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Mario Zechner
x.com
imma regret saying this. but. pi 3.14. next week friday. just a new harness.
regret friday harness
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least often elsewhere. Posts are matched on those words alone —
nothing here is a summary of this one.
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20 September
Software engineer who writes about low-level and systems programming at nullprogram.com; author of the Elfeed feed reader, the Endlessh SSH tarpit and Enchive.
19 September
Writes The Pragmatic Engineer, the software-engineering newsletter, and wrote The Software Engineer's Guidebook. Formerly an engineering manager at Uber, and at Microsoft/Skype and Skyscanner before that.
Their words
having the very best AI model and harness doesn’t result in better/faster execution - in fact it slows you
Show the whole quote
@GergelyOrosz on X x.com
18 September
Co-creator of Django and creator of Datasette; writes daily at simonwillison.net.
Indonesian software engineer, educator and engineering manager at Zero One Group; open-source enthusiast writing at ripandis.com.
Security technologist and author of books including Applied Cryptography and Data and Goliath; writes the Schneier on Security blog and the monthly Crypto-Gram newsletter.
Librarian, technology instructor and writer in rural Vermont; longtime community manager at MetaFilter and author of a book on the digital divide.
Friday afternoon reminder to not empty your inbox at the expense of someone else's. This is the weekend I get my wood in (i.e. have pellets delivered) so I'm thinking of chillier days even though it's 70° outside. Trust me, you'll feel better if you make some plans for what's ahead, however you interpret that. Have a good weekend. Image credit: Library of Congress, on Flickr Commons flickr.com
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Journalist and author of The Art of Noticing; writes the newsletter The Art of Noticing (TAoN) on attention, creativity and the everyday.
Analyst of the business of technology; writes Asymco on Apple, disruption and, latterly, micromobility.
American science fiction novelist (Old Man's War, Redshirts, The Kaiju Preservation Society); has run the blog Whatever since 1998.
Co-founder, chairman and chief investment officer of Ritholtz Wealth Management. Hosts the Masters in Business podcast for Bloomberg and wrote How NOT to Invest.
10 Friday AM Reads My back in NY morning reads: • Why Are Valuations Falling in a Bull Market?: Ben Carlson runs the year’s tape — mortgages from 6% to 7%, the 10-year from 4% to 5%, inflation from 2.4% to 3.4%, oil from under $60 to ove…
inflation Related
Criminal defence lawyer in New York; writes Simple Justice, mostly about how criminal law works in practice rather than in theory.
Seaton: Friday Night Dance Fever My kids have a school dance tonight. It’s my son’s first of middle school and one of the last my daughter will see at this particular grade level. And of course, because I’m a sucker for this sort of thing, I’m chaperon…
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17 September
Venture capitalist and founder of Theory Ventures, previously a partner at Redpoint. Writes a near-daily blog on startups, SaaS metrics, data and AI.
The better the harness, the better the business. Berkeley published a study this week showing harnesses, the systems that control AI agents, set the price of an answer. The right harness cuts the cost of the same result by 71% without a loss of accuracy. Related
Founder and CEO of Wolfram Research, creator of Mathematica and Wolfram|Alpha, and author of A New Kind of Science.
After a hiatus brought on by tragedy, I'm planning to return to livestreaming tomorrow (Friday) ... and will start with a personal update and AMA. What would people like to ask about? Related
Systems and developer-tools engineer at Cloudflare as of 2026, on durable infrastructure for AI agents; worked on React and PartyKit before that. Writes at sunilpai.dev.
it’s a great city and I do regret not having 6 months in a loft as a dumb 20 something getting into trouble Related
Venture capitalist and founder of Theory Ventures, previously a partner at Redpoint. Writes a near-daily blog on startups, SaaS metrics, data and AI.
The Harness Margin Opportunity A UC Berkeley study finds the harness sets the price of an answer : GPT-5.6 Sol costs 71% less on Pi than on Claude Code, the same model returning the same result, & none of the 42 harness comparisons shows a statistica…
Anthropic OpenAI Related
Engineer at Vercel Labs as of 2026. Ships a steady stream of small developer tools — agent-browser, portless, json-render, native-sdk, the v0 SDK — and lists every one of them at ctate.dev.
Their words
Every agent harness can now use Jev npm install -g ai-cli → ask yes/no questions → choose between options → score against your criteria https://t.co/dpgmcdCj8F
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x.com
16 September
Economist and Nobel laureate. Wrote a New York Times column for 25 years until December 2024 and now publishes several times a week on Substack.
15 September
Writer and former McKinsey/BCG strategy consultant; author of The Pathless Path and Good Work, about leaving the default career track. Publishes the Boundless newsletter and podcast.
I think the most interesting thing about the business world is that it presents infinite things that “make sense” based on profit and then as a person you need to figure out where your lines are, ethically and morally and then also the ultimate test - what you won’t regret Related
14 September
British comics writer and novelist (Transmetropolitan, Planetary, The Authority, Gun Machine). Keeps a public daily notebook logging what he reads, watches and listens to.
Programmer, teacher and speaker; long-time Microsoft developer-community figure, host of the Hanselminutes podcast and author of the hanselman.com blog.
13 September
Moroccan senior frontend developer writing at smakosh.com; builds side projects and client work under Smakosh LLC.
You could earn more by quitting your boring job at a big corp and start going after bug bounties with higher rewards using a good harness from the same company Related
Dutch bootstrapper who builds and runs their internet startups alone — Nomads.com, Remote OK, Hoodmaps, Photo AI and Interior AI — and has written about it at levels.io since 2013. Posts as @levelsio.
startups
Their words
In the most early adopting tech pioneering place that's Silicon Valley new startups aren't even building software anymore And it's debatable if anyone will actually need a custom harness or it won't just be generically offered by the AI frontier companies So software is mostly dead and hardware it is
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levels.io
12 September
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.
every model provider should learn from meta's pricing model for muse spark, with fully transparent subsidization labeled for the contributor tier stop doing "in order to use our model at a good price, you must use our harness which secretly collects your data and/or upload your codebase" meta clearly proved there's a way to collect training data without relying on a harness. just be transparent about when you collect data vs not, clearly communicate how much the data is worth, and give the choice to the user and i really don't need your harness. i already have SO MANY state of the art harness… Related
Writes The Pragmatic Engineer, the software-engineering newsletter, and wrote The Software Engineer's Guidebook. Formerly an engineering manager at Uber, and at Microsoft/Skype and Skyscanner before that.
11 September
Security technologist and author of books including Applied Cryptography and Data and Goliath; writes the Schneier on Security blog and the monthly Crypto-Gram newsletter.
Librarian, technology instructor and writer in rural Vermont; longtime community manager at MetaFilter and author of a book on the digital divide.
Friday afternoon reminder to not empty your inbox at the expense of someone else's. My "big plans" today involve sawhorses and telephones and catching up on my newspaper reading. Argue all you want about AI, the analog world will be here when you're done, mostly. Schedule those emails. Have a good weekend. Image credit: State Library of New South Wales, on Flickr Commons flickr.com
Related
Writes Stratechery, a subscription newsletter on the business and strategy of technology, and hosts the Dithering and Sharp Tech podcasts.
9 September
Mathematician at UCLA, working mainly in harmonic analysis and partial differential equations. Writes What's new, a long-running blog on their research, open problems and expository notes.
Javier Gomez-Serrano will give a special lecture at Harvard this Friday on recent developments in fluid mechanics: cmsa.fas.harvard.edu
Related
AI research engineer working on large language models. He writes the Ahead of AI newsletter and is the author of Build a Large Language Model (From Scratch).
8 September
Chilean web engineer building web experiences since 2006; co-founder of Media Creators and writes at iolivares.com.
Your Harness matters, you need to build it or follow something, but you can't leave it to chance. If you are starting with AI Engineering, be sure you learn what is a harness, this is a good video to do understand why it matters. My personal recommend is: try to understand 40% of what is, then try to build it, and continues learning from there. Quoting @ycombinator Harnesses often get dismissed as just scaffolding, just prompt engineering, and not real research. But that couldn't be farther from the truth. The same model weights that score 30% on ARC-AGI score 95% with a better harness. So we gathered a group of researchers and founders working at the frontie… Related
Creator of Ruby on Rails, CTO of 37signals, and creator of Omarchy.
Recommends their own rcmnd.app
Omarchy
Their words
Omarchy is going to be the best place to get every major AI harness and tool, configured with minimal effort
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x.com
6 September
Brazilian-American staff software engineer working on platforms, AI and developer productivity. Writes about engineering and his setup at ivansantos.me.
I had a great time building a @cursor_ai SDK provider for @opencode 2. If you got to use Cursor for free this past month, this is for you! Same harness I already live in, now with Cursor’s models under /models. Related
5 September
Economics professor at the University of California, Berkeley and a former Deputy Assistant Secretary of the US Treasury. Author of Slouching Towards Utopia and writer of the Grasping Reality newsletter.
I asked a local instantiation of google/gemma4:31b-mlx to introduce itself to my new research assistants and point at its own workspace. What came back was a meditation on Plato, salamander brains, and why you should treat it like an eccentric roommate: **ThothBot Makes an Appearance in My RA-Group Telegram Chat: FRIDAY FOG & FLATLANDS** Living & working in Berkeley, California: An AI writes an introduction to my research assistants, & PanGram/SubStack grades it 100% not-slop; or, what... 1/ Google Related
4 September
Writer and programmer; co-founder of the software studio Postlight and author of the Bloomberg Businessweek essay What Is Code?
If you’re a Flatbush-area mutual aid type, this self-organizing distro happens every Friday at 5PM across the street from Kings Theatre. If you want to help show up and hand out food or clothes, or just donate via Venmo. Or cook! Related
Designer, product manager, YouTuber and developer who has written about technology at Birchtree since 2010. He makes the Quick Reviews and Quick Notes apps and the A Better Computer YouTube channel.
Little Friday Quick Reads update: you can sort your queue in a few new ways. Coming in the next iOS update, your preference will sync between the app and the web. Related
Librarian, technology instructor and writer in rural Vermont; longtime community manager at MetaFilter and author of a book on the digital divide.
Friday afternoon reminder to not empty your inbox at the expense of someone else's. I'm deep in my Massachusetts visit, becoming one of those people who can't look at a place without remembering what used to be there. My birthday is tomorrow, so there are all sorts of opportunities for reflecting and remembering. Oh and I guess it's a holiday weekend in the US, so maybe schedule those emails for Tuesday. Image credit: Library of Congress, on Flickr Commons flickr.com
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Ancient and military historian; writes A Collection of Unmitigated Pedantry, long series checking what history actually says against how popular culture tells it.
Fireside Friday, September 4, 2026 Hey folks! Fireside this week! Last week’s post was a monster (over 10,000 words compared to our more typically ~6,000) which left me with some non-blog catching up to do. Next week, we’ll be starting our next Teaching…
Related
Co-founder, chairman and chief investment officer of Ritholtz Wealth Management. Hosts the Masters in Business podcast for Bloomberg and wrote How NOT to Invest.
3 September
Creator of the Keras deep-learning library and the ARC-AGI benchmark.
Their words
so harness capabilities are increasingly shifting into the model itself.
Show the whole quote
@fchollet on X x.com
Creator of the Keras deep-learning library and the ARC-AGI benchmark.
Their words
GPT-6 Astra represents a step-function change in model capability for interactive reasoning problems. It scores 66% on ARC-AGI-3 using our standard harness, and nearly 100% with a continuous conversation harness and custom compaction, at a cost of roughly $360 per game.
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x.com
2 September
Product discovery coach; wrote Continuous Discovery Habits and writes Product Talk.
1 September
Principal engineer at Cloudflare as of 2026, on agents and developer tooling. Streams TypeScript, OCaml and Neovim on Twitch, and wrote the better-result library after writing the same Result type about a hundred times.
TypeScript
Their words, before
introducing better-result, my opinionated take on the rust result type for typescript after having written about 100 times
npm i better-result
*disclaimer*: if you can use effect-ts, you should use effect-ts
Show the whole quote
Their words now
every time i’ve built something without effect over the past almost 3 years ive come to deeply regret it and wish i had just done it from the start
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Principal engineer at Cloudflare as of 2026, on agents and developer tooling. Streams TypeScript, OCaml and Neovim on Twitch, and wrote the better-result library after writing the same Result type about a hundred times.
TypeScript
Their words
every time i’ve built something without effect over the past almost 3 years ive come to deeply regret it and wish i had just done it from the start
Show the whole quote
@dillon_mulroy on X x.com
31 August
Web designer and writer; founded A List Apart and Happy Cog, co-founded the An Event Apart conference, and wrote Designing With Web Standards.
29 August
Co-founder and CEO of Linear; previously principal designer at Airbnb, where he led the Design Language System, and founding designer at Coinbase.
Coding on @linear allows you to pick your harness + model Related
28 August
Librarian, technology instructor and writer in rural Vermont; longtime community manager at MetaFilter and author of a book on the digital divide.
Friday afternoon reminder to not empty your inbox at the expense of someone else's. I'm out of town helping my sister after she recovers from a medical procedure (she's doing well!). I'm out of my routine and pretty well out of my inbox and DEFINITELY out of it after 5 pm. Be mindful about what you ask for from other people, but just do your best. Have a restful weekend. Image credit: National Library of Medicine, on Flickr Commons flickr.com
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American software engineer; worked on code-server at Coder and teaches TypeScript and open-source contribution. Publishes at joeprevite.com.
quick friday task for you stop scrolling and tell yourself this "today your day is going to be full of wins and luck will follow you" then see how the day unfolds Quoting @thebeautyofsaas reminder on how to get lucky >wake up >before doing anything, walk up to the bathroom (first thing in the morning) >look at yourself in the mirror and tell yourself that your day is going to be full of wins and that luck will follow you >witness things you have never seen before Related
26 August
Full-stack developer, creator of Tailwind CSS; writes at adamwathan.me and makes courses and screencasts for web developers.
.@AmpCode is consistently 3-4 months ahead of every other harness in terms of discovering and optimizing the next workflow leap, feels like their only disadvantage is not being a model company and not being able to subsidize tokens. Insane to me that a model company hasn’t scooped them, would be a huge advantage now that most of the frontier models are equally capable. Related
Programmer; makes Handmade Hero and teaches Performance-Aware Programming, and argues loudly about how software got slow.
Their words
I've said like the licensable engine thing kind of was our AI transition already unfortunately and uh I regret to inform you that the news is not probably that positive.
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youtube.com
22 August
Founder and editor-in-chief of MacStories, writing about Apple software, iPad workflows and automation since 2009. He co-hosts the AppStories podcast.
21 August
Librarian, technology instructor and writer in rural Vermont; longtime community manager at MetaFilter and author of a book on the digital divide.
Friday afternoon reminder to not empty your inbox at the expense of someone else's. I'll be headed down to Massachusetts to spend some time with my sister next week and I've already got my clipboard out and am making lists. Maybe I'll catch Super Troopers 3 at the local movie house. Either way, my mind is nowhere near my email. Fortunately it does not have to be. Image credit: Randolph Historical Society, on Flickr Commons flickr.com
Related
20 August
Founder and editor-in-chief of MacStories, writing about Apple software, iPad workflows and automation since 2009. He co-hosts the AppStories podcast.
18 August
Programmer, teacher and speaker; long-time Microsoft developer-community figure, host of the Hanselminutes podcast and author of the hanselman.com blog.
17 August
Founder and former CEO of Zynga, the social-games company behind FarmVille, Zynga Poker and Words with Friends; says he founded ten companies in all, and wrote Life at the Speed of Play.
Similar story. My company https://t.co/E0nVasQNNz was one of the handful of cos that could go public in the end of the dotcom IPO window bc we had $170m in bookings. Accel went on a jihad to replace me as CEO bc i was 32 and had never run a public co. They literally couldnt find a single reason other than my lack of age and experience and i had the junior partner who needed to prove he had the mojo to change out one of ‘his’ ceo’s. I regret that i eventually caved since it led to such a lower $$ outcome with the grey haired HP ceo who had no ability to navigate the multiple reinventions neede… Quoting @dnapway Travis Kalanick reveals Bill Gurley pressured him to take a $6 billion valuation. Two months later, he raised at $17.5 billion. "Gurley was convinced it was the end of the world and we've got to raise, and just take your first term sheet, just f*cking take it." "We got to a place where I just would… Related
16 August
Programmer and teacher; writes on software, learning and the web, and makes the Coding Blocks video course.
Their words
The only regret I have is not reading this book 5 years earlier. Also, not every single teacher on the planet did read this — what a shame.
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rakhim.org
14 August
Journalist and author of The Art of Noticing; writes the newsletter The Art of Noticing (TAoN) on attention, creativity and the everyday.
Ancient and military historian; writes A Collection of Unmitigated Pedantry, long series checking what history actually says against how popular culture tells it.
10 August
Founded PSPDFKit in 2011 and ran it for a decade. Came back from a break to work on AI agents — the OpenClaw project, and OpenAI, joined in February 2026. Writes at steipete.me.
Sequoia Professor of Computer Science at Stanford, co-director of the Stanford Institute for Human-Centered AI, and co-founder and CEO of World Labs.
Their words
humans are capable of doing a lot of things with our tools, but we don't do all of them. For example, today any car manufacturer can say every Friday the brake doesn't work. This is a trivial technology. There's a clock in the car's computer and it just turns off the brake every Friday. But we don't do that because it has deeply bad implications to our human society.
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youtube.com
9 August
Designer, illustrator and CSS developer known for single-div CSS illustrations, a yearly portfolio redesign, and a set of single-topic side-project sites.
A ton of people have submitted the Camp Miasma series to Nestflix, but the movie isn’t showing here until Friday. I am *pumped* though because this is like the gold standard madebymutant.com
Related
4 August
Writer and former Substack product manager; publishes essays and interviews on technology, culture and China at jasmi.news.
This piece is out! 4 sites, 10 days, and 6000 words on the politics of data centers in the Midwest: https://t.co/uOL7vmf3wC I talked to union leaders and real estate brokers, activists and local officials, politicians from Kathy Hochul to Abdul El-Sayed. A few takeaways: - Activists are as pissed at their local officials as at AI companies - The bigger the dollar signs, the more skeptical people are - Past corporate failures (Foxconn, GM, DTE) prime community distrust - Even data center proponents regret the NDAs - Media narratives turn local grievances into national movements - Residents fea… Quoting @jasminewsun I’m spending the next week driving around Wisconsin and Michigan to get a firsthand view of the data center buildout and backlash am visiting sites, talking to tons of people — tradespeople, activists, planners, residents — then writing up a story lmk what questions I should dig into! data centers Related
31 July
Ancient and military historian; writes A Collection of Unmitigated Pedantry, long series checking what history actually says against how popular culture tells it.
Fireside Friday, July 31, 2026 (On The Odyssey) Hey folks, Fireside this week, as I am fresh back from a short family trip before the jaws of the Fall semester close upon me. I did get a chance to see Christopher Nolan’s The Odyssey and I wrote a review of it for For…
Related
27 July
Creator of Claude Code at Anthropic.
26 July
Mathematician and Senior Lecturer in the Mathematics department at Columbia University. Author of the book Not Even Wrong and of the long-running physics blog of the same name.
Requiem for a Field? Kevin Hartnett posted the following Friday: My profile of @Jacob_Tsimerman, published the morning he won the Fields Medal, and hours before he announced he’s going to @OpenAI, reads like a requiem for a field. While I’m…
OpenAI Related
24 July
Co-founder of Modem and a founding engineer at Sentry, where he went on to be VP of Engineering. Co-author of Third-party JavaScript, and co-host of the State of Agentic Coding podcast with Armin Ronacher.
✅ Yes the code matters In experiments we ran, well-named and organized code can dramatically improve agent outcomes: - fewer tokens spent/more context window preserved - fewer confidently wrong answers developed Verified against 14 model/harness combos incl Sol, Fable, GLM 5.2 and more Quoting @benv.ca 👋 New blog post: "How coding agents read files – and how to write for them" In it I explain how code optimized for agent-discovery can lead to major token savings on search + retrieval, even with frontier models like GPT-5.6 Sol Plus other important findings ⬇️ Related
22 July
Security engineer; founder of Matasano Security and Latacora.
OpenAI
Their words
I genuinely believe that if you took an open weights model from 2025 and built a pentest harness for it, it could do this kind of sandbox escape and scan/hack in most networks. This is only surprising because you assume OpenAI has sounder sandboxes.
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@tqbf on X x.com
17 July
Journalist and author of The Art of Noticing; writes the newsletter The Art of Noticing (TAoN) on attention, creativity and the everyday.
15 July
Founder of HumanLayer; wrote 12-Factor Agents, on how to build AI agents that hold up in production.
From one piece
Context engineering with Dex Horthy
2 beliefs, in the piece's order there
14 July
Software design writer and chief scientist at Thoughtworks; wrote Refactoring and Patterns of Enterprise Application Architecture.
DSLs Enable Reliable Use of LLMs LLMs generate code incredibly fast, but to ensure they generate exactly what is intended, they need clear boundaries. Abstractions and Domain-Specific Languages (DSLs) provide a strong harness that guides LLMs right fro…
LLMs Related
Machine-learning researcher; has written the Lil'Log survey posts on how a model technique works since 2017, and worked at OpenAI from 2018 to 2024, latterly leading its safety systems team.
6 July
Writer and teacher on productivity and personal knowledge management. Author of Building a Second Brain and founder of Forte Labs, which runs the course of the same name.
4 July
Indian value investor who taught Behavioural Finance and Business Valuation as an adjunct professor at MDI Gurgaon. He writes the Fundoo Professor blog about investing, moats and mental models.
Message from my daughter Meet Lulu: born on the streets of Delhi but meant for only fine treats, Lulu is an orphaned female puppy who lost her mother and her littermates. A rough start to life hasn’t dampened her spirit though: Lulu is a feisty, energetic, adorable ball of fun! Give her a chance - you won’t regret it 💛 Contact Garima if interested in adoption. Related
Machine-learning researcher; has written the Lil'Log survey posts on how a model technique works since 2017, and worked at OpenAI from 2018 to 2024, latterly leading its safety systems team.
27 June
AI research engineer working on large language models. He writes the Ahead of AI newsletter and is the author of Build a Large Language Model (From Scratch).
15 June
Machine learning engineer working on recommender systems, personalization and information retrieval. Previously worked on LLMs and LLM infrastructure at Mozilla.ai and on ML and recsys at Duo, Tumblr, Automattic and Comcast; wrote the 'What are embeddings?' text and ran the Normconf conference.
Their words
For my local setup, I'm currently using Pi as the agent harness and LM Studio as the inference server
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vickiboykis.com
Their words
For my local setup, I'm currently using Pi as the agent harness and LM Studio as the inference server
Show the whole quote
vickiboykis.com
13 June
Co-founder and CTO of Honeycomb; previously an infrastructure engineer at Parse, Facebook and Linden Lab, and co-author of Observability Engineering.
I have a not-so-secret love for advice columns. Which is why I just started writing one for @StackOverflow, every other Friday for the next 3 months. First column is up -- "Paging Charity! How do I get my leaders to stop running teams into the ground?" stackoverflow.blog
Related
12 June
Security technologist and author of books including Applied Cryptography and Data and Goliath; writes the Schneier on Security blog and the monthly Crypto-Gram newsletter.
29 May
Security technologist and author of books including Applied Cryptography and Data and Goliath; writes the Schneier on Security blog and the monthly Crypto-Gram newsletter.
27 May
Builds developer tools — SST, and now OpenCode at Anomaly. Posts constantly on x.com and writes almost never; the blog stopped in 2021.
18 May
Member of technical staff at Anthropic. He has led ML/AI teams at Amazon, Alibaba and Lazada, and writes about LLMs, recommender systems and engineering at eugeneyan.com.
Cloudflare on their vulnerabilty discovery harness • Recon: Read the codebase, return an architecture doc • Hunt: ~50 agents look for bugs concurrently • Validate: Independent agents try to disprove findings • Gapfill: Areas that need a 2nd pass are flagged • Dedup: Findings with the same root cause combined • Trace: Confirms if attacker input reaches the bug • Feedback: If reachable, becomes new hunt tasks • Report: Write report with predefined schema blog.cloudflare.com
Related
7 April
AI research engineer working on large language models. He writes the Ahead of AI newsletter and is the author of Build a Large Language Model (From Scratch).
14 March
Mac and iOS developer at the Iconfactory, where he has worked on apps including Twitterrific and Tot. He writes about development at furbo.org.
Their words
As you’ll see below, this is not a printer that will be easy to deal with on a Mac. It will be a purchase you regret.
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furbo.org
13 March
London-based front-end architect, web developer evangelist and cloud consultant; Microsoft MVP. Writes at praveen.science and answers on Stack Overflow.
Folks! 👋🏻 #London 🇬🇧 → 🇮🇳 #Chennai, this Friday, the 13th, today! ✈️ Visiting: 👉🏻 #Chennai 🌊 👉🏻 #Coimbatore 🌴 👉🏻 #Bengaluru 🚀 If you're a #developer, #student, or #founder building something interesting, let's grab coffee and chat! ☕ Schedule intentionally flexible! 👋🏻 Related
12 February
Founded PSPDFKit in 2011 and ran it for a decade. Came back from a break to work on AI agents — the OpenClaw project, and OpenAI, joined in February 2026. Writes at steipete.me.
Their words
I actually think vibe coding is a slur.
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youtube.com
24 January
Programmer, teacher and speaker; long-time Microsoft developer-community figure, host of the Hanselminutes podcast and author of the hanselman.com blog.
Hid an Easter Egg in the new Azure Friday website...I'm very happy with how this turned out https://www.azurefriday.com/ I think you all will appreciate it Related
Machine learning engineer and consultant focused on RAG and retrieval systems. He writes about applied AI engineering at jxnl.co and is the author of the instructor library.
Their words
I've worn my Wyatt harness boots for years and they're still pristine.
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jxnl.co
7 January
Executive coach for product leaders. Previously a partner at GV (Google Ventures) and a product manager at Google. Writes at Bring the Donuts, including a standing essential-reading list for product managers.
Their words
can lead to imposter phenomenon. In this book, a leading psychologist looks at the science behind our inner voice and new research into how to harness it and improve your physical and mental health.
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bringthedonuts.com
24 December 2025
Co-founder and CTO of Honeycomb; previously an infrastructure engineer at Parse, Facebook and Linden Lab, and co-author of Observability Engineering.
23 November 2025
Member of technical staff at Anthropic. He has led ML/AI teams at Amazon, Alibaba and Lazada, and writes about LLMs, recommender systems and engineering at eugeneyan.com.
30 June 2025
Writes Don't Worry About the Vase, a near-daily account of what is happening in AI and what they think it means. Former Magic: the Gathering pro and trader; unusually willing to put a number on a belief and to grade their own past calls.
Their words
He offers a unique form of grounding on political, sports and other issues, and a way of bridging my kinds of ideas into mainstream discourse. I almost never regret reading.
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thezvi.substack.com
23 May 2025
Writer and developer. He runs the Latent Space newsletter and podcast about AI engineering, and writes essays on software and careers at swyx.io.
31 December 2024
Machine learning engineer working on recommender systems, personalization and information retrieval. Previously worked on LLMs and LLM infrastructure at Mozilla.ai and on ML and recsys at Duo, Tumblr, Automattic and Comcast; wrote the 'What are embeddings?' text and ran the Normconf conference.
Their words
The Tombs of Atuan - My only regret is that I came to Ursula K. LeGuin so late in life, and this might be my favorite of all of her books I've read so far.
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vickiboykis.com
16 December 2024
Writes The Pragmatic Engineer, the software-engineering newsletter, and wrote The Software Engineer's Guidebook. Formerly an engineering manager at Uber, and at Microsoft/Skype and Skyscanner before that.
21 July 2024
Computer performance engineer working on datacenter performance at OpenAI, previously Netflix and Sun/Joyent. Author of Systems Performance and BPF Performance Tools, and creator of flame graphs.
No More Blue Fridays In the future, computers will not crash due to bad software updates, even those updates that involve kernel code. In the future, these updates will push eBPF code. Friday July 19th provided an unprecedented example of t…
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20 April 2023
Founded CD Baby in 1998 and sold it in 2008, giving the proceeds to a charitable trust for music education. Since then a writer and speaker: five books and 550+ articles, published first at sive.rs, which they hand-code and keep free of advertising.
On changing their mind
There's always a chance I might never see my family again. Because of that, I often regret it. It's usually best to keep options open.
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29 July 2022
Co-founder and partner at Union Square Ventures in New York. Has written the AVC blog almost every day since 2003, on venture capital, startups, music and crypto.
@whitneymcn @aweissman happy cover friday. here is Valerie June covering Gillian Welch soundcloud.com
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22 July 2022
Co-founder and partner at Union Square Ventures in New York. Has written the AVC blog almost every day since 2003, on venture capital, startups, music and crypto.
22 October 2019
Journalist and author of Can't Even: How Millennials Became the Burnout Generation. Writes the newsletter Culture Study, which runs a recurring links-and-recommendations issue.
Their words
Instagram-influenced purchase I regret most: Brooklinen sheets
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annehelen.substack.com
Their words
Instagram-influenced purchase I regret not at all: The Summersalt Sidestroke
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annehelen.substack.com
15 January 2019
Software engineer and founder of Block Party; previously an engineer at Pinterest and Quora, and a co-founder of the non-profit Project Include and the tech diversity data project Where are the Numbers?
Their words
I'm currently on a late 2016 MacBook Pro, 13", with a Touch Bar. I deeply regret the MBP - 1: dongle life, 2: the lack of a physical escape key makes coding in emacs very difficult, 3: the keys on the butterfly keyboard are constantly too loose or totally stuck, 4: so much beach ball.
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usesthis.com
16 July 2018
Software engineer; co-founder and former CTO of Tailscale, previously on the Go team at Google.
Nothing matches. Show everything
A korrent is a belief a person has stated in their own words: one
sentence stating the claim, backed by a quote and a source, kept at
korrents.com .
Under a name here, the quoted block is what they actually said.
The korrent beneath it is the claim those words support, in
korrents' wording — tap it to see the record, its source, and who
else holds it.
Nobody here wrote their own korrents. They are compiled from public
statements, and a person can change their mind, which is recorded too.
Got it
About the English under a post
Some people here publish in a language other than English. Where they
do, this site shows a machine translation beneath the post, in
this typeface — the site's own, not theirs.
The post itself is never changed, moved or hidden: what is set in the
serif above is exactly what the person published, and it is what to
quote them on. A translation can be wrong in ways that matter,
especially about tone.
Only the post's own words are translated. A quoted post, a linked
article and a belief on korrents.com
are left in their original language.
Got it