Google Hits 50% IPv6

74 barqawiz 2026-06-21 08:59:05 UTC blog.apnic.net Llama Share 47

Google's measurements show IPv6 reaching 50% for the first time, but APNIC Labs data shows a 42% worldwide IPv6 capability. IPv6 adoption varies across regions and economies, with some countries like India and Saudi Arabia showing different adoption curves.

A 3D voxel game engine written in APL

37 sph 2026-06-21 08:59:05 UTC github.com/namgyaaal Llama Share 6

This project aims to create a voxel game using APL notation, with installation instructions for macOS and Linux. Compilation on Windows requires SDL3 dev libraries and cmake-gui, with shaders compiled using ./compile_shaders.sh.

Developers don't understand CORS (2019)

196 toilet 2026-06-21 01:59:05 UTC fosterelli.co Llama Share 104

Web developers often misunderstand how CORS works, leading to security vulnerabilities like the recent Zoom vulnerability, which was caused by bypassing CORS to access a localhost webserver. A secure implementation would involve implementing a REST API with CORS headers and a Content Security Policy to prevent unauthorized access.

Zigzag Decoding with AVX-512

74 luu 2026-06-21 03:59:05 UTC zeux.io Llama Share 9

The author experimented with two optimizations for AVX-512 vertex decoding in meshoptimizer, but only one made it in. The first optimization used a branchless formulation to decode zigzag encoded integers, while the second used AVX-512 predication support to compile the branching variant directly.

Loupe – A iOS app that raises awareness about what native apps can see

285 Cider9986 2026-06-20 22:59:05 UTC github.com/mysk-research Llama Share 106

Loupe is an iOS app that shows device fingerprinting data from public APIs, helping users see what apps can quietly learn about their device. It's free and open source, with a Mac version in development.

Renting a sewing machine from the library

231 sohkamyung 2026-06-20 22:59:05 UTC bbc.com Llama Share 121

Finland's libraries are thriving as community service centers, offering more than just books, and promoting social inclusion and democracy. They are valued for their role in helping societies function, with over 700 libraries serving Finland's 5.6 million people.

Epoll vs. io_uring in Linux

165 Sibexico 2026-06-20 23:59:05 UTC sibexi.co Llama Share 37

The user discusses the differences between epoll and io_uring for handling asynchronous I/O on Linux, highlighting io_uring's efficiency and reduced syscall overhead. io_uring is recommended for modern Linux projects due to its improved performance and architectural changes.

Slow breathing modulates brain function and risk behavior

207 croes 2026-06-20 22:59:05 UTC cell.com Llama Share 50

Prolonged exhalation breathing can increase cardiac parasympathetic activity, leading to enhanced reward sensitivity and increased risky choices. This effect is associated with changes in brain activity in regions involved in reward processing, such as the ventromedial prefrontal cortex and precuneus.

Running MicroVMs in Proxmox VE, the Easy Way

38 zdw 2026-06-21 05:59:05 UTC taoofmac.com Llama Share 1

The user created a Debian package called pve-microvm that adds QEMU's microvm machine type as a first-class managed guest in Proxmox VE, allowing for fast and isolated VMs with a custom kernel and minimal virtio-only environment. The package supports 21 guest OS types, including Linux, NetBSD, and Plan9, and provides features like sub-300ms boot times, virtio devices, and vsock CID for ...

Show HN: TownSquare, a tiny presence layer for websites

177 cauenapier 2026-06-20 22:59:05 UTC townsquare.cauenapier.com Llama Share 88

TownSquare is a web platform where users can interact without accounts or algorithms, sharing a virtual space. It features simple controls for movement, chat, and social interactions, creating a fun and playful online experience.

15-minute at-home Lyme disease tick test

115 bookofjoe 2026-06-20 23:59:05 UTC bostonglobe.com Llama Share 59

LymeAlert is a 15-minute tick test that can detect Lyme disease, priced at $40 per test. It's designed to help people avoid unnecessary doctor visits and antibiotic doses by testing ticks for the disease.

Building reliable agentic AI systems

105 sarangk90 2026-06-21 04:59:05 UTC martinfowler.com Llama Share 21

Bayer AG developed the Preclinical Information Center (PRINCE) platform to address pharmaceutical industry challenges in drug development, leveraging Agentic Retrieval-Augmented Generation and Text-to-SQL to integrate decades of safety study reports. PRINCE evolved from a keyword-based search tool to an intelligent research assistant capable of answering complex questions and drafting ...

Windows UI evolution: Clicking an unassociated file

14 jandeboevrie 2026-06-21 06:59:05 UTC movq.de Llama Share 0

The user explored how Windows handled opening non-executable files from 1989's Windows 386/2.11 to 2015's Windows 10, noting changes in file type association UI and functionality. The user observed a shift from basic dialogs to more complex and flat interfaces, with varying levels of interactivity and options for selecting programs to open non-executable files.

Excessive nil pointer checks in Go

38 ingve 2026-06-21 05:59:05 UTC konradreiche.com Llama Share 29

Defensive programming in Go should focus on checking inputs, bounds, and pointers before dereferencing them, but not with nil checks that silently handle impossible states. Instead, establish invariants and model intentional optional states to ensure the system can rely on guarantees, rather than relying on fear-driven clutter with nil checks.

Your brain was never designed for this much bad news

194 colinprince 2026-06-21 04:59:05 UTC sciencedaily.com Llama Share 129

Humans are overwhelmed by bad news due to their natural negativity bias, which was adaptive in the past but now causes stress and fatigue. To manage news fatigue, people can contain news consumption, choose depth over volume, and identify actions they can take to feel more in control.

SMPTE Makes Its Standards Freely Accessible

261 zdw 2026-06-20 17:59:05 UTC smpte.org Llama Share 79

SMPTE has made its entire Standards catalog freely available to the global media technology community. This move aims to accelerate adoption and implementation, strengthen interoperability, and drive innovation in the industry.

UHF X11: X11 Built for VisionOS and Apple Vision Pro

205 zdw 2026-06-20 17:59:05 UTC lispm.net Llama Share 40

visionOS receives X11 calls from clients and vintage machines, opening each top-level window separately. X authority cookies are generated on device and copied to clients for secure connections.

A tale of two path separators

5 dbaupp 2026-06-21 08:59:05 UTC alexwlchan.net Prefix Share 0

I was reminded yesterday that macOS will happily let you create files that appear to have slashes in their name, as shown here by the Finder: I made the folder with the “New Folder” button in Finder, and the text file by saving it in TextEdit. Even though I understand how this works, it breaks my brain a bit every time. If you didn’t know how this works, you could get a clue by running ls: ...

Guide to the TD4 4-bit DIY CPU

35 andrewstuart 2026-06-21 02:59:05 UTC philipzucker.com Llama Share 3

The user built a 4-bit CPU kit called TD4 from Aliexpress, which has 2 registers, LEDs, and 16 bytes of program ROM, and wrote notes to help others understand its architecture and usage. The user encountered some difficulties during assembly, including soldering the USB connector and understanding the directionality of surface mount diodes, but eventually got the CPU working and wrote a ...

DOS Game "F-15 Strike Eagle II" reversing project needs DOS test pilots

252 LowLevelMahn 2026-06-20 15:59:05 UTC neuviemeporte.github.io Llama Share 65

The F-15 Strike Eagle 2 reconstruction project has made significant progress, with all C code rewritten and data moved from assembly to C. The project is now open for testing and bug reporting, with the latest release v0.9.1 available for download.

Unauthorized alert sent to cell phones across Brazil

133 zdw 2026-06-20 20:59:05 UTC cnn.com Llama Share 94

Unauthorized alert with "misantropi4" message sent to cell phones in Brazil, suspected to be a hacker attack. Brazilian government is investigating the incident and restoring the National Civil Defense's warning platform.

Carlo Ginzburg, Who Told the History of the Obscure, Dies at 87

7 benbreen 2026-06-21 07:59:05 UTC nytimes.com Full Share 1

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When I reject AI code even if it works

180 vnbrs 2026-06-21 01:59:05 UTC vinibrasil.com Llama Share 99

Using AI for coding generates a large volume of code that requires human review to ensure quality and scalability. Engineers should guide AI coding agents to produce adequate solutions, not rely solely on AI reviews.

Proportional-Integral-Derivative Controllers

27 dhorthy 2026-06-21 04:59:05 UTC en.wikipedia.org Llama Share 10

A PID controller is a feedback-based control loop mechanism used in industrial control systems to manage machines and processes with continuous control and automatic adjustment. It compares the desired target value with the actual value of the system and applies corrective actions to bring the system to the desired setpoint using proportional, integral, and derivative methods.

Whole cross-sectional human ultrasound tomography

73 lnyan 2026-06-20 22:59:05 UTC nature.com Llama Share 13

Researchers developed a new system for whole cross-sectional ultrasound tomography, enabling imaging of the entire human cross-section in reflection and transmission modes. This system has potential applications in clinical needs, such as adipose thickness assessment and video-rate biopsy needle localization.

Linux eliminates the strncpy API after six years of work, 360 patches

204 simonpure 2026-06-20 21:59:05 UTC phoronix.com Llama Share 180

Linux 7.2 has eliminated the deprecated strncpy API due to bugs and performance issues. It has been replaced with alternative functions like strscpy() and memcpy().

Temporary Cloudflare accounts for AI agents

209 farhadhf 2026-06-20 11:59:05 UTC blog.cloudflare.com Llama Share 111

Cloudflare updated Wrangler to allow agents to deploy code without signing up for an account. Agents can now use the --temporary flag to deploy code instantly, with a 60-minute claim window to make the account permanent.

Alice is impatient

95 birdculture 2026-06-20 21:59:05 UTC brooker.co.za Llama Share 28

You're measuring time in requests or outages, but users like Alice and Alex experience time in seconds and minutes, leading to a discrepancy in perceived wait times. This is due to the inspection paradox, where users experience a time-weighted version of the latency distribution, resulting in a higher mean time to recovery than the actual MTTR.

The 100k Whys of AI

108 surprisetalk 2026-06-21 05:59:05 UTC lcamtuf.substack.com Llama Share 56

AI-generated text can be indistinguishable from human-written text under statistical tests, but it often exhibits distinctive patterns and mannerisms when used repeatedly. This can be seen in the similarities in AI-generated book titles and covers on Amazon, which can be a fuzzy signal that humans can pick up on.

The Lost Story of Alan Turing's "Delilah" Project

21 asdefghyk 2026-06-21 05:59:05 UTC spectrum.ieee.org Llama Share 1

Alan Turing worked on a top-secret voice-encryption system called Delilah during World War II. The Bayley papers, recently auctioned, reveal Turing's electrical engineering skills and his work on Delilah, a portable voice-encryption system.