I've factored the RSA keys of a Certificate Authority from the 90s

https://mcpherrin.ca/assets/rsa/netscape-cert-viewer.png
The author explores the security of RSA cryptography, noting that small keys can be factored on a modest desktop computer and some old root certificates are still vulnerable.

TALA Is Open-Source

https://d2lang.com/blog/tala-layouts/fulcro_rad/tala.svg
TALA, an auto-layout algorithm, is now open-source under the same license as D2. It offers a novel orthogonal layout engine with customizable node positions and sizes for various use cases.

Jellyfin 12.0

https://jellyfin.org/assets/images/modern-ui-84f59788e646314ddda43d79c11c4b31.png
Jellyfin 12.0 is a stable release with major features and improvements, including performance work, support for books and comics, and security fixes. The new version drops the major version from its naming scheme to reflect significant changes in the library database.

Watch Los Angeles get built, one building at a time (1880–2026)

One box per building standing today, appearing in the year it was built. What was torn down along the way isn't here, so this is the surviving county, not the county as it was.

Leaving VMware just got harder after Broadcom pulled VDDK downloads

https://www.virtualizationhowto.com/wp-content/smush-webp/2026/09/vmware-vddk-downloads.png.webp
Broadcom has removed the public download of VMware's Virtual Disk Development Kit (VDDK), a crucial library for many migration tools, causing concern among customers and vendors. This move may hinder their exit from vSphere to other platforms.

John Margolies' photographs of roadside America

https://pdr-assets.b-cdn.net/collections/john-margolies-photographs-of-roadside-america/48635803258_e09b8cc08f_b.jpg?width=1024&height=765
Lawrence Ferlinghetti and John Margolies documented the American roadside, with Margolies focusing on quirky buildings and signs. His archive of 11,710 photographs is now available online for free at the Library of Congress.

Show HN: Stuxnet – A reconstructed source code of the infamous cyber-weapon

https://opengraph.githubassets.com/847b61b43699e80cb4febc6329096a40e543bbe154901544beacc96408e5fc6b/Sadpainy/Stuxnet
This repository contains a reconstructed source code of the Stuxnet worm for educational and research purposes. It is not intended for malicious use and preserves the original logic while structuring the codebase for readability and analysis.

Trusting-Trust Attack against an Entire Linux Distribution

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
A trusting-trust attack can be performed on GNU strip, a build utility, by tampering with its binary seed in the NixOS Linux distribution. This allows for propagation of malicious code into subsequent builds and final standard environment.

Scientists observe Einstein's gravity in the quantum world

WeatherNext 3

https://deepmind.google/static/images/fallback/video_poster_fallback_light.57b61d57842a.jpg
WeatherNext 3 can predict all surface variables – including weather station targeted temperature and humidity at 5km resolution, and other surface variables like wind at 10km. This results in significantly more accurate forecasts – even in locations the model hasn’t encountered in training.

216M Spy TVs – The LG Smart TV Problem [video]

Show HN: Jigsaw Haiku

Show HN: NYC MapTap – Learn NYC neighborhoods (with subway routes when you miss)

Show HN: Interactive Tree of Life

https://ptree.org/icon/ptree-card.png
Explore life across 11 scientific trees, comparing ancestry, traits, fossils, habitats, and sources.

Emacs Bedrock 2.0

Bedrock version 2.0 is available for Emacs, requiring version 31, and offers improved defaults with sample configurations for popular packages. The new release includes incremental improvements over the previous version without breaking compatibility with older versions of Emacs.

Caltech Mathathon – first hackathon ever devoted to research level mathematics

https://mathathonchallenge.com/img/openai.png
A complex structure was shown in a six-sphere, raising questions about AI's role in math. A global competition will be held to solve open conjectures and build new theories using frontier models, with prizes awarded for promising results.

Finding a bug in Dummit and Foote's Abstract Algebra

The author struggled with a proof exercise in Dummit and Foote's abstract algebra textbook, which claimed that a function is injective if and only if it has a left inverse. The author found this statement to be false after testing it with an empty set A and a singleton set B.

Icy Moons Are Ocean Worlds

This Month in Ladybird – August 2026

https://ladybird.org/assets/img/newsletter-aug-2026-debugger.png
Ladybird browser has improved with new features like video playback on Twitch, JavaScript debugging in DevTools, and downloads that can be paused and resumed. The engine performance has also been enhanced with a new style engine, layout caching, and CSS animations running off the main thread.
https://blog.yosyshq.com/static-2022/colorlight_5a75b.jpg
The Colorlight 5A-75B is a low-cost FPGA development board featuring an Lattice ECP5 FPGA, priced around $20-$25. It's a receiver card for LED displays and offers features like Gigabit Ethernet, SDRAM, and on-board peripherals.

Catching Crumbs from the Table (2000)

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The nature.com website is not displaying properly due to an outdated browser, and it's recommended to upgrade for a better experience. The user can sign up for the Nature Briefing newsletter by entering their email address.

Decoding the NEC V20 Microcode

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjskHCopDIB5dU1q0D0lGEI6lqkA6e9U01Bym_U9Bv1WKKfrLJtFfe33H2Y-Ewu_AKW7ToWmFMBLHQtvAzR1kbQWV-bOVJej0EPqefkGYf0LRRw8rzQbed490tfEjo85vWnxPhfffnec9fraZJku7ULbAj-jIB0gBksBozA8Jxhkc_L4a1zmB7dFp18mEgT/w640-h558/v20_die_shot_large_01.jpg
A user has successfully decoded the NEC V20 microcode, allowing for accurate emulation of the CPU. The decoding process involved analyzing die photography and using machine learning to identify bits in a 29,928-bit ROM array.

Everything is free now, so why not a floating orb in my IDE

It’s really hard to grasp that everything is free now! So why not have a floating orb as a screensaver in the middle of your IDE? In terms of this UI, it’s a custom IDE I made myself, with agents and terminals and everything. For the agents it’s especially neat that the composer works with my custom keybindings, just like my editors. Anyways, The left and right lanes are pretty static; the ...

Simple Is Not Small

https://jyn.dev/assets/rope.png
The author discusses the importance of simplicity in programming, contrasting it with coupling and complexity. They argue that small programs can be coupled, while simple ones are decoupled and easy to maintain.

Keep Our Servers Running

https://blog.archive.org/wp-content/uploads/2026/08/match-graphic-25-plus-click-to-donate-1024x1024.png
The Internet Archive aims to provide universal access to human knowledge, and its infrastructure relies on donations. Monthly gifts help maintain servers, ensuring books are readable and websites are accessible for future generations.

Macbeth and His Problems

https://porticoquarterly.com/wp-content/uploads/2026/06/Macbeth_2015-1200x630.jpg
The play Macbeth is notoriously difficult to stage due to its complex magic and supernatural elements, tone, and motivation. The script's ambiguity regarding the nature of these elements can be challenging for audiences.

Methods for Random Gradients (2024)

https://storage.ghost.io/c/e5/51/e5518248-64c6-46dd-941d-a7fd73d59c60/content/images/2024/11/20241106-074836.png
The author experimented with generating random gradient images, including using heightmaps and Scalable Vector Graphics (SVG), for OpenAI's visual identity. They used AI image generation models like DALL·E 2 to create textural gradient images with various styles and effects.

bzip3

https://camo.githubusercontent.com/e60efbfdc1e69aaf158f5c64e16ac70b7c91025d7831c69832c32a1cb499f657/68747470733a2f2f7265706f6c6f67792e6f72672f62616467652f766572746963616c2d616c6c7265706f732f627a6970332e7376673f636f6c756d6e733d33
Bzip3 is a high-performance compression library with higher ratios and better performance, built on order-0 context mixing entropy coder and Burrows-Wheeler transform. It's licensed under LGPLv3 only, with contributions from Ilya Grebnov and others.

The Dataflow Model Revisited

The Dataflow Model paper proposed a unified model for batch and streaming engines, emphasizing event time and strong consistency. Its core foundations have aged well, but the analytical interface was flawed in its implementation.

She Also Found It at the Movies

https://hedgehogreview.com/images/identity/iasc/letters-logo-white.png
The author admires film critics David Edelstein, Anthony Lane, James Agee, and Pauline Kael for their unique writing styles and approaches to movie criticism. The author finds that Kael's autobiography is a masterpiece of storytelling that explores the complexities of American identity through her experiences with movies.