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Stack Overflow is almost dead
Today, Stack overflow has almost as few questions asked per month, as when it launched back in 2009. A recap of its slow, then rapid, downfall.
New
The latest blog posts to take off on Hacker News. 80,841 posts.
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The unreasonable effectiveness of an LLM agent loop with tool use
How a simple loop enables powerful AI assistants
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The current state of TLA⁺ development
The 2025 TLA⁺ Community Event was held last week on May 4th at McMaster University in Hamilton, Ontario, Canada. It was a satellite event to ETAPS 2025, which I also attended, and plan to write about in the near future. I gave a talk somewhat-hucksterishly titled It’s never been easier to write TLA⁺ tooling! which I…
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Windsurf SWE-1: Our First Frontier Models
Introducing our first Frontier Models!
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“The Mind in the Wheel” lays out a new foundation for the science of mind
OR: the ideas your mother warned you about
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I don't like NumPy
it’s too hard
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Malicious compliance by booking an available meeting room
In 2011, Larry Page became CEO of Google and tried to fix meetings. But his new policies were no match for Google Calendar pedants.
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Pathfinding
Hello! I've recently been working on the pathfinding for NPCs in my game, which is something I've been looking forward to for a while now since it's a nice chunky problem to solve. I thought I'd write...
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Project Verona: Fearless Concurrency for Python
Research programming language for concurrent ownership
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EU ruling: tracking-based advertising [...] across Europe has no legal basis
Landmark court decision against “TCF” consent pop ups on 80% of the internet
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Lessons from Mixing Rust and Java: Fast, Safe, and Practical
This article provides a hands-on guide to integrating Rust and Java through the Java Native Interface (JNI).
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Migrating to Postgres
Since early 2022, Motion was on CockroachDB. Cockroach has many qualities going for it: effortless horizontal scaling, especially when…
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A server that wasn't meant to exist
A story from 16 years ago - trust, tech, and a server that had to disappear. They offered me a blank check. I said no.
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Coding without a laptop: Two weeks with AR glasses and Linux on Android
Simple tools for smart, attractive people like you
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AlphaEvolve: A Gemini-powered coding agent for designing advanced algorithms
New AI agent evolves algorithms for math and practical applications in computing by combining the creativity of large language models with automated evaluators
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Coding agent in 94 lines of Ruby
“It’s not that hard to build a fully functioning, code-editing agent.” Thorsten Ball
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How the economics of multitenancy work
CI is chaotic, bursty, spiky, and short-lived. That chaos is a nightmare unless you’re built for it. Blacksmith’s serverless CI cloud thrives on unpredictability: more customers = more noise = smoother utilization = lower costs for everyone. Multitenancy isn’t just efficient — it’s profitable. And yes, the margins are…
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What is HDR, anyway?
It's not you. HDR confuses tons of people. In this post, we finally explain what HDR actually means, the problem it presents, and three ways to solve it.
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E-COM: The $40M USPS project to send email on paper
E-COM was a $40 million US Postal Service project to deliver email on paper. Why it failed, and why spammers were its only real customers.
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The cryptography behind passkeys
This post will examine the cryptography behind passkeys, the guarantees they do or do not give, and interesting cryptographic things you can do with them, such as generating cryptographic keys and storing certificates.
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Databricks acquires Neon
Databricks agrees to acquire Neon, a serverless Postgres database company, to bring speed and flexibility to production workloads.
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$20K Bounty Offered for Optimizing Rust Code in Rav1d AV1 Decoder
In March of 2023 we announced that we were starting work on a safer high performance AV1 decoder called rav1d, written in Rust. We partnered with Immunant to do the engineering work. By September of 2024 rav1d was basically complete and we learned a lot during the process. Today rav1d works well—it passes all the same…
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Wise refuses to let us access our $60k AUD
Wise has stolen more than $60,000 AUD from us, and refuses to let us access it. We’ve had a Wise account for around 5 years (since they were called TransferWise). It’s been a really useful …
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The recently lost file upload feature in the Nextcloud app for Android
Discover why Nextcloud file uploads for Android app are not working properly, and how Google’s app store rules are hurting Nextcloud users.
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Writing that changed how I think about programming languages
Every so often I come across a paper, blog post, or (occasionally) video that completely changes how I think about a topic in programming languages and compilers. For some of these posts, I can’t even remember how I thought about the idea before reading it—it was that impactful.