a single proposal advances, but when we do, it's Temporal -> Stage 4. Just days shy of 9 years from Stage 1, a herculean effort on the part of many champions, delegates, invited experts, and contributors, past and present. Thank you all! 🙌
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Tim Chevalier @youwere.cool · 23/02/2026
My company @igalia.com is hiring an Open Source Product Marketing Manager. www.igalia.com/jobs/product... Igalia is a worker-owned cooperative based in A Coruña, Spain. All positions are 100% remote. Igalia can potentially sponsor visas to emigrate to Spain.
igalia.com
Open Source Product Marketing Manager | Igalia - Open Source Consultancy and Development
We’re looking for someone to help spread the word about our Open Source projects to the whole world.
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Wes Bos @wesbos.com · 23/02/2026
Oh noooo, the company that extracted our data for their models is having others extracting data for their models
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Antoni Kępiński @xxczaki.com · 17/02/2026
Chrome extension idea: goes through your feed and automatically blocks people writing large scale "trust me bro" economic/industry predictions.
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Peter Kröner @sirpepe.bsky.social · 09/02/2026
Boldly and loudly predicting the future should be a disqualifying indicator of poor judgement in general. You'd only set yourself up for failure like that if you're a dunce or a propagandist.
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Paweł Grzybek @pawelgrzybek.com · 26/01/2026
Last week I lost my job. It took me a while to process... If you or your company needs an experienced full stack developer who understands how the web works, knows modern tech, communicates well, please reach out. My CV: pawelgrzybek.com/cv/ I'd appreciate if you could share. Thank you.
pawelgrzybek.com
CV | pawelgrzybek.com
I’m a software developer with 15 years of professional experience, specialising in building performant and accessible full-stack web applications. I’m passionate about web standards and ethical design...
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Antoni Kępiński @xxczaki.com · 25/01/2026
How Cursor Bugbot looks at me after posting 30 comments about the same issue
Sam Altman's face and text

please bro
we're so close to AGI
just $20,000,000,000 more dollars bro
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Antoni Kępiński @xxczaki.com · 21/01/2026
@isaacs.bsky.social Hey, did your Twitter get hacked? Talking about x.com/izs/status/2....
x.com
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kepano @stephango.com · 13/01/2026
As hyped as Claude Code + Obsidian is, I have no desire to upload my personal unencrypted vault data to Anthropic or anyone else. I hope that the ideas of private inference and confidential computing that Moxie described take off. It's how all LLMs should work.
Confidential computing
This is the domain of confidential computing. Confidential computing uses hardware-enforced isolation to run code in a Trusted Execution Environment (TEE). The host machine provides CPU, memory, and power, but cannot access the TEE’s memory or execution state.

LLMs are fundamentally stateless—input in, output out—which makes them ideal for this environment. For Confer, we run inference inside a confidential VM. Your prompts are encrypted from your device directly into the TEE using Noise Pipes, processed there, and responses are encrypted back. The host never sees plaintext.

But this raises an obvious concern: even if we have encrypted pipes in and out of an encrypted environment, it really matters what is running inside that environment. The client needs assurance that the code running is actually doing what it claims.
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Chris Coyier @chriscoyier.net · 10/01/2026
I like this setting for VS Code from Ben Frain. JUST show the vertical line for the current indentation, not all of them ``` "workbench.colorCustomizations": { "editorIndentGuide.background1": "#00000001", "editorIndentGuide.activeBackground1": "#ff9900" } ``` benfrain.com/vs-code-high...
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Antoni Kępiński @xxczaki.com · 02/01/2026
Anyone knows if stuff like this is Claude Code's fault or Cursor/VS Code's?
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Antoni Kępiński @xxczaki.com · 01/01/2026
ViroReact wasn’t working, so I slopped a simple native module for ARKit to enable distance measurements similar to what the built-in Measure app offers. Quite happy with how it turned out – maybe I will clean it up and open source it!
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Antoni Kępiński @xxczaki.com · 28/12/2025
App Store Connect: "please upload a 6.5-inch screenshot" Me: *opens the iPhone Air simulator, takes the screenshot and uploads it* App Store Connect: "wrong size"
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Josh W. Comeau @joshwcomeau.com · 26/12/2025
PSA: if you have a business pitch for someone, or want them to hire you as a contractor, your chances of success decrease by 100% if you have ChatGPT write the message for you. 😅
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Antoni Kępiński @xxczaki.com · 15/11/2025
Finally have a properly mounted UniFi AP in my new apartment
wall-mounted U7 Pro
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Darcy Clarke @darcyclarke.me · 10/10/2025
Why are @github.com tokens allowed to have no expiry but @npmjs.bsky.social are about to make every IT team's lives a living hell? This is just more security theatre. Think harder @microsoft.com.
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Malte Ubl @industrialempathy.com · 06/10/2025
To honor a great friend and open-source pioneer Mikeal Rogers we're organizing a "conf" and charity auction. I'll be auctioning an exclusive wagyu BBQ at my house for up to 15. Join us and ideally offer more donations! All proceeds go to his wife and 2 kids an-event-mikeal-would-have-liked.com
an-event-mikeal-would-have-liked.com
An Event Mikeal Would Have Liked
Memorial charity event celebrating Mikeal Rogers' life - November 12, 2025
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Antoni Kępiński @xxczaki.com · 19/09/2025
Worth monitoring
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sam henri gold @samhenri.gold · 06/09/2025
Did you know your MacBook has a sensor that knows the exact angle of the screen hinge? It’s not exposed as a public API, but I figured out a way to read it and make it sound like an old wooden door.
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Antoni Kępiński @xxczaki.com · 06/09/2025
Nice to be able to call this place home
Inside the Bundestag domeTop of the Brandenburger Tor with the Weltballon in the airFernsehturm Corner of the Bundestag viewing deck with a German flag
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Antoni Kępiński @xxczaki.com · 02/09/2025
This is probably a long shot, but if any of my virtual friends here has/knows an apartment in Berlin that will be free from November (or around that time), I would love to know more! RTs welcome!
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isaacs @isaacs.bsky.social · 31/07/2025
Big news! I'm available for hire! If you have JavaScript/TypeScript you want written, and you have budget for an ambitious and highly skilled practitioner with over 20 years of experience doing that, including leading teams, communities, and execs, hit me up. izs.me (RT please)
izs.me
Isaac Z. Schlueter
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Antoni Kępiński @xxczaki.com · 15/08/2025
Just published a simple MCP server for accessing @vscode.dev/Cursor's Local History. Can be useful e.g. for file recovery. github.com/xxczaki/loca...
github.com
GitHub - xxczaki/local-history-mcp: MCP server for accessing VS Code/Cursor Local History
MCP server for accessing VS Code/Cursor Local History - xxczaki/local-history-mcp
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Antoni Kępiński @xxczaki.com · 12/08/2025
WIP
stickers on my macbook
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Mikhail Popov @mpopov.com · 09/08/2025
If you’re going to attach AI slop as unnecessary visual supplement to your post and can’t be bothered to even write the alt-text, just copy and paste the prompt you used to generate it.
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Antoni Kępiński @xxczaki.com · 29/07/2025
Friday was my last day at omnicalculator.com – I enjoyed my time there a lot and feel grateful for taking part in so many different initiatives. Starting in August, I’m moving to Berlin to work with the amazing team at kombo.dev (YC S22). Super stoked about it!
kombo.dev
Kombo - All your integrations with one API
Integrate Kombo once – offer hundreds of integrations off-the-shelf to your customers.
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tierney cyren @bnb.im · 25/07/2025
fun news! I was laid off from Twilio. going to take this weekend to chill out, and will start looking for roles next week. if you or someone you know is looking for staff/principal level Developer Advocacy, OSPO, dev infra, or similar roles pass them along! reposts from tech folks appreciated <3
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Antoni Kępiński @xxczaki.com · 29/06/2025
June 28 marked my last day in Warsaw, coming short of 3 full years in the city. I enjoyed it a lot, but it's time for some changes – I will be staying in Poznań throughout July before moving to <redacted> in August. Will share more info soon, super excited about it!
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Zach Leatherman @zachleat.com · 23/06/2025
we fully admit that our plagiarism machine deprives artists of credit and compensation but you have to admit that it’s an entirely different phenomenon with open source software authors because they have never received credit or compensation
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Node.js @nodejs.org · 20/06/2025
We’re heartbroken by the loss of Mikeal Rogers, a key figure in the Node.js ecosystem and a force behind what makes this community what it is. To help preserve his legacy, we’ve opened a GitHub repo for stories, photos, and memories: github.com/nodejs/mikeal 💚 Thank you, Mikeal. hubs.la/Q03t0DVL0
hubs.la
GitHub - nodejs/mikeal: In light of the the contributions that Mikeal made to Node.js and the larger ecosystem and his recent passing this repository will provide a place for people to contribute thei...
In light of the the contributions that Mikeal made to Node.js and the larger ecosystem and his recent passing this repository will provide a place for people to contribute their condolences and mem...
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Katerina Marchán 🐈 @zkat.tech · 20/06/2025
My hypothesis here, from what I’ve seen, from what major genAI companies have stated, publicly, and from having worked in one of the very epicenters of it at Microsoft, is that the technology requires immense, ongoing investment and is simply not fundamentally profitable. It’s a house of cards
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Cholingo @cholingo.bsky.social · 16/06/2025
I’ve seen too many movies to know this is not true
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lauren @lauren.rotatingsandwiches.com · 12/06/2025
at one point it's possible "common sense" meant something close to the original intent of the words but it 100% now just means "some bullshit i saw on my phone"
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James Snell @jasnell.me · 10/06/2025
The open source ecosystem, and the Node.js project in particular, owes a debt of gratitude to Mikeal that few comprehend. He's already sorely missed.
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Antoni Kępiński @xxczaki.com · 03/06/2025
achievement unlocked: spare wheel
flat tirereplacement in progressspare wheel on, all set
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