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.

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.

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.

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.

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

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.

Will I ever own a zettaflop?

The user wants to harness massive computing power, specifically a zettaflop, to achieve incredible tasks in a short time. The main bottleneck is power, requiring 10 MW, which the user plans to generate from solar panels and energy storage.

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.

Microsoft PhotoDNA scanning problem

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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.

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.

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.

I still prefer MCP over skills

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TL;DR: The AI space is pushing hard for “Skills” as the new standard for giving LLMs capabilities, but I’m not a fan. Skills are great for pure knowledge and teaching an LLM how to use an existing tool. But for giving an LLM actual access to services, the Model Context Protocol (MCP) is the far superior, more pragmatic architectural choice. We should be building connectors, not just more ...

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

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Hegel is a universal property-based testing protocol and family of libraries, built on Hypothesis.

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.

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)

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.

Introduction to Nintendo DS Programming

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The homebrew community allows individuals to create and run their own games on the Nintendo DS without needing official development contracts or equipment, using devices like passthroughs and NoPass devices to bypass copy protection. To get started, one should choose a Slot-1 device, such as the R4DS, M3 Real, or Cyclo DS Evolution, which supports DLDI and can run homebrew software from a microSD card.

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

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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.

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.

Wit, unker, Git: The lost medieval pronouns of English intimacy

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The English language has lost many personal pronouns over the centuries, including the dual form "wit" which referred to two people, due to simplification and changes in social and political norms. Despite this, some Old English pronouns like "he", "it", and "we" have survived more than 1,000 years of history and upheaval, almost intact.

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 ...

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.

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 ...

Instant 1.0, a backend for AI-coded apps

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Instant is a full-stack app builder that allows developers to create unlimited apps with real-time, offline, and fast performance, using a multi-tenant database and sync engine. It provides a range of built-in services, including auth, file storage, presence, and streams, and is designed to be easy to use and maintain, with a focus on developer productivity and scalability.

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.