The Legend of von Neumann [pdf]

John von Neumann was a renowned mathematician who made significant contributions to various fields, including quantum physics, logic, and computer science. He is widely regarded as one of the most influential mathematicians of the 20th century.

Pi 1.0

https://earendil.com/static/og/posts/pi-1-0.png
Earendil ships Pi 1.0, a hardened and minimal agent harness, after months of feedback from users. The new version adds features while maintaining its simplicity and supermalleability.

Shimano Bicycle Museum Review

https://inrng.com/medias/images/shimanobikemuseum1.jpg
The Shimano Bicycle Museum in Sakai, Japan showcases a vast collection of bicycles with a focus on their history and evolution. The museum offers an engaging experience for visitors, featuring exhibits on various types of bikes and educational materials about the science behind them.

Several vulnerabilities have been discovered in the Linux kernel

The Debian Security Advisory DSA-6528-1 has been released to address several vulnerabilities in the Linux kernel, including privilege escalation and information leaks. The stable distribution (trixie) has been updated to version 6.12.111-1, and users are recommended to upgrade their linux packages for security reasons.

Show HN: Audionaut – an open-source cross-platform multitrack audio editor

https://raw.githubusercontent.com/kvoltmer/Audionaut/main/docs/media/hero.gif
Audionaut is a free, open-source desktop application for audio editing and recording with precise cutting and clean exports. It runs natively on Windows, macOS, and Linux with optional analysis features that link against a static build of the Essentia submodule.

Clef: Open-weight decision models, and new RL fine-tuning platform

https://blog.cloudflare.com/_image?href=https%3A%2F%2Fblog.cloudflare.com%2F_emdash%2Fapi%2Fmedia%2Ffile%2F01M3TJPKAE7MFBW626XHNC9QVA.png&w=1999&h=1125&f=webp&fit=cover&position=center
Cloudflare is releasing two decision models, Clef and Clef-flash, which can produce bounded structured outputs quickly and consistently. These models are designed to work with various inputs without retraining, contrasting with Large Language Models (LLMs).

Frog and Toad and the Increasingly Capable Machines

https://www.frogandtoad.ai/illustrations/FAT-social-card.jpg
Frog and Toad face the most modern of challenges

SvelteKit 3

https://svelte.dev/blog/sveltekit-3-is-here/card.png
SvelteKit has been updated with polish, type safety, and fewer issues. A migration guide is available to help users adapt to the changes.

DeepSeek Harness Desktop for macOS and Windows

https://www.deepseek.com/harness/images/feat-plugins-en.webp
DeepSeek Harness is now in public preview worldwide, offering composable plugins to extend agent capabilities and tools. Users can create custom plugins or use existing ones to analyze documents, write code, and schedule tasks.

Pi Durable

https://earendil.com/static/og/posts/pi-durable.png
Earendil and the Pi community have released Pi 1.0, a solid foundation for building agentic applications, along with an experimental new package called Pi Durable that enables long-running, durable agents to run anywhere.

Ask HN: Who is hiring? (October 2026)

Sorry

Git 3.0's upcoming SHA-256 default will be a costly mistake

https://blog.gitbutler.com/_next/image?url=https%3A%2F%2Fd2m1ukvwmu7gz4.cloudfront.net%2F9ed26406-8fd8-40f6-a179-3bd86bada713.png&w=3840&q=75
The upcoming Git 3.0 release is planning to change its default hashing algorithm from SHA-1 to SHA-256, but this may cause significant problems for the ecosystem due to compatibility issues and increased complexity. The author suggests an alternative approach of independently rehashing tree contents with a different algorithm and injecting that header into signed objects, which could provide ...

StreetComplete on iOS is now in public beta

https://private-user-images.githubusercontent.com/4661658/309577429-06911703-3822-4dfd-b6de-f48fc533eba6.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.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.AYPy2nLcXZmkNrEgD48MU6qUMZo_a5PeAxlVmkUU2Hk
This ticket aims to coordinate iOS port development for StreetComplete, a mapping app written in 100% Kotlin. Contributions are welcome and can be found on the Project Board with detailed steps outlined.

Automatic Transmission – a data-privacy study of connected vehicles

https://automatictransmission.khoury.northeastern.edu/images/test-facility.png
We tested 21 vehicles and found that most contacted third-party advertisers over Wi-Fi, with some apps sharing sensitive data. Vehicle owners have limited control over data sharing due to complex systems.

Turbo Haskell

A Haskell compiler called THC has been developed to run on the JVM, implementing all of GHC 9.14.1's prim-ops and providing a JIT for GHC Core, allowing it to compile and execute Haskell programs efficiently. THC supports various features like Template Haskell, Linear Haskell, polyglot FFI with other languages, and SIMD instructions.

Using Opus 5.5 to discover a new eyewitness record of the dodo

RIP, vector database

https://turbopuffer.com/og/turbopuffer.png
Turbopuffer is changing its storage architecture to improve performance and scalability for non-vector query plans. The new engine, called turbopuffer v3, will allow for faster queries and better handling of large datasets.

Various Projects Find Hidden SDR Capabilities in ESP32 Microcontrollers

https://www.rtl-sdr.com/wp-content/uploads/2026/10/web-receiver-fft-1024x640.png
Researchers discovered an undocumented feature in ESP32 WiFi microcontrollers that allows them to capture raw IQ baseband samples, enabling use as a software-defined radio (SDR) covering 2.4-6 GHz frequencies. This breakthrough enables direction finding and phase-coherent IQ sample capture on arbitrary signals, but not continuous demodulation or decoding without additional hardware.

Don't be fooled–LLMs don't reason

https://wp.technologyreview.com/wp-content/uploads/2026/10/2llm-go.jpg
A 2016 AI match between AlphaGo and Go player Lee Sedol showcased AlphaGo's creative move-making, which was not just intuition but a result of its reasoning capabilities. The system maintained an epistemic state to reason about the game tree and make informed decisions.

Vote on which of Hacker News' challenges for AI have been met

Has this happened? Voting has closed. See the results.

CSS Bed: Classless CSS themes to use as starting points in web development

https://i.imgur.com/mOq7DbU.jpg
This is a collection of classless CSS themes for web development, offering small size and no learning curve. The code provided includes examples of HTML, CSS, and JavaScript.

Memory executives expect RAM shortage to continue through 2028

https://cdn.arstechnica.net/wp-content/uploads/2026/10/GettyImages-1723107474-640x427.jpg
Micron and Samsung executives predict a memory shortage for at least two years due to high demand from AI and server applications. The shortage will limit supply of memory for consumer devices, causing higher prices for PCs, smartphones, and other gadgets.

Cloudflare K2: serverless event streams

https://blog.cloudflare.com/_image?href=https%3A%2F%2Fblog.cloudflare.com%2F_emdash%2Fapi%2Fmedia%2Ffile%2F01M3SXWMA7TC0H6D9G217A3327.png&w=1999&h=1125&f=webp&fit=cover&position=center
Cloudflare K2 is a durable event streaming primitive that decouples producers and consumers, allowing for independent processing of data. It stores events as an ordered log on top of R2 object storage, enabling scalable and long-term retention.

Show HN: Janus – Go binary that runs GGUF models via Vulkan on AMD/Intel/Nvidia

https://opengraph.githubassets.com/b729d497b0049e36f7c59afabc693705eed5c2724ebb5db59809389cfca64a6d/Vibra-Ingenn/Janus
Janus is a single Go binary that runs .gguf models on your machine, exposing an OpenAI-compatible API and web UI. It's designed to be flexible, allowing users to choose their preferred front end.

Butterflies use optical illusions to dodge predators

https://www.essex.ac.uk/-/media/header-images/open-day-image_1000x1000/open-day_image_1000x1000)3.png?mw=300
Butterflies use motion illusions to confuse predators, similar to the barber-pole illusion. Their wing patterns shift angle and point in different directions as they flap, creating misleading motion illusions that help them evade attacks.

Oxygen-deprived underwater zones may not be “dead zones” but clue to early life

Context Language Models

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
Context Language Models (CLMs) learn and manage their own context by updating a file, outperforming existing models in various tasks. CLMs enable both in-context and parametric learning of context-management strategies with natural-language instructions or online reinforcement learning.

ArXiv's Updated Rate Limit Policy

https://i0.wp.com/blog.arxiv.org/wp-content/uploads/2026/10/arXiv-Monthly-Submissions-September-2026.png?resize=1024%2C642&ssl=1
arXiv is introducing a new rate limiting policy to address the surge in submissions, capping authors at 2 submissions per month and 3 active submissions. This aims to distribute moderators' time fairly and protect the arXiv corpus from low-quality papers.

How Singapore's government-run dating service works

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Singapore is testing a government-run dating service called FirstDate, which uses the Gale-Shapley Stable Marriage Algorithm to match users. The pilot program is currently restricted to government workers and will use Singpass to verify identities and share contact details only when both users agree.

How to speed up the Rust compiler in September 2026

The Rust compiler has seen significant performance improvements over the past two months, with a mean wall-time reduction of 4.57% across 629 benchmark measurements. Many individual PRs have contributed to these improvements, including optimizations for borrow checking and trait solvers.