Founder of Leanpub. Paid over $15M in royalties to authors. Write in Markdown, publish an ebook and course with 1 click.

Victoria, British Columbia
Joined May 2007
So @leanpub launched in 2010, and we've been generating PDF and EPUB ebooks from Markdown for over a decade. Authors can click one button and we publish their book in PDF and EPUB. We take this for granted now, even though it's news to most of the world. What's new? 🧵
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Peter Armstrong retweeted
This is gonna be a bloodbath if Andrew is warning people to go ahead and take any PHP offline until patch drops.
Full details of a remotely exploitable vulnerability in the core engine of *all* PHP versions will be released tomorrow, October 21st. If your organization has internet facing PHP applications then you need to be ready to patch the minute the update is released or *strongly* consider taking the application offline until you can: php.net/index.php#2026-10-20…
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Peter Armstrong retweeted
If Claude didn’t tell Ben Wilson to go to the doctor he’d already by dead: .@BenWilsonTweets had been ignoring his symptoms until he entered everything into Claude. “Claude said, ‘This isn’t the kind of thing like go in next week when you have a chance. This is the kind of thing—go in right now. If you can’t be seen right now, go to an emergency room.’” “And Claude was right.” “If I lived in a world where there were no cancer treatments, I probably would’ve been dead within a few months.” “The initial prognosis was one year. If you go and look up the survival statistics for the type of cancer I had and the amount of spread that I had, the five-year survival rate is zero percent.” “I’ve been trying to live two lives at once, one in which I die sometime in the next year and one in which I’ve got 20 years.”
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Peter Armstrong retweeted
Ben Wilson (@BenWilsonTweets) has stage 4 cancer and 4 kids under the age of 5. I want to help him as much as possible, so I invited him on the podcast to talk about his work studying history’s greatest leaders and what it’s like getting told he’s going to die at 38. He’s a good guy, a close friend, and one of my favorite podcasters. His work has benefited millions of people all across the world. Please watch this episode and see if you can help with medicine, introductions, or donations. 0:00 What Ben has learned from making How to Take Over the World and studying history’s greatest leaders. 55:51 Living like you're dying. Ben on facing cancer.
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Peter Armstrong retweeted
ok japan is serving me weapons grade ai content holy shit xitter.cf/tintinpapa1/status/210…
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Peter Armstrong retweeted
I’m a little embarrassed to post this since everyone else probably already knew, but @adamwathan just told me about this command: 𝚍𝚎𝚏𝚊𝚞𝚕𝚝𝚜 -𝚌𝚞𝚛𝚛𝚎𝚗𝚝𝙷𝚘𝚜𝚝 𝚠𝚛𝚒𝚝𝚎 -𝚐 𝙰𝚙𝚙𝚕𝚎𝙵𝚘𝚗𝚝𝚂𝚖𝚘𝚘𝚝𝚑𝚒𝚗𝚐 -𝚒𝚗𝚝 0 Log out and back in. I've basically been living with a blurry film over my XDR display for years. 😭
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Peter Armstrong retweeted
Feedback. Stakes. Money. Momentum. Those are the four things that finish a book, and writing in private starves it of all four. That's why books die alone. Leanpub founder @peterarmstrong on the way out. Free, live on Zoom, Oct 1 and 8. leanpub.com/events/books_die…
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Peter Armstrong retweeted
Feedback. Stakes. Money. Momentum. Those are the four things that finish a book, and writing in private starves it of all four. That's why books die alone. Leanpub founder @peterarmstrong on the way out. Free, live on Zoom, Oct 1 and 8.
🤖 Made with AI

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Peter Armstrong retweeted
We were built differently in the 1980s.
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Wife told me these wouldn’t fit. Little did she know I had trained for this moment for years.
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Peter Armstrong retweeted
OLD BUT GOLD
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Peter Armstrong retweeted
hello
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Peter Armstrong retweeted
i want to make software that feels like this
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Peter Armstrong retweeted
lol
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Peter Armstrong retweeted
Wife: "You picked up the kids from school, right?" Me: "Three findings, and one of them is more serious than the question you asked."
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Peter Armstrong retweeted
Não tenho estrutura pra não rir disso. Mbappé ficou incrível. 🤣🤣
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Peter Armstrong retweeted
Something I noticed about working with Fable...
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Peter Armstrong retweeted
For anyone with endless ideas, this agent age is nirvana as those ideas are met with endless execution, endless exploration. I've never had has much fun working with computers as I do right now. What a time to be alive.
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Peter Armstrong retweeted
An internal version of Astra, @OpenAI’s next major model family, solved 10 major open problems in mathematics, quantum complexity, and theoretical computer science. We believe it will be a major step for scientific reasoning. openai.com/index/ten-advance…
10 proofs from our next major model Astra on long-standing open problems in mathematics and theoretical computer science (also including new circuit lower bounds for computing the permanent!) GPT-5.6 has already enabled so much exciting work in math and science. Can’t wait to see what comes next!
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