Project Glasswing: Securing critical software for the AI era

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Anthropic's Claude Mythos Preview model has identified thousands of zero-day vulnerabilities in major operating systems and software, many of which were previously unknown to developers. The model's capabilities are being shared with industry partners to help fix these vulnerabilities and improve cybersecurity.

Lunar Flyby

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The first flyby images of the Moon captured by NASA’s Artemis II astronauts during their historic test flight reveal regions no human has ever seen before—including a rare in-space solar eclipse. Released Tuesday, April 7, 2026, the photos were taken on April 6 during the crew’s seven‑hour pass over the lunar far side, marking humanity’s return to the Moon’s vicinity.

Protect your shed

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The author's career as an engineer was split between building banking systems at enterprise scale and personal projects in their backyard shed. The enterprise work taught them to engineer at scale, but the personal projects kept them an engineer and allowed them to maintain their curiosity and creativity.

Slightly safer vibecoding by adopting old hacker habits

The user's development setup involves SSHing into a server with key-forwarding and using coding agents to reduce supply-chain attack risks. By forking a development repository and using a main repository, the user minimizes risks and only loses Claude credentials in a supply chain attack.

Native Americans had dice 12k years ago

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A lawyer-turned-archaeologist found evidence of Native Americans using dice and games of probability 12,000 years ago in the US Southwest. This discovery is thousands of years earlier than previously thought and suggests Native Americans were the first humans to contemplate complex intellectual concepts.

System Card: Claude Mythos Preview [pdf]

Claude Mythos Preview is a large language model from Anthropic with powerful capabilities in areas like software engineering and cybersecurity. It has demonstrated a striking leap in cyber capabilities but is not being released for general availability due to potential risks.

GLM-5.1: Towards Long-Horizon Tasks

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GLM-5.1 is a next-generation model with stronger coding capabilities, achieving state-of-the-art performance on various benchmarks. It sustains optimization over long horizons, handling complex problems with better judgment and staying productive over longer sessions.

How to get better at guitar

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A guitar teacher Justin Sandercoe's technique involves transcribing songs by ear, writing down notes on tab paper as you hear them. This process helps you learn songs, develop muscle memory, and improve your ability to hear and play notes on the guitar neck.

Binary obfuscation used in AAA Games

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You discussed a high-stakes friction point in game security: the conflict between Binary Obfuscation and Link-Time Optimization (LTO), and proposed a solution called "Apartment-Level Randomization" that respects the hardware and uses tools like LIEF, Capstone, and Valgrind. You also explored using Dynamic Binary Instrumentation (DBI) with Intel Pin as a dedicated Security Tool to detect ...

S3 Files

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Amazon S3 Files integrates EFS into S3, allowing data to be accessed as a network-attached file system. This feature addresses data friction by providing a unified interface for file and object storage, making data more accessible and valuable.

Cambodia unveils statue to honour famous landmine-sniffing rat

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A statue of Magawa, a hero rat who sniffed out over 100 landmines in Cambodia, was unveiled in Siem Reap on April 4. Magawa was awarded a gold medal for his life-saving work and cleared 141,000 square meters of land during his five-year career.

Show HN: An interactive map of Tolkien's Middle-earth

An interactive map of Tolkien’s Middle-earth, with events from across the legendarium plotted as markers. The base map image is sourced from the internet and is used here for fan/educational purposes. We do not claim copyright over the map artwork. Map artwork is not owned by this project and is used for fan/educational purposes only.

A truck driver spent 20 years making a scale model of every building in NYC

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Joe Macken spent 20 years building a 1,350-square-foot model of New York City using balsa wood and other materials. His model, featuring nearly a million structures, is now on display at the Museum of the City of New York through 2026.

A database of analog cameras that can be 3D printed

None of the cameras match the seleted criteria. Adjust the search term or filters to find any results.

Show HN: Brutalist Concrete Laptop Stand (2024)

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User made a heavy laptop stand with a raw concrete surface, 2 USB ports, and a plant pot, inspired by brutalist architecture. It features exposed rebar, rusted metal, and moss for a weathered look, with a deliberate hole and damaged power cable for added urban decay effect.

US and Iran agree to provisional ceasefire

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US and Iran agreed to a two-week ceasefire after a last-minute diplomatic intervention led by Pakistan, canceling a US ultimatum to surrender or face destruction. The agreement allows for safe passage through the Strait of Hormuz in exchange for a two-week suspension of US bombing and attack on Iran.

The Clock

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The user designed a timekeeping device that uses physical facts like Earth's rotation and orbit around the Sun to display time, day/night cycle, and time zones, aiming to be culturally neutral. The device consists of multiple concentric circles representing Earth's rotation, orbit, and time scales, with ticks marking specific locations and events, making it understandable to aliens but still ...

Cloudflare targets 2029 for full post-quantum security

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Cloudflare is accelerating its post-quantum roadmap to achieve full security by 2029, including authentication. This is due to recent breakthroughs in quantum computing that have pulled forward the timeline for Q-Day.

Show HN: Gemma 4 Multimodal Fine-Tuner for Apple Silicon

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Gemma is a toolkit for fine-tuning on text, images, and audio on Apple Silicon Macs without renting an H100 or copying data locally. It supports domain-specific ASR, vision, and document understanding, and can be used for private, on-device pipelines.

Xilem – An experimental Rust native UI framework

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Masonry is a Rust crate for building native GUIs, while Xilem is a high-level reactive framework inspired by React and SwiftUI. Xilem is recommended for new users due to its ease of use and minimal hassle.

A whole boss fight in 256 bytes

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Endbot is a 256-byte DOS demo that renders a robot sprite, explosion, and scrolling landscape in real-time with a MIDI soundtrack. It uses FASM and DosBox-X for proper MPU-401 emulation, with a single .com file containing the code and sprite data.

JSIR: A High-Level IR for JavaScript

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JSIR is a high-level IR for JavaScript that preserves all information from the AST and supports high-fidelity round-trip between source ↔ AST ↔ JSIR. It fills a gap in the JavaScript community for a public, open-source IR-based tool.

Rescuing old printers with an in-browser Linux VM bridged to WebUSB over USB/IP

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The user acquired a Canon SELPHY photo printer from a friend and set up a Manjaro machine to print from it. They then created a web app called printerface.app to make the printer accessible to Mac users.

LLM scraper bots are overloading acme.com's HTTPS server

Acme.com experienced intermittent network outages due to high ping times and packet drops after Sonic's network change. Closing port 443 revealed the issue was likely caused by the slow https server being overwhelmed by LLM scraper bots.

The Image Boards of Hayao Miyazaki

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Hayao Miyazaki's image boards, loose sketches of ideas, have been a consistent part of his creative process since the 1960s. These boards, often drawn quickly with pencil and watercolor, have evolved over time and influenced his films, including The Boy and the Heron.

ACE on a USB-HDMI Adapter

Check your DNS Settings. A 523 error means that Cloudflare could not reach your host web server. The most common cause is that your DNS settings are incorrect. Please contact your hosting provider to confirm your origin IP and then make sure the correct IP is listed for your A record in your Cloudflare DNS Settings page. Additional troubleshooting information here.

Running out of disk space in production

A server hosted on a small Hetzner machine running NixOS experienced a sudden surge in traffic, causing disk space issues due to a large influx of users downloading a 2.2GB file. The issues were resolved by clearing unnecessary files, moving the nix store to a separate volume, and disabling nginx buffering, resulting in a stable server with manageable disk usage.

Google open-sources experimental agent orchestration testbed Scion

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Scion is an experimental orchestration testbed for managing concurrent agents in containers across local and remote compute. It enables developers to run isolated, concurrent processes with shared workspaces and distinct agent lifecycles.

A blind man made it possible for others with low vision to build Lego sets

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Matthew Shifrin, a blind Massachusetts man, created Bricks for the Blind to provide accessible Lego instructions in braille for the visually impaired. His nonprofit has created instructions for over 540 Lego sets and inspired the Lego Group to introduce audio and braille instructions for their sets.

Bitcoin and quantum computing

Bitcoin's signatures are vulnerable to a potential quantum computer, requiring upgrades to its code and wallets to remain secure. The uncertainty lies in the timeline and how to address this, with a non-trivial chance of Bitcoin being broken if a CRQC appears before it's upgraded.