KOReader

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KOReader is a document viewer for E Ink devices. Supported fileformats include EPUB, PDF, DjVu, XPS, CBT, CBZ, FB2, PDB, TXT, HTML, RTF, CHM, DOC, MOBI and ZIP files. It’s available for Kindle, Kobo, PocketBook, Android and desktop Linux.

Document-borne AI worms can self-propagate through Copilot for Word

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A vulnerability in Microsoft's Copilot for Word allows attacker-controlled instructions to be copied into documents, potentially leading to confidentiality impacts through Cross-Domain Prompt Injection Attacks (XPIAs). The attack can self-propagate across trusted document workflows, making it difficult to detect and respond to, and highlighting a broader architectural weakness in current ...

More Tailscale tricks for your jailbroken Kindle

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A jailbroken Kindle can run Tailscale with improved features like SSH, proxy mode, and TUN mode, allowing it to connect to other devices on the network. A Tailscale plugin for KOReader also enables proxy interfaces for reaching content servers from the Kindle or other e-paper devices.

Amiga Graphics Archive

https://amiga.lychesis.net/assets/Artists/FHeimbrecht_Think.png
On this day 18 years ago I launched the Amiga Graphics Archive with the goal of creating a curated gallery with high quality and rare pixel art images made with and for the Commodore Amiga computer. As a special treat, I've added an image by Jim Sachs called Multimedia that I found in a badly scaled version, that I was able to restore pretty close to its original state. See more updates...

SpecForge – A Platform for Authoring Formal Specifications

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SpecForge is a tool for writing and analyzing specifications in the Lilo language, which is used for hybrid systems. It provides features like syntax highlighting, type-checking, and analysis capabilities in VSCode.

User Interfaces of the Demo Scene

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The demo scene, a digital art subculture, has a long history of creating its own tools, including assemblers, trackers, and other software, often with unique and quirky user interfaces. These tools, such as Seka, AsmOne, and ProTracker, were used to create demos, music, and graphics, and often featured peculiar designs and features that were characteristic of the scene.

SQLite in Production: Optimizing WAL Mode, Concurrency, and VFS Layers

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To achieve ultra-low latency in SQLite, configure WAL mode, manage busy handlers, and leverage custom Virtual File System (VFS) layers, and pair WAL mode with the NORMAL pragma to prevent disk synchronization bottlenecks. Properly configuring SQLite with WAL mode, memory mapping, and transaction boundaries can handle hundreds of concurrent requests and millions of queries per day on a modest ...

Lisp moving Forth moving Lisp

The chapter discusses implementing a Forth environment on Lisp, exploring the concepts of abstract registers, threaded code, and duality of syntax, and how these features make Forth a powerful and flexible language. The author also touches on the idea of brevity and how it relates to the productivity of programming languages, and how macros can provide a duality of syntax that allows for more ...

Codex Security

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Codex Security is an open-source CLI and TypeScript SDK for finding, validating, and reviewing security issues in code. It supports macOS, Linux, and Windows, and requires Node.js 22 or later.

Ancient Rome's version of Google Maps: how long to reach the beach

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A Dutch engineer has created OmnesViae, a tool that allows users to plot routes between ancient Roman cities and estimate travel times on foot or horseback. The tool uses ancient sources like the Tabula Peutingeriana and the Antonine Itinerary to calculate routes and provide detailed information on intermediate stops.
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HNewhere detects Hacker News stories, loads comments into a sidebar, and lets you browse discussions without leaving the page.

Substack writers, you need a website

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Writers should not make Substack their digital home, as it's short-sighted and can derail long-term visibility on the internet. Instead, they should treat their website as the definitive source of truth and use platforms like Substack as distribution pipes.

Half-Life ported to Mac OS 9

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Half-Life, a story-driven first-person shooter, has been ported to PowerPC Macintosh computers 28 years after its original release. The game, developed by doctashay using Xash3D FWGS, is playable from start to finish with multiplayer support and additional downloads.

Show HN: Vimgolf.ai – Learn Vim by playing through a map of levels

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Learn by editing with real nvim, racing vimbot on keystrokes. Practice 72 skills, from basics to advanced, with a vimbot to compete against.

Kimi K3 Architecture Overview and Notes

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Kimi K3 is a scaled-up version of Kimi Linear with a new LatentMoE component and attention residuals. It improves inference efficiency and validation loss, but adds 4% training and 2% inference cost.

Cracking Windows Open: Porting RADV to Win32

RADV, an open-source Vulkan driver for AMD GPUs, has been successfully ported to Windows, allowing for a shared codebase and easier debugging across platforms. The project has made significant progress, including running the game Counter-Strike 2, but still requires work on presentation and communication with the proprietary kernel driver to achieve production-readiness.

ReFrame – The EPaper Camera

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reFrame is an experimental camera with a color ePaper display that captures one photo at a time, taking 15 seconds to fully appear. It's open source, allowing users to build their own using off-the-shelf components like a Raspberry Pi Zero and eInk display.

French musician Kavinsky found dead

I'm unable to summarize the input as it appears to be a random collection of characters. Can you please provide a clear and concise input that I can summarize for you?

Steel Bank Common Lisp version 2.6.7

SBCL has released new versions with various bug fixes, optimizations, and minor incompatible changes. The updates include improvements to the compiler, documentation, and platform support, as well as fixes for issues related to type checking, memory management, and foreign function calls.

LearnVector – Andrew Ng's AI company building one‑to‑one learning experiences

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LearnVector aims to revolutionize learning with AI, providing one-to-one experiences that adapt to each person's needs. It plans to collaborate with Coursera and Udemy to offer trustworthy learning experiences.

Teach yourself programming in ten years (1998)

Learning to program requires a long-term commitment of 10 years or 10,000 hours of deliberate practice, not just a few days or hours of book learning. To become a skilled programmer, focus on hands-on experience, working with others, and continually improving your skills over time, rather than relying solely on books or training courses.

Transformer Transformer: A Unified Model for Motion-Conditioned Robot Co-Design

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Researchers propose a unified model called Transformer Transformer that generates a complete robot for a specific task by optimizing its design for a given motion and reward function. The model uses a diffusion transformer trained on RoboTokens, a unified tokenization of robot embodiments, states, and actions, to produce optimized robot designs for various tasks and reward functions.

Delayed Gratification – Proud to Be 'Last to Breaking News'

https://www.slow-journalism.com/wp-content/uploads/2026/07/slow-journalism-magazine-banner-62.jpg
A beautiful quarterly publication which revisits the events of the last three months to offer in-depth, independent journalism in an increasingly frantic world. Read more about DG. Subscribe Slow Journalism in your inbox, plus infographics, offers and more: sign up for the DG newsletter Sign up

PostgreSQL's MVCC is bad. So is everyone else's

https://boringsql.com/og-images/mvcc-is-bad-compared-to-what-og.jpg
PostgreSQL's MVCC design is criticized for causing write amplification, bloated tables, and delayed cleanup, but its critics often fail to consider the trade-offs and costs of alternative designs. Other databases, such as Oracle, MySQL, and MongoDB, have their own versions of MVCC that address some of the same issues but introduce new problems, highlighting the complexity and trade-offs ...

Hubble: Open-source notetaking app for you and your agents

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Hubble.md

Una GPS smart watch – Repairable, USB-C charging, developer-friendly

UNA is a GPS watch designed for repair, upgrade, and sustainability with a replaceable battery and universal charging cable. It offers easy access to internals and a simple focus on activity tracking with customizable apps and experiences.

National Security Determination Threat Posed by Foreign-Produced Robotic Devices [pdf]

You don't have permission to access "http://www.fcc.gov/sites/default/files/robots-nsd.pdf" on this server.

Hooray for the Sockets Interface

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The University of California, Berkeley released version 4.2 of its UNIX operating system in 1983, which included the BSD 'sockets' model of networking and led to a massive increase in access to network services worldwide. The sockets system provided a simple, consistent way to connect to ARPANET systems, making it easy for programs to communicate over networks and revolutionizing online services.

60 Years Ago, a Submerged Submarine Circled the Globe for the First Time (2020)

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The US Navy's nuclear-powered submarine USS Triton circumnavigated the globe underwater in 1960, proving submarines could operate completely submerged. This marked a significant shift from older subs that spent most of their time on the surface.

Zig's Incremental Compilation Internals

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The Zig compiler's incremental compilation feature allows for fast rebuilds by detecting changed code and recompiling only that, patching the resulting bytes into the output binary. The feature involves caching source files' generated ZIR, tracking dependencies between analysis units, and using a linked file abstraction to handle incremental linking.