Dav2d

https://code.videolan.org/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=1.25.0
Anubis is a server protection system using Proof-of-Work to prevent aggressive AI scraping. It requires modern JavaScript features, so disable JShelter or similar plugins for this domain.

Inventions for battery reuse and recycling increase seven-fold in last decade

https://www.epo.org/sites/default/files/styles/ratio_16_9/public/2026-04/029.0300.01%20BattCirc%20-%20A-Web-1920%20x%201080.jpg?h=920929c4&itok=bi0wEBCK
Global battery demand is surging, with 14 million end-of-life batteries expected by 2040. Europe is positioning itself to lead the circular battery economy with innovation and policy support.

Do_not_track

https://donottrack.sh/img/share.png
Users can opt out of telemetry data collection by setting a standard environment variable. This variable should be checked by tools that collect telemetry or make non-essential network requests.

I Do Not Recommend Bitwarden

https://xn--gckvb8fzb.com/i-do-not-recommend-bitwarden/images/cover_hu_55e2ac9963ab03.webp
The author used Bitwarden for several years but decided to move away due to various issues. The company's shift from open-source to a venture-backed model has led to a focus on serving investors over users.

NetHack 5.0.0

NetHack 5.0 is a game update with bug fixes and architectural improvements. It allows cross-compiling and replaces certain compilers with Lua alternatives.

Unsigned Sizes: A Five Year Mistake

https://c3-lang.org/logo.png
C3 is moving to signed sizes by default to avoid common bugs related to unsigned sizes. This change simplifies code and makes it easier to reason about.

Flue is a TypeScript framework for building the next generation of agents

https://flueframework.com/og2.jpg
Flue is a TypeScript framework for building powerful, autonomous agents that can plan, gather context, and problem-solve. It allows developers to create custom agents with an intuitive, programmable interface and deploy them anywhere.

California to begin ticketing driverless cars that violate traffic laws

https://ichef.bbci.co.uk/news/480/cpsprodpb/4bd8/live/9ece7410-4634-11f1-b14f-8905f097c360.jpg.webp
California DMV introduces new rules for autonomous vehicles, allowing police to issue citations to manufacturers for traffic law violations. The rules require AV companies to respond to emergency calls within 30 seconds and penalize them for entering active emergency zones.

Little Magazines Are Back

https://substackcdn.com/image/fetch/$s_!Hf9O!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7882b997-bdd3-4b14-bafc-f8e37b91a010_1280x1001.jpeg
The WSJ Opinion's Free Expression on Substack highlights the resurgence of print culture, with many magazines and newspapers returning to print after initially going digital-only. A new quarterly magazine, Portico, joins this trend, featuring literary subjects and serious arts and letters.

Why does it take so long to release black fan versions?

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Barman – Backup and Recovery Manager for PostgreSQL

https://repository-images.githubusercontent.com/40883045/3075a580-6c0a-11e9-86ec-15c10687b15f
Barman is an open-source tool for PostgreSQL disaster recovery written in Python. It allows remote backups of multiple servers to reduce risk and aid recovery.

How fast is a macOS VM, and how small could it be?

https://eclecticlight.co/wp-content/uploads/2015/01/cropped-eclecticlightlogo-e1421784280911.png?w=200
A macOS VM on a Mac mini M4 Pro with macOS 26.4.1 runs at 98% of host speed, with GPU performance at 95%. A MacBook Neo can run a usable macOS VM with 2 virtual cores and 4 GB of memory.

Roblox shares plummet 18% as child safety measures weigh on bookings

https://image.cnbcfm.com/api/v1/image/108300561-17776388541777638851-45633862048-1080pnbcnews.jpg?v=1777638854&w=750&h=422&vtcrop=y
Roblox's new child safety features weighed on bookings numbers, causing shares to plummet 18% after first-quarter earnings. The company faces over 140 lawsuits and has settled with two states for $23.2 million over child exploitation concerns.

Welcome to Hell Developer

https://noahclements.com/assets/images/ble_hell.jpg
A user's bike ride syncing issue led to reverse engineering a Wahoo ELEMNT Bolt v3's Bluetooth packets and Android APK. A Python script was created to unlock a hidden developer mode by sending a three-byte packet over Bluetooth.

Uber wants to turn its drivers into a sensor grid for self-driving companies

https://techcrunch.com/wp-content/uploads/2026/05/GettyImages-2259104536.jpg?w=1024
Uber plans to equip human drivers' vehicles with sensor kits to collect data for autonomous vehicles. The goal is to democratize the data, but its commercial value may give Uber significant leverage over the sector.

Refusal in Language Models Is Mediated by a Single Direction

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
Researchers found a single direction in chat models that enables refusal of harmful instructions. They developed a method to disable this refusal with minimal effect on other capabilities.

The USB Situation

https://randsinrepose.com/wp-content/uploads/2026/04/usb-situation.jpg
I use a MacBook Pro with a Studio Display, connecting via a braided cable that handles video, power, and other Display connections. The cable's speed is limited by the port type, not the cable itself, so I recommend using a Thunderbolt 5 cable for faster speeds.

Why are there both TMP and TEMP environment variables? (2015)

https://devblogs.microsoft.com/oldnewthing/wp-content/uploads/sites/38/2019/02/ShowCover.jpg
Two environment variables, TMP and TEMP, specify temporary file locations. Their usage varies by program, with some preferring TMP and others TEMP.

Demonstrating the idea of gamma camera imaging [video]

Why IPv6 is so complicated

https://repository-images.githubusercontent.com/523128387/97499e86-0a7d-4dc6-9b27-44aa4e3d345a
IPv6 was chosen over alternatives because it had to be better than IPv4 and other existing protocols, and its design was conservative with only a few key additions. The main reason for IPv6 was bigger addresses, and its coexistence and transition problems were inevitable due to the need for dual stack deployment and translation.

Open Design: Use Your Coding Agent as a Design Engine

https://raw.githubusercontent.com/nexu-io/open-design/main/docs/assets/banner.png
Open Design is an open-source alternative to Claude Design, offering a local-first, web-deployable, and Bring Your Own Key (BYOK) design engine. It uses 31 composable skills and 72 brand-grade design systems.

Dotcl: Common Lisp Implementation on .NET

https://opengraph.githubassets.com/2cd9878641542edfe78a122650037e287c09c70d584f7d68175a272782f9bfe4/dotcl/dotcl
dotcl is a Common Lisp implementation on .NET that runs on Windows, macOS, and Linux. It embeds Lisp in .NET applications and allows writing .NET code in Lisp.

Canonical Under Attack

Welcome to Canonical and Ubuntu Status! View active incident progress, historical component status, and subscribe to email and RSS notifications for components and incidents on the move.

Ti-84 Evo

https://education.ti.com/-/media/ti/education/images/products/product-details/graphing/84-series/84-evo-shared/overview-evo-animated-screen-math-tools-v2.gif?rev=3e5c20f1-f86c-4050-9cb5-9230c63a8684&la=en&h=420&w=480&hash=C7678842D23A4F35210353A5A2B4B4AF
The input is a JSON object containing a list of commands for a text editor. The commands include editing text, formatting options, and inserting links and images.

America's Expanding Domestic Surveillance

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Show HN: Pollen – distributed WASM runtime, no control plane, single binary

https://opengraph.githubassets.com/894c15f04d079458ccc7a8ecb576d5a5715db444ed2ebd3c46fb56108028f9c8/Sambigeara/pollen
Pollen is a self-organizing mesh that turns heterogeneous machines into generic compute. It uses a gossiped CRDT runtime state for workload placement and routing.

Show HN: DAC – open-source dashboard as code tool for agents and humans

https://raw.githubusercontent.com/bruin-data/dac/main/resources/dac_optimized.gif
DAC is a Dashboard-as-Code tool for defining and serving dashboards from YAML and TSX. It supports major databases and generates SQL via a built-in semantic layer.

Artemis II Photo Timeline

https://artemistimeline.com/web/9608627.jpg
An interactive photo timeline of NASA's Artemis II mission — scrub through every crew moment, lunar flyby shot, and audio clip from April 1–10, 2026.

DeepSeek V4—almost on the frontier

https://static.simonwillison.net/static/2026/deepseek-v4-flash.png
DeepSeek released V4 series models, DeepSeek-V4-Pro and DeepSeek-V4-Flash, with 1 million token context Mixture of Experts. They are priced at $0.14/million tokens input and $0.28/million tokens output for Flash, and $1.74/million input and $3.48/million output for Pro.

New research suggests people can communicate and practice skills while dreaming

https://media.newyorker.com/photos/69f38c2c92c2d134aec145ec/2:2/w_2560%2Cc_limit/image2%2520(4).jpeg
Scientists have been studying sleep learning, where people learn new information while asleep, and found promising results, but early studies were flawed. Recent research has shown that sleep can influence behavior and learning, with some people able to solve puzzles and remember information after waking.