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rfc-http-validate — Validate HTTP messages in XML2RFC documents
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20 September
Co-creator of Django and creator of Datasette; writes daily at simonwillison.net.
17 September
Creator of Ruby on Rails, CTO of 37signals, and creator of Omarchy.
I continue to be extremely impressed with our bankers at @MorganStanley. To be able to submit a wire transfer, while on a call with the team at @remote, confirm in the app, and have it all wrapped up before hanging up? PRICELESS 🏆 Related
14 September
President of the French Republic since 2017.
Depuis le premier jour, j’ai pris un engagement : protéger nos enfants en ligne. Nous irons au bout. À la suite de la décision rendue par le Conseil constitutionnel à la mi-août sur l’interdiction des réseaux sociaux aux moins de 15 ans, j’avais chargé le Premier ministre de trouver une voie de passage conforme aux observations du Conseil et au droit européen. C’est chose faite. Après un travail technique rigoureux, le Gouvernement notifie aujourd’hui de nouvelles écritures à la Commission, un mois après la décision du Conseil. Cette protection doit aussi devenir la norme pour tous les enfant… English, from French From day one, I made a commitment: to protect our children online. We will see it through. Following the decision made by the Constitutional Council in mid-August on banning social media for under-15s, I had tasked the Prime Minister with finding a way forward that complied with the Council's observations and European law. This has been done. After rigorous technical work, the Government is today notifying the Commission of new submissions, one month after the Council's decision. This protection must also become the norm for all children…
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4 September
Developer, author and YouTuber covering Raspberry Pi, homelab hardware and Ansible automation. Author of Ansible for DevOps.
I restomodded a 1995 GPS Time & Frequency Server, and learned wire wrapping, a little GPS history, and how to avoid the Telstra back-to-2006 bug. Video: Related
Wire wrapping is neat. Never tried it before, but now I have and I love it for prototyping! (And no that is not AI-generated, somehow the physics of wire wrapping results in these beautiful little towers of gas-tight low-resistance connections!) Related
2 September
Web standards author and speaker; wrote the CSS: The Definitive Guide series and co-founded the An Event Apart conference.
I’m trying to reattach interior pieces of a decades-old violin case. The pieces were originally affixed by staples that have a 4.5mm crown, 10mm leg length, and are made from wire that’s 0.75mm thick. I have searched a bunch permutations of those dimensions (metric and imperial-converted) with various terms (“narrow crown”, “upholstery”, “trim”, etc.) and am still coming up empty for what these staples are and where I could get new ones, and what kind of device I would need. Anyone here know? Related
31 August
Bootstrapper and investor. Founder of TinySeed and MicroConf, host of the Startups for the Rest of Us podcast, and author of several books on self-funded software startups.
One of the biggest copes I hear from solo technical founders: “I don’t need to validate it. I’m building it for myself, so even if nobody else uses it, it’s still a success.” No. If you want to build something for yourself, great. That’s a project. If you want to build a product, you should do the work: talk to customers, validate demand, think about positioning and marketing, and work to build something people will actually pay for. You don’t get to skip all the hard, boring, uncomfortable parts of building a business and then redefine success as “well, I use it.” Build for yourself or build… startups Related
29 August
Co-founder and CEO of Stripe and co-founder of the Arc Institute. Keeps a personal site of reading lists, open questions and notes on scientific progress and how research is funded.
Between wallets for agents with @link (and @privy), MPP, Tempo, MCP, Stripe CLI, Agentic Commerce Suite, sandboxes, OpenRouter, Metronome/metered billing, Radar and distillation/token fraud, it turns out that "the economic infrastructure for AI" implicates a lot. Pretty much every layer of the Stripe stack is changing, and it’s a very good time to join if you want to build high-scale software that facilitates the practical deployment of this new intelligence. MCP Related
23 August
Co-founder and CEO of Shopify; long-time Linux user and Omarchy contributor.
18 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.
. @yurimilner was that world class investor. After one meeting he said he wanted to invest and asked me for a valuation. I threw out a number 10 pct below what i figured our next round would be. He said he would wire the money next week. I think it was $150m. Never asked for board seat or any terms. He ttly got what the founder of a high growth company cared about. No meetings. No terms. Dont bother us. Let us cook! Quoting @kevinleeme Whenever other founders ask me who my best investors are and who I’d recommend they work with, I name the handful of VCs who rarely bother us and trust us to operate. It’s funny how simply doing nothing as an investor can put you in the top 1% of a founder’s book. Related
17 August
Web infrastructure engineer and standards editor; chaired the IETF HTTP working group and co-authored core HTTP and Atom specifications.
13 August
Web developer and writer; an early GitHub employee, author of speaking.io and of widely read essays on startups and product.
i really can’t fathom what github would have looked like had we had LLMs in 2010. the amount of automation built into hubot was staggering anyway. the company was already being run fly-by-wire. LLMs Related
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.
27 July
Creator of Claude Code at Anthropic.
18 July
Structural engineer and senior infrastructure fellow at the Institute for Progress; writes Construction Physics on why physical things cost what they cost.
Reading List 07/18/26 A setback for California Forever, a $500 million artillery shell plant not producing any shells, the difficulty of recycling EV batteries, manufacturing wire harnesses, and more.
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3 July
Software engineer who writes the blog Made of Bugs about performance, debugging and understanding computer systems. Previously worked at Anthropic on interpretability, at Stripe on Sorbet, and at Ksplice.
29 May
Hosts the Lex Fridman Podcast — long, unhurried conversations with scientists, engineers and public figures. Several of the interviews quoted elsewhere on this site are episodes of it.
Their words
One of my favorite lecture series he has given is The Evidence for Modern Physics where he breaks down the experiments that validate some of the weird laws of physics we have, and what it would take to validate even the weirder ones.
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x.com
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
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Latvian full-stack WordPress developer and course creator at WPElevator; blogs since 2007 about the open web, electronics, home automation and sustainable living.
14 May
Indian software engineer working on Android and React; writes about his setup and side projects at ishubhamsingh.dev.
7 April
Programmer; wrote Extreme Programming Explained and Test-Driven Development, signed the Agile Manifesto, and writes Tidy First?.
Their words
Yeah, what what's the smallest experiment I can run to verify to my own satisfaction and everybody's level of satisfaction is going to be different whether or not this claim is true. That's That's the skill that is suddenly in the last year become a thousand times more valuable is that skill of saying, "What's the least I can do to validate for my to my own satisfaction whether this claim is true?
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youtube.com
19 March
Co-creator of Django and creator of Datasette; writes daily at simonwillison.net.
From one piece
Simon Willison: Engineering practices that make coding agents work - The Pragmatic Summit
2 beliefs, in the piece's order there
Their words
And what you can do if you've got one of these conformance suites is you can give it to a a good agent and say, "Write code until this test suite passes." And it kind of will.
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youtube.com
Their words
just cuz the test suite passes doesn't mean that the web server will boot. You know, there's there's always a chance that when you actually try in the real world, something's not going to work.
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youtube.com
21 January
Co-founder of Superlogical, started in 2026 to build server-side terminal infrastructure; creator of Ghostty. Co-founded HashiCorp and created Vagrant and Terraform before that.
1 January
Long-time Debian developer and free-software maintainer (remctl, INN, pam-krb5) who has published book reviews on his personal site since the 1990s.
Their words
The best book I read this year was also the last book I reviewed (and yes, I snuck the review under the wire for that reason): Bethany Jacobs's This Brutal Moon, the conclusion of the Kindom Trilogy that started with These Burning Stars. I thought the first two books of the series were interesting but flawed, but the conclusion blew me away and improved the entire trilogy in retrospect. Like all books I rate 10 out of 10, I'm sure a large part of my reaction is idiosyncratic, but two friends of mine also loved the conclusion so it's not just me.
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eyrie.org
5 December 2025
American author of The Subtle Art of Not Giving a F*ck and Everything Is F*cked. Writes essays and book reviews at markmanson.net.
OpenAI
Their words
ChatGPT, in particular, seemed to just want to validate me, tell me how great I was, reinforce any bad beliefs I might have had, and avoid saying anything uncomfortable.
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markmanson.net
8 October 2025
Marketing author and daily blogger; founder of the altMBA and the Akimbo workshops, and author of books including Purple Cow and This Is Marketing.
Their words
I also subscribe to the vetted suite of tools at Setapp. They rarely disappoint.
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seths.blog
15 April 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.
Great example of generate -> validate loop + error analysis > "the most effective route to improve outcomes was brute force: retry steps until they passed or reached a limit. We give the validation errors ... to the LLM and built a loop runner" LLMs Related
10 April 2025
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.
28 February 2024
Co-founder and CTO of Linear; previously an engineer at Uber.
Their words
The MVP as a practice of building a hacky product as quickly and cheaply as possible to validate the product does no longer work. Many product categories are already saturated with a variety of alternatives, and to truly test the viability of any new idea you need to build something that is substantially better.
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linear.app
9 July 2023
Brazilian-American staff software engineer working on platforms, AI and developer productivity. Writes about engineering and his setup at ivansantos.me.
Their words
Affinity Suite is my go to for all my design needs. I use Affinity Designer and Affinity Photo.
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ivansantos.me
14 April 2022
Programmer based in Vancouver who writes at scattered-thoughts.net about databases, programming language design and developer tools; author of the Imp, Dida and Zest language experiments.
22 December 2020
Programmer, teacher and speaker; long-time Microsoft developer-community figure, host of the Hanselminutes podcast and author of the hanselman.com blog.
Their words
WireShark - What's happening on the wire! WireShark knows!
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hanselman.com
20 October 2020
Emeritus Professor of Statistics at the University of Cambridge, former president of the Royal Statistical Society, and author of The Art of Statistics.
1 March 2020
Software engineer who writes the blog Made of Bugs about performance, debugging and understanding computer systems. Previously worked at Anthropic on interpretability, at Stripe on Sorbet, and at Ksplice.
Test suites as classifiers Suppose we have some codebase we’re considering applying some patch to, and which has a robust and maintained test suite. Considering the patch, we may ask, is this patch acceptable to apply and deploy. By this we mean…
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