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Former L8 engineer at Meta, Microsoft and Atlassian, now writing and building solo on agentic engineering. Writes Kun's Field Notes and posts a lot about AI coding agents on X.

• github actions in my oss repos suddenly stopped running today i had opus 4.8 look into it, it spent ~$10 worth of tokens and insisted that either i haven't paid my bills or there's a github outage switched to grok 4.5 and just 3 minutes in with $1.2 worth of tokens, it found there's a surge of CI runs in my firstmate repos starving all the allowed runners across my account, cancelled a bunch of them, and everything's back on track this is just an anecdotal example but i've had many positive experiences like this. people ask me why i default to grok and this is why

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Prime Minister of Canada since March 2025; formerly governor of the Bank of Canada and the Bank of England.

• Workers in Thunder Bay built Hawker Hurricanes. Now, they're building the next generation of VIA Rail cars. Talking Canada’s next chapter over coffee at The Persian Man with @bryanadams.

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Creator of Homebrew, the macOS package manager, and a Swift developer.

• I find it interesting that everyone has noticed that only (and all of the) US AI providers are down but as yet nobody is suggesting this is possibly something more than your everyday Thursday outage.

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Chilean web engineer building web experiences since 2006; co-founder of Media Creators and writes at iolivares.com.

• Yesterday I worked for ~20hs with my agents using Cursor and Claude and when I moved to sleep time I turned on the "autonomous" skill to all my agents. Today, checking the work done, almost 40% was blocked because reasons and when I ask they say "Sorry, my work was left unfinished..." Weird... computation outage?

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Founder of Platformer, a newsletter on tech platforms and the people they affect, and co-host of the Hard Fork podcast at the New York Times.

• Not Spirit Airlines causing delays from beyond the grave
  Quoting@techmeme.comA bankruptcy court delays Google's $10M purchase of Spirit Airlines' data after former flight attendants sought assurances that their info would be removed (Alexander Gladstone/Wall Street Journal) Main Link | Techmeme Permalink

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Co-founder and CTO of Linear; previously an engineer at Uber.

• Suddenly many airlines are starting to offer free WiFi to all customers or loyalty program members. Starlink competition forcing them to do this?

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Professor of atmospheric sciences at Texas A&M; writes The Climate Brink with Zeke Hausfather.

• How climate change influences extreme weather

  How science shows us how warming makes heat waves, floods, hurricanes, and wildfires more likely or more severe — and why this science is becoming a major public-policy battleground.

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Writes Stratechery, a subscription newsletter on the business and strategy of technology, and hosts the Dithering and Sharp Tech podcasts.

• I’m gonna delete this thread because I think people complaining about airlines on Twitter are pretty lame, including myself! That said, I think the takeaway is that the reason I was upset is precisely because of dashed expectations. If this were American I would have shrugged my shoulders. So I guess that’s a compliment to United, but also a reminder that it’s risky to advertise things (like Starlink) when you can’t yet confidently deliver on them. Anyhow, 28B on Southwest. Let’s go! 😅

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Data scientist at Our World in Data and author of Not the End of the World. Writes By the Numbers, working through energy and climate questions with the numbers in front of them, and revising in public when they say something unexpected.

• Technology can cut plane contrails by two-thirds. Getting airlines to use it isn't so easy

  Flights that followed an avoidance path cut contrails by almost two-thirds. But getting dispatchers and pilots comfortable with these routes will be crucial.

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President of the United States, the 45th from 2017 to 2021 and, as of 2026, the 47th; before politics a New York property developer who ran the Trump Organization, and the host of The Apprentice from 2004 to 2015.

• To all Airlines, Pilots, Drug Dealers, and Human Traffickers, please consider THE AIRSPACE ABOVE AND SURROUNDING VENEZUELA TO BE CLOSED IN ITS ENTIRETY. Thank you for your attention to this matter! PRESIDENT DONALD J. TRUMP

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Engineering leader and writer on web operations and resilience engineering; formerly SVP of Technical Operations at Etsy and co-author of Web Operations.

• I paid zero attention to tweets about the FAA NOTAM outage today. Speculation from a distance and hindsight-driven attempts at being insightful in these situations are never worth the cost on attention.

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