How NASA built Artemis II’s fault-tolerant computer

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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.

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.

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.

RAM Has a Design Flaw from 1966. I Bypassed It [video]

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 always welcome. If you would like to support the project and help make more time for it, consider a donation.

Apple's New iPhone Update Is Restricting Internet Freedom in the UK

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Apple's iOS 26.4 update requires UK users to prove age and identity to access the internet, risking privacy and freedom of expression. This mandatory ID check excludes millions of adults, particularly low-income and disabled people, and may lead to a national digital ID system.

PicoZ80 – Drop-In Z80 Replacement

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The picoZ80 is a custom PCB designed to replace a physical Z80 in a host or industrial computer with a faster CPU, more memory, virtual devices, networking, and rapid application loading from an SD card. It hosts an RP2350B microcontroller, a dual-core 150MHz Cortex-M33 device capable of running at up to 300MHz, and an ESP32 co-processor for WiFi and Bluetooth connectivity.

The Raft Consensus Algorithm Explained Through "Mean Girls"

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Raise your hand if you’ve ever been personally victimized by the Raft Consensus Algorithm. Understanding Raft can be tough. In fact, I’ve seen conversations recently on social media in which actual technical leaders of infrastructure companies demonstrate a lack of understanding (!). Point being, you’re not alone. Get in, losers, we’re going back to (Hollywood) high school. Raft is a ...

Reverse engineering Gemini's SynthID detection

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Researchers reverse-engineered Google's SynthID watermarking system using signal processing and spectral analysis. They developed a multi-resolution spectral bypass (V3) that achieves high PSNR and can remove the watermark from images of various resolutions.

Unfolder for Mac – A 3D model unfolding tool for creating papercraft

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Unfolder generates 2D parts for 3D models in seconds with optimized unfolding. It allows customization and export in various formats for printing, editing, or CNC cutting.

Principles of Mechanical Sympathy

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Modern hardware is remarkably fast, but software often fails to leverage it. Mechanical sympathy - a concept borrowed from racing and popularized in software by Martin Thompson - is the practice of creating software that is sympathetic to its underlying hardware. This practice can be distilled into a set of everyday principles: Predictable memory access, awareness of cache lines, the ...

Moving from WordPress to Jekyll (and static site generators in general)

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We migrated our site from WordPress to Jekyll for speed and ease of change, leveraging AI tools like Claude Code to streamline the process. The new site features improved search functionality, semantic clustering, and better SEO capabilities.

Research-Driven Agents: When an agent reads before it codes

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A coding agent was used to optimize the performance of the llama.cpp neural network model, resulting in a 15% speedup on x86 and 5% speedup on ARM. The agent's success was due to its ability to read papers and study competing projects before writing code, allowing it to identify optimizations that code-only agents would miss.

Top laptops to use with FreeBSD

whether devices have degraded functionality, reducing the score by 0.5-1.5 based on severity and how important it is to the laptop experience (wi-fi/graphics weighted more)

Many African families spend fortunes burying their dead

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In Ghana and other African countries, funerals are extravagant and expensive, serving as a costly signal of kinship group loyalty and wealth destruction. This kinship culture hinders economic growth by preventing individuals from accumulating wealth and making financial decisions for themselves.

Hegel, a universal property-based testing protocol and family of PBT libraries

https://hegel.dev/_astro/hedgel-small.CU9UUzkn.webp
Hegel is a universal property-based testing protocol and family of libraries, built on Hypothesis.

Old laptops in a colo as low cost servers

Transform your old laptop into a powerful server with our colocation services in Amsterdam and US datacenters for €7/month. We provide free shipping, setup assistance, and KVM access to your laptop in a secure, professional datacenter.

Reallocating $100/Month Claude Code Spend to Zed and OpenRouter

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You're switching from Claude to Zed editor and OpenRouter for more flexibility and to avoid hitting limits. You'll pay $10/month for Zed and top up $90/month to OpenRouter.

How Close Is Too Close? Applying Fluid Dynamics Research Methods to PC Cooling

LinusTechTips visited NASA's Langley Research Center to test the impact of a front panel on a PC fan's cooling potential, using techniques such as tufting, PIV, and aeroacoustic measurements. The results showed that a front panel gap of 15 mm is functional as an intake fan, but a 5 mm gap creates a reverse flow that recirculates hot air within the PC case.

Microsoft PhotoDNA scanning problem

https://www.elevenforum.com/data/attachments/168/168093-8d55318db1dc22257c9eba01750e1d32.jpg?hash=c97kgP6P8s
Microsoft's PhotoDNA technology keeps flagging user's face picture, immediately closing Microsoft accounts. User's face picture is being scanned across Microsoft's ecosystem, including Windows 11, causing repeated account closures.

Show HN: I built a Cargo-like build tool for C/C++

https://opengraph.githubassets.com/67f2ac525a3138f9a9d137660eed8ad73c6f2ecb5f8592a75d0f729c0e8890e3/randerson112/craft
Craft is a lightweight build tool for C and C++ projects that automates configuration and dependency management. It uses a simple craft.toml file to generate CMake configuration and provides a clean command-line interface.

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.

A WebGPU implementation of Augmented Vertex Block Descent

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This project is an experimental WebGPU physics prototype using AVBD solver for rigid-body and soft-body physics. It's an initial proof of concept with limited browser support and requires further updates for stability and ease of use.

Show HN: Druids – Build your own software factory

https://camo.githubusercontent.com/ee3a40c55cf493db5e4de976473868ca11c82d9004f624c380d23b972a650607/68747470733a2f2f696d672e796f75747562652e636f6d2f76692f45564a71572d74765379342f6d617872657364656661756c742e6a7067
Druids is a library that coordinates and deploys coding agents across machines, abstracting away infrastructure and communication. It allows users to define programs with agents, events, and controlled steps to automate tasks like code review and pentesting.

EFF is leaving X

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EFF is leaving X due to declining engagement and a shift in the platform's values under Elon Musk. They will focus on other platforms like Bluesky, Mastodon, and social media giants to protect digital rights.

Microsoft is employing dark patterns to goad users into paying for storage?

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I helped a non-tech literate customer resolve an issue with his laptop where he was running out of storage due to Microsoft's default Onedrive settings, which led to him deleting family photos to fix the problem. This incident highlights Microsoft's use of dark patterns to encourage users to pay for additional storage, and the need for companies to prioritize user experience and respect over ...

The Training Example Lie Bracket

The Lie bracket of two training examples in a neural network measures the order dependence of training on those examples, and it can be used to compute the difference in where parameters end up based on which order the training examples are shown. The magnitude of a given Lie bracket is mostly determined by factors independent of the parameter tensor, such as the training progress and the ...

LittleSnitch for Linux

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Little Snitch for Linux is a network monitoring tool that tracks and blocks unwanted connections. It uses eBPF to observe and intercept network activity, and can be configured through a web interface or plain text files.

Launch HN: Relvy (YC F24) – On-call runbooks, automated

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Marketing promos went live, potentially causing traffic spikes, and need to be monitored. Relvy AI is checking logs for issues like auth failures and host-specific errors.