Dav2d

https://jbkempf.com/images/JBK_haut.jpeg
The dav2d project is a fast decoder for the new AV2 codec, developed by VideoLAN community members to provide a small, fast, portable, and correct decoder for real applications. It builds on the success of AV1 and aims to improve compression efficiency, with reported gains of up to 25% compared to AV1.

Backpressure is all you need

The author discusses the limitations of using Large Language Models (LLMs) in software development, specifically the need for automated backpressure to prevent bugs and low-quality code. They propose adding various checks and reviews to the development process, including automated tests, types, linters, end-to-end tests, canary releases, and review agents.

The Website Specification

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The website specification outlines essential features for decent websites, linking to source standards like WHATWG and WCAG. It's open for contributions and available as an MCP server and Agent Skill.

London's Free Roof Terraces

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The writer visited several City roof terraces, finding some to be pointless or closed, but The Garden at 120 and The Lookout stood out. The Garden at 120 offers a 360° panorama with long-distance views, while The Lookout provides better views than Horizon 22.

Domain expertise has always been the real moat

Agentic AI tools have changed software development by allowing non-experts to produce correct outputs without understanding the underlying code. The most valuable professionals now have both technical skills and deep domain knowledge to verify the correctness of generated code.

Security Envelope Pattern collection – S.E.C.R.E.T

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S.E.C.R.E.T. is a group of collectors creating a standardized security envelope pattern collection. They celebrate the craft of secrecy and the mystery of security envelope patterns.

What it's like to have your insulin pump die while you're on vacation

https://bear-images.sfo2.cdn.digitaloceanspaces.com/lauram/img_8111.webp
I have type 1 diabetes and use an insulin pump to stay alive. My pump failed during a week-long vacation in Santa Fe, causing me to waste insulin and deal with frustrating issues.

Shantell Sans (2023)

https://shantellsans.com/assets/shantell-martin-portrait.jpg
Shantell Sans is a variable font created by Shantell Martin and Stephen Nixon, inspired by her handwriting and Comic Sans. It offers a wide range of styles, from friendly to high-energy, and supports over 380 languages.

One year of Roto, a compiled scripting language for Rust

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Roto is a statically typed, JIT-compiled scripting language for Rust applications, offering faster performance than other scripting languages. It has been updated with new features, bug fixes, and improved integration with Rust, making it more complete and user-friendly.

Avian Visitors

https://avatars.githubusercontent.com/u/48384497
Teddy built a bird tracking station using Raspberry Pi and BirdNET-Pi, creating a collage of birds heard near his apartment.

A pictorial introduction to differential geometry (2017)

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
The article presents differential geometry pictorially for physics students, focusing on tools for understanding Maxwell's equations. It aims to represent Maxwell's equations as 3 pictures for intuitive understanding.

Show HN: Breathe CLI – Paced resonance breathing in the macOS terminal

https://repository-images.githubusercontent.com/1254611876/129922ae-a5f0-4e47-b8df-6ab3ac572954
This is a terminal app for macOS that paces resonance breathing for vagal tone training. It uses a single file with no dependencies and enforces safety constraints to prevent adverse effects.

A Gentle Introduction to Lattice-Based Cryptography [pdf]

The document discusses lattice-based cryptography and the security of quantum-safe cryptographic schemes. It explains the theory of lattices, defines fundamental computational lattice problems, and describes the LLL and BKZ lattice basis reduction algorithms. The document also discusses the security of the Kyber key encapsulation mechanism and the Dilithium digital signature scheme, which are ...

I found a seashell in the middle of the desert

https://raw.githubusercontent.com/Hawzen/I-found-a-seashell-in-the-middle-of-the-desert/main/media/ancient_fossil.jpeg
A person found a rock resembling a seashell in the Alghat desert, Saudi Arabia, and attempted to identify the shell's shape using a dataset of 7894 species and 59244 images. They used Principal Component Analysis to reduce the shape's dimensions from 256 to 2.

The AV2 Video Standard Has Released (Final v1.0 Specification)

AV2 is a next-generation video coding specification from AOMedia offering superior compression efficiency and support for AR/VR, split-screen delivery, and wider visual quality range. It provides a comprehensive specification document and reference software for implementation.

Accenture to acquire Ookla

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Accenture acquires Ookla to strengthen network intelligence and experience with data and AI for enterprises. The acquisition will help clients optimize mission-critical Wi-Fi and 5G networks.

Racket v9.2

Racket release includes fixes for match form, Typed Racket, and Scribble, as well as improvements to foreign interface and documentation. New contributors are welcome to join the community and help with the project.

Telli (YC F24) is hiring in engineering, design, and GTM [Berlin, on-site]

Companies are using AI agents to have natural conversations with customers at scale, but building effective voice agents is a hard task. telli helps businesses build, deploy, and improve AI voice agents to drive real outcomes.

Associative learning turns DEET from aversive to appetitive in Aedes aegypti

Microsoft Office 2019 and 2021 for Mac view-only conversion

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Microsoft Office 2019 for Mac will stop editing and saving files on July 13, 2026, due to a license-validation certificate expiration. Users can update to build 16.83 to avoid this change, but Office 2019 users have no update path.

Mechanical Pencil: An illustrated celebration of the engineering around us

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The site shares engineering tear-downs of everyday products, blending art and engineering to visualize how things work. It's a personal project to appreciate and understand product mechanisms in a beautiful way.

Openrsync: An implementation of rsync, by the OpenBSD team

https://opengraph.githubassets.com/d5beac9fa9066e8087ccf65a80f22668b2badaeb85e023134fd600e6c2a954b9/kristapsdz/openrsync
openrsync is a BSD-licensed rsync implementation compatible with modern rsync protocol 27, primarily designed for OpenBSD but also portable to other UNIX systems. It uses a subset of rsync's command-line arguments and is part of the rpki-client project.

Voxel Space (2017)

https://s-macke.github.io/VoxelSpace/images/webdemo.gif
In 1992, Comanche used a 2.5D Voxel Space engine with a 1024x1024 height and color map for rendering. The engine used a simple painter algorithm to draw vertical lines based on height and color data.

Zig ELF Linker Improvements Devlog

The Zig project has made significant progress in 2026, including improvements to the ELF linker, incremental compilation, and the build system, which has made zig build faster and more efficient. The project has also made changes to the standard library, including preferring the Native API over Win32 and deleting redundant code from the libc subproject, which has improved compilation speed ...

United Airlines 767 Returns to Newark After Bluetooth Name Sparks Alert

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A United Airlines Boeing 767-400ER bound for Palma de Mallorca, Spain, made a mid-Atlantic U-turn after a passenger's threatening Bluetooth speaker name triggered a security alert. Early reports indicate that a teenage passenger onboard named their device 'BOMB,' and the discoverable name escalated quickly into a bomb-threat response. By creating an account, you agree to our Terms ...

Pandoc Templates

https://pandoc-templates.org/img/q3auu6iBM7-1000.jpeg
Pandoc templates for PDF, LaTeX, HTML and Word. Easily convert documents with customizable templates for reports, articles, and more.

Mysteries of the Griffin iMate

https://www.projectgus.com/images/2023-04/derivatives/article/1x/keyboard.webp
The user restored an Apple Extended Keyboard II and attempted to use a Griffin Technology iMate ADB-USB adapter, but it failed to work consistently due to electrical noise issues. The user discovered that the adapter's undocumented battery was the cause of the problem and that adding a decoupling capacitor resolved the issue, allowing the adapter to work correctly.

wolfSSL releases a new product; wolfCOSE a zero alloc C embbedded COSE stack

https://opengraph.githubassets.com/3e5ef9b40bbfd31081d8224cb0ec5e6702a777c78ef050707ab461850498c679/wolfSSL/wolfCOSE
wolfCOSE is a lightweight C library implementing CBOR and COSE using wolfSSL as the crypto backend. It supports all six COSE message types with a minimal build size of 7.5 KB.

Cheese Paper: a text editor specifically designed for writing

https://brie.gay/images/cheese-paper/light%20scene.png
Cheese Paper is a text editor for writing fiction that supports syncing and stores notes with each scene in a minimal file format. It's an open-source project with a simple file format and customizable themes.

Ahoy, DECmate II the little PDP-8 that could

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Digital Equipment Corporation attempted to keep the PDP-8 minicomputer market-relevant by turning it into a word processor and later a desktop microcomputer, resulting in the DECmates line. The DECmate II, released in 1982, was a cheaper alternative to the DECmate, running much of the same software and priced to sell at $3740 with a bundled monochrome VR201 monitor and specialized LK201 keyboard.