Hybrid Reasoning Agents: LLM agents that think in latent space, act through text

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
We can build Hybrid Reasoning Agents that bridge latent reasoning and text-based interaction, enabling efficient agentic capabilities. These agents improve performance by 10.4% while reducing tokens, inference time, and costs compared to existing LLM agents and frameworks.

William Gibson and the Trademarking of Cyberspace

https://colo.to/pix/guell.jpg
The author claims Autodesk trademarked "cyberspace" and William Gibson retaliated by trying to trademark "Eric Gullichsen", but this is a disputed story. The actual reason for Gibson's objection was Timothy Leary's prank, which was later exaggerated into accepted history.

Someone behind the software

https://karrisaarinen.com/static/linear-assets/081de7ffce667bb13cb63d8b2a1d312e19d747ea1d3818af2c5cc1e5a9445e21.webp
Good products are shaped by the people who make them, reflecting their experience and perspective. Without a shared understanding and unified point of view, software can become a collection of features without character or soul.

There's never been a better time to go into math (by: 3blue1brown) [video]

Free Pascal compiler now supports dynamic packages

The Free Pascal Compiler and Lazarus IDE now support dynamic packages, allowing users to create and install components, controls, and extensions in seconds. This feature enables plugin systems for native Pascal classes and types through dynamic package libraries.

RepRapMicron

https://private-user-images.githubusercontent.com/4644768/436892773-59e6d080-767b-4553-bd26-09339e65fa82.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.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.JOthUX4YiLUcAzf2NtjSVi-yPagPFFNWpBLmThaSvgU
The µRepRap is a 3D printer designed to achieve micron-scale fabrication using common materials, with the goal of advancing microelectronics and MEMS technology. It aims to replicate the capabilities of desktop fabrication on a smaller scale, enabling inexpensive and rapidly-evolving equipment for biological sciences and microelectronics.

Dogs seem to agree with humans that 'bouba' is round and 'kiki' is spiky

https://www.sciencealert.com/images/2026/10/GettyImages-597067015-2560x1440-1-642x361.jpg
Researchers tested 70 dogs' reactions to sounds associated with round and spiky shapes, finding they looked at the correct shape when hearing its sound. The study suggests dogs may have a universal connection between visual and auditory information like humans do.

Show HN: WhatsApp MCP running free on Cloudflare

https://opengraph.githubassets.com/0019ed6e7facf5c056d5439ff946ed63120a6f0bd71cbc83dd8d0eb3dc02dd39/finereli/whatsapp-mcp
This is a Cloudflare server that links to WhatsApp, allowing users to access their chat history and messages. The server stores the data in a SQLite database and can be accessed through various tools, including an agent.

PalmOS Lemmings

https://raw.githubusercontent.com/ardiri/palmos-lemmings/main/images/lemmings-index.png
PalmOS - clone - Lemmings (Lemmings). Contribute to ardiri/palmos-lemmings development by creating an account on GitHub.

DeepSeek search and fetch – $0.75 per 1000 successful requests

https://cdn.deepseek.com/official_account.jpg
The Search API and Fetch API provide access to live web content, allowing agents and RAG applications to search for web pages using a query. Both APIs use the same bearer authentication as the DeepSeek API and return raw JSON results.

"Traditional, but Puzzling"

https://unsung.aresluna.org/_media/traditional-but-puzzling/ogimage.jpg
A Unix error occurred when sending emails to users with mixed case names, due to sendmail's assumption of lowercase user names. The error was a combination of code being case-sensitive and the system reporting "Not a typewriter" as it wasn't meant for user input or output.

One parser, two bugs, many routers: Exploiting Broadcom WiFi across eCos, Linux

https://quentinkaiser.be/assets/hasan-almasi-3DlYPd91ln4-unsplash.jpg
A Broadcom 802.11 vulnerability has been present since 2010, affecting dozens of vendors and millions of devices worldwide, allowing for remote code execution and information disclosure. The vendor was aware of the issue but refused to assign a CVE or publicly disclose it until now, leaving many OEMs without patches.

I built a programming language that LLMs can't use

https://blog.picheta.me/_astro/killswitch-bench-chart.h4QIdnld_Z2TDxI.webp
The author designed an esoteric programming language called KillSwitch to test LLMs' ability to understand and write code, exploiting their weaknesses such as letter counting and safety guardrails. The results of benchmarking major LLM models show varying performance, with some performing better than others.

16-bit fully functional DIY magnetic core memory

Java sealed classes and exhaustive pattern matching

Java 17 introduced sealed classes to explicitly list allowed sub-types, enabling exhaustiveness checking and compile-time safety guarantees. However, adding a new sub-type can break consumers of the code unless everything is recompiled together.

The Intel 8087 chip: floating-point addition and subtraction

https://static.righto.com/images/8087-fadd/8087-datapath-zoom-diagram-w600.jpg
The Intel 8087 chip introduced in 1980 significantly improved floating-point operations, with a speedup of almost 100 times over the 8086 processor. The microcode implementation of addition and subtraction involves complex logic to handle special cases such as infinities, zeros, and Not-a-Number values.

A new way to think about borrow checking (in reverse)

The author discusses a novel approach to borrow checking in programming languages, where the safety check is performed in reverse. This allows for more efficient and accurate memory safety checks, particularly when dealing with complex data structures and loops.

Namecheap just seized and disabled all my domains

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Developing for Debugging (2025)

https://www.davepacheco.net/blog/2025/developing-for-debugging-dns-propagation/propagation-diagram.png
The Oxide control plane uses a distributed database and background tasks to manage DNS services, with the Omicron debugger providing runtime observability for debugging purposes. The debugger generates detailed reports on DNS propagation, allowing developers to quickly identify issues and improve system reliability.

SIGSALY: Churchill's top secret hotline to the president

https://www.iwm.org.uk/sites/default/files/styles/responsive_w480/public/2022-11/large_000000_4.jpg.webp?itok=eQCn5uT7
Churchill War Rooms housed a top-secret transatlantic telephone system called SIGSALY, used by Churchill and Roosevelt to communicate securely during WWII. The system allowed for private conversations across the Atlantic Ocean, with 12 terminals installed worldwide, including one in London's Selfridges department store.

"I'm on a war footing": Terry Tao and the crisis in math

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Show HN: The Zelda timeline to catch up before the Ocarina of Time remake

https://legendofhyrule.com/opengraph-image?a05cedcc808b59be
The Legend of Zelda series spans multiple timelines, with various eras and games connected by a shared history. The timeline branches into different paths after Ocarina of Time, including the child, adult, and fallen-hero eras.

Open MicroManipulator – A sub-micrometer 3D motion control plattform

https://raw.githubusercontent.com/0x23/MicroManipulatorStepper/main/images/overview.gif
This project is an open-source, low-cost motorized XYZ Micro-Manipulator with submicron precision for applications like optical alignment and microscopy. It can be controlled via G-Code commands over a USB serial interface.

I electrified my push scooter with a power drill

https://eddieabbondanz.io/post/shop/drill-powered-scooter/images/1.jpg
The author converted their Razor A5 Lux scooter to electric using a Hercules cordless drill, 3D printing, and various parts. The result is a functional but rough-around-the-edges e-scooter that they enjoy riding at autocross events.

The Elizabeth Holmes documentary “You Can See Everything” is deceiving

https://substackcdn.com/image/fetch/$s_!KF3C!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc7d83514-b59e-49ee-867d-b0273db2251d_1456x906.webp
The documentary "You Can See Everything" masterfully manipulates viewers' emotions, forcing them to confront how much of their opinion of Elizabeth Holmes comes from the story's narrative rather than facts. The film expertly uses camera angles, editing, and framing to create a visceral experience that challenges viewers' perceptions and biases.

Types of types: Haskell's Kind system

The author learned about Haskell's Kind system while working on a Redis server clone, discovering its ability to classify and manipulate type-level constructs. They built higher-Kinded types (HKTs) using the Wrap and Compose functions, which take other type constructors as arguments, allowing for more expressive and reusable code.

Florida's HOAs and condo associations are making the housing crisis worse

https://hoaspy.com/og-image.png
Florida has 104,659 HOA associations with 48,999 court records and 460,412 liens against homes. These associations foreclose on their own members more than any other state combined.

Parser Combinators

https://t3.at/assets/2026-04-16-parser-combinators/1.png
The author explains parser combinators as a way to parse structured data from unstructured text, using functions that combine and transform parsers. They demonstrate three fundamental combinator functions: pSeq (sequence), pMap (map), and pRepeat (repeat).

Beyond Tetris: The other games of Alexey Pajitnov [video]

Show HN: Sphinx – A hook that quizzes you on your AI's code before shipping

Sphinx is a Git hook that asks questions about code before shipping, built for minimal tokens and compatible with various coding agents. It helps reviewers understand changes by asking questions when things go wrong or succeed.