You can't trust macOS Privacy and Security settings

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The user demonstrates how an app can gain access to a protected folder on macOS despite being listed as restricted in Privacy & Security settings. This is achieved by using the app to access the folder through an Open and Save Panel, which bypasses the need for user consent and allows the app to retain permanent access to the folder.

WireGuard makes new Windows release following Microsoft signing resolution

Jason Donenfeld released updated WireGuard for Windows and WireGuardNT with new features, bug fixes, and performance improvements. Users can update via the built-in updater or download the latest version from the WireGuard website.

1D Chess

1d-chess is a simplified chess variant where white plays against an AI. Assuming optimal play, white has a forced win by checkmating the enemy king.

Helium Is Hard to Replace

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Helium supply chain disruptions due to the war in Iran have caused prices to spike and shortages to loom, with many industries struggling to find substitutes for the essential gas. Helium's unique properties make it crucial for various applications, including MRI machines, semiconductor manufacturing, and fiber optic cable production.

Industrial design files for Keychron keyboards and mice

https://raw.githubusercontent.com/Keychron/Keychron-Keyboards-Hardware-Design/main/docs/assets/hero-keychron-hardware-design.jpg
Keychron shares production CAD files for compatible accessories and educational use. Users can study and remix designs, but not copy or sell Keychron products.

Bluesky April 2026 Outage Post-Mortem

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Bluesky experienced an 8-hour outage on Monday due to a memcached port exhaustion issue caused by a new internal service that sent large batches of requests without proper concurrency limits. The team eventually fixed the issue by expanding the client IP+port space, but not before experiencing a death spiral of port exhaustion and OOMs due to excessive logging and aggressive tuning of GOGC ...

CPU-Z and HWMonitor compromised

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CPUID website briefly exposed visitors to malware after attackers hijacked its backend, turning trusted download links into malicious ones. The issue has been fixed, but users who clicked on compromised links may have downloaded malware targeting browser data and credentials.

Mysteries of Dropbox: Testing of a Distributed Sync Service (2016) [pdf]

Researchers developed a formal model of file synchronizer behavior using Quviq QuickCheck, a testing framework that generates random test cases. The model was used to test Dropbox, Google Drive, and ownCloud, exposing unexpected behavior in two out of three systems, including situations where data could be lost.

Code is run more than read (2023)

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The author emphasizes the importance of considering users and maintainability in software development, and that code is a means to an end, not an end itself. They also highlight common software development dysfunctions and the need for a stronger ethical stand to not harm users, while acknowledging business realities.

Clojure on Fennel Part One: Persistent Data Structures

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The user created a library called fennel-cljlib that brought Clojure features to the Lua runtime, but it had performance issues due to its copy-on-write approach. They then created a new library called immutable.fnl with a Persistent HAMT implementation, which improved performance and allowed for the development of a Clojure-to-Fennel compiler called ClojureFnl.

FBI used iPhone notification data to retrieve deleted Signal messages

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The FBI recovered deleted Signal messages from an iPhone by extracting data from the device's notification database. The messages were preserved in internal memory due to the defendant's iPhone settings and iOS's data caching capabilities.

Peers vote to ban pornography depicting sex acts between stepfamily members

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The UK government has agreed to ban step-incest pornography following a vote in the House of Lords. The ban aims to reduce harmful content online and protect women and girls from abuse.

How NASA built Artemis II’s fault-tolerant computer

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France to ditch Windows for Linux to reduce reliance on US tech

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France plans to switch from Windows to an open source operating system to regain control over its digital destiny and reduce reliance on US tech companies. This move is part of France's effort to achieve digital sovereignty and reduce dependence on US technology.

I still prefer MCP over skills

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The author is against the "Skills" standard for LLMs, preferring the Model Context Protocol (MCP) for service integration. MCP provides a more practical and standardized way to connect LLMs to services.

Penguin 'Toxicologists' Find PFAS Chemicals in Remote Patagonia

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Scientists used leg bands with chemical sensors on 54 Magellanic penguins to detect pollutants in their environment. The study found PFAS in over 90% of the bands, revealing exposure to pollutants in a remote region.

A new trick brings stability to quantum operations

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Researchers at ETH Zurich have developed a highly stable swap gate for neutral atom qubits using geometric phases. This robust gate can be applied to 17,000 qubits simultaneously with a precision of over 99.9 percent.

Deterministic Primality Testing for Limited Bit Width

The Miller-Rabin primality test was improved upon by Agrawal, Kayal, and Saxena in 2002 with a deterministic polynomial-time algorithm. Deterministic Miller-Rabin can be used for fast primality testing with a tunable parameter to increase correctness.

C++: Freestanding Standard Library

A freestanding C++ implementation operates without a hosted operating system, lacking heap allocation, system calls, and exception support. It provides a minimal subset of the language and library, including headers like <cstdint>, <cstddef>, and <limits>, but excludes components like <thread> and <iostream>.

Supply chain nightmare: How Rust will be attacked and what we can do to mitigate

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The Rust ecosystem is vulnerable to supply chain attacks due to its centralized package repository and lack of a comprehensive standard library. Dev Containers and other security measures can help mitigate these risks, but thinking like attackers and learning their tactics is essential for building secure-by-design systems.

Native Instant Space Switching on macOS

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The user is frustrated with MacOS window management, specifically the inability to instantly switch spaces without animation. They found a solution called InstantSpaceSwitcher, a menu bar app that achieves instant space switching without drawbacks.

US summons bank bosses over cyber risks from Anthropic's latest AI model

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US Treasury secretary Scott Bessent summoned major bank chiefs to discuss cyber risks from Anthropic's AI model Claude Mythos. The model has exposed thousands of software vulnerabilities, prompting concerns about potential hacking risks.

We've raised $17M to build what comes after Git

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GitButler, a tool for software development, has raised $17M in Series A funding to redesign the way developers collaborate. The goal is to create a more social and intuitive platform that removes friction from collaboration and integrates AI tools seamlessly.

DRAM has a design flaw from 1966. I bypassed it [video]

Generative art over the years

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The user has been making generative art since 2016, starting as a programming exercise and evolving into a personal journey of self-expression and discovery. Through experimentation and learning various algorithms and techniques, the user has developed a "vocabulary" of creative tools that inform their artistic decisions and help them convey a personal aesthetic.

Why I'm Building a Database Engine in C#

The author built an ACID database engine called Typhon in C# despite common assumptions that managed languages are unsuitable for high-performance software, and found that modern C# provides features like unsafe code, raw pointers, and constrained generics that allow for efficient and safe development. By leveraging these features and the .NET ecosystem, the author was able to achieve ...

CollectWise (YC F24) Is Hiring

https://bookface-images.s3.us-west-2.amazonaws.com/logos/a5be02a3378f664e1f80f2a84997514d00f9fc1f.png?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAQC4NIECAP7E3APC3%2F20260410%2Fus-west-2%2Fs3%2Faws4_request&X-Amz-Date=20260410T045507Z&X-Amz-Expires=3600&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEF0aCXVzLXdlc3QtMiJGMEQCIFf2XTlbMxZB7UrlleJLwGmBOzglJmW7nDgNQiqkfFfTAiAZiksJWMqHYvNe7NYf7L4gJUEJeSABxM%2Fr5Rjxr2jLlSrlAwgmEAAaDDAwNjIwMTgxMTA3MiIMtRddX0vjWWWRfFg8KsIDSVtYyUv2JkEGliTavvl3zdB6LAbR21W0uX23ApQ2EIe55DAsAy9FHhZSamo0Tl344S%2FgX63RrBhfhzWfeTDgu8y7aFA3WRyS2nrG7QeSW3LWVECGYVAIZvKqP96qDYNVtgDut3Vcxgwto%2FSKF1GOAhz7VstG7NCC38SxLEypMLpzF%2BVhMSTlotBFkq0Zg84%2BR6vP1dUl2hS827vBklwql4PGkm%2B67txMInMdo2GYk0qHnFEKevjYTmhCr5J80hCFKl7yU3%2B8Qy1NloLXUAItgpQ%2BMQwQj9QZKyQRb7mgjlxsKq6pGAniwEQTflj1omj5mAg7kA2bAO1t9eSPoOH%2BxnIBBRt1HfCxBJCbja0xsGVytVc8Hw3er82dhkXDq8rtAtQ63NXB0169jEc4WFxLLnnOhTQ4GaW2769koTeaGCTw%2Bb05MTYv7j3mXwurgysqCYAupMDzjo6qStRzVe%2FE5gXhdwClV%2B4gvHpnuvBgGP2wH8mrplZJoSL9%2FZGm8sVsE1BWGSo2LM3ozo8KsHKFidDjuwQKU0C%2BCww0UuV77g%2F24F4fcRVgRmgfbOyMWpKiUie%2BHFfB6sspbozIcsJT3BL7MIWC4s4GOqYBf6M6h%2BUzsWsk6zn4hadb1Mb9mhIzE5NsWtGcZMh88lUNmwx50dyDl4J5Csi2PAH7l5rU3PrbGHOPbZeW45JU1B8v1SHtd2Kdu6M1M%2B0iBdUlXzdcxHi2UhHiUP9EuIIEt7TsXCOGr7ohYGY9T39a3PjVFfuNSl6vq0WGrI40nnVQxCdE%2FwC1A88Fv2CMPiYetaRu0dfmTZW1LrpD44wdlbmDe%2F025g%3D%3D&X-Amz-SignedHeaders=host&X-Amz-Signature=ab018f88d9beb9683b14dad68a30588cf87251c36f0cd5472246be22f8fd17c4
CollectWise is a Y Combinator-backed startup using generative AI to automate debt collection. They're hiring an AI Agent Engineer to build voice AI infrastructure and reach $10 million in annual revenue within a year.

"Negative" views of Broadcom driving VMware migrations, rival says

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Nutanix claims to have gained tens of thousands of VMware customers due to customer dissatisfaction with Broadcom's takeover strategy. The main drivers for migration are high costs, bundled products, and reduced channel partners, making VMware unaffordable for small businesses.

Show HN: Marimo pair – Reactive Python notebooks as environments for agents

https://opengraph.githubassets.com/177dd4a7de8403c870007868a9e6066a6547ccc5e1bd0f859ed03a168c83e2e3/marimo-team/marimo-pair
The skill declares its own allowed-tools, but Claude Code may still prompt you to approve each Bash call. To avoid repeated prompts, copy the absolute paths to the scripts from the installed skill and add them to your .claude/settings.json (project-level) or ~/.claude/settings.json (global):

Charcuterie – Visual similarity Unicode explorer

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A visual explorer for Unicode. Browse the character set, discover related glyphs, and learn more about the scripts, symbols, and shapes that make up the standard. Charcuterie is still under active development, and feedback is welcome. If you would like to support the project and help make more time for it, consider a donation.