Filing the Corners Off MacBooks

https://kentwalters.com/posts/corners/imgs/IMG_0796.jpeg
User filed off sharp corners of their MacBook for comfort, using a file and sandpaper in increments. They're happy with the result and encourage others to modify their machines for a better user experience.

Chimpanzees in Uganda locked in eight-year 'civil war', say researchers

https://ichef.bbci.co.uk/news/480/cpsprodpb/2a41/live/068357f0-34fc-11f1-9d5c-8ba507d7dbde.png.webp
Chimpanzees at Uganda's Kibale National Park have been locked in a civil war for 8 years with 24 killings, including 17 infants. Researchers say the conflict may inform how early human conflict developed and highlights the danger of group divisions.

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.

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.

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.

JSON Formatter Chrome Plugin Now Closed and Injecting Adware

https://opengraph.githubassets.com/2a8a44c8ffa5865c90c2dd31d9d74944ca636cb533df2d8d65121056bf1d32eb/callumlocke/json-formatter
JSON Formatter is now closed-source and commercial, but the final open source version, JSON Formatter Classic, remains available for use. It provides a simple, local-only JSON-formatting extension with no updates.

Nowhere Is Safe

https://i0.wp.com/steveblank.com/wp-content/uploads/2026/04/Ukraine-anti-drone-netting.jpg?resize=468%2C255&ssl=1
The US is facing a new threat from low-cost drones that can overwhelm air defense systems. To counter this, the US needs to rethink its approach to force protection and infrastructure protection.

Watgo – A WebAssembly Toolkit for Go

https://eli.thegreenplace.net/images/2026/watgo-diagram.png
watgo is a WebAssembly Toolkit for Go that parses WAT, validates, and encodes WASM binaries. It uses wasmir for semantic representation and has a CLI and Go API.

Show HN: FluidCAD – Parametric CAD with JavaScript

https://fluidcad.io/img/logo.png
The feature allows non-destructive editing and modeling with various operations such as extrusion and mirroring. It supports CAD tools and imports/export designs with color support.

Installing Every* Firefox Extension

https://jack.cab/_astro/launch.fuIAiunJ_ZtRu8u.png
The user scraped all Firefox extensions using a public API, finding 84,194 extensions, and discovered various issues including phishing extensions, malicious code, and performance problems when installing all extensions at once. The user documented their process and findings, including the use of a script to download and install all extensions, and the performance issues that arose when ...

What is RISC-V and why it matters to Canonical

https://ubuntu.com/wp-content/uploads/c26a/Isometric-One-logo.png
RISC-V is an open standard ISA with growing interest and adoption, offering flexibility and innovation in hardware and business models. Canonical supports RISC-V with Ubuntu, providing LTS versions and specific support for silicon partners.

Helium Is Hard to Replace

https://substackcdn.com/image/fetch/$s_!sAvO!,w_1200,h_675,c_fill,f_jpg,q_auto:good,fl_progressive:steep,g_auto/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5ae2519f-6142-44ce-aa4d-0b9b276c12ff_1220x634.png
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.

CPU-Z and HWMonitor compromised

https://regmedia.co.uk/2021/04/13/malware.jpg
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.

Sam Altman's response to Molotov cocktail incident

https://phaven-prod.s3.amazonaws.com/files/image_part/asset/3439526/q4Xtf4iMYA_SCrMc8hMfnF_k3UE/medium_WhatsApp_Image_2026-02-28_at_15.26.14__4_.jpeg
Images have power, I hope. Normally we try to be pretty private, but in this case I am sharing a photo in the hopes that it might dissuade the next person from throwing a Molotov cocktail at our house, no matter what they think about me. The first person did it last night, at 3:45 am in the morning. Thankfully it bounced off the house and no one got hurt. Words have power too. There was an ...

Launch HN: Twill.ai (YC S25) – Delegate to cloud agents, get back PRs

https://twill.ai/landing_assets/code-file.avif
Twill automates coding tasks, allowing developers to focus on high-priority work. It streamlines workflows, enabling teams to ship more and context-switch less.

Vinyl Cache and Varnish Cache

The Varnish Cache FOSS project has changed its name to Vinyl Cache, with a new project identity and governance model, while Varnish Software has created a new downstream project called Varnish Cache. The Vinyl Cache FOSS project is considered the continuation of the former Varnish Cache project, whereas the new Varnish Cache by Varnish Software is a separate project with different governance and code.

Bluesky April 2026 Outage Post-Mortem

https://pckt-blog-media.s3.us-east-2.amazonaws.com/images/8ae24c29-6eca-43a7-a128-4d1a87e0d42f/image.png
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 ...

A security scanner as fast as a linter – written in Rust

https://raw.githubusercontent.com/PwnKit-Labs/foxguard/main/assets/demo.gif
Foxguard is a fast local security scanner for real codebases, scanning in 0.03 seconds instead of 10 seconds. It supports 10 languages and 100+ built-in rules, with incremental migration from Semgrep/OpenGrep YAML.

Bild AI (YC W25) Is Hiring a Founding Product Engineer

https://bookface-images.s3.amazonaws.com/small_logos/8e9f3a32db39a8212bb016c786d67f53ed0bf27c.png
Bild AI is a construction tech startup that uses AI and CV to make blueprint reading, cost estimation, and permit applications more efficient. The company is looking for a full-stack engineer to own features, work with customers, and build a user-friendly product.

Show HN: A WYSIWYG word processor in Python

https://codeberg.org/chrisecker/miniword/raw/branch/main/screenshots/miniword_10apr26.png
This project is licensed under the GNU General Public License v3.0 – see LICENSE for details. Contact me if you need something else.

You can't trust macOS Privacy and Security settings

https://eclecticlight.co/wp-content/uploads/2026/04/insenticon.jpg?w=1024
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.

Show HN: Eve – Managed OpenClaw for work

https://eve.new/images/sunset-placeholder.jpeg
Eve is an orchestration layer to delegate any work task to an AI agent

Clojure on Fennel Part One: Persistent Data Structures

https://andreyor.st/me.jpg
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.

AI assistance when contributing to the Linux kernel

https://opengraph.githubassets.com/0fed47c9ef095c1ae9caf4cab9b51df2c9ef4fdd0dd30fff84c66d85130516b9/torvalds/linux
AI tools cannot add Signed-off-by tags, only humans can certify the DCO. Contributions from AI tools should include an Assisted-by tag for proper attribution.

Simulating a 2D Quadcopter from Scratch

https://mrandri19.github.io/assets/images/2d-quadcopter-simulation/free-body-diagram.svg
A 2D quadcopter simulation is built to understand its dynamics before designing a controller. The simulation starts with a free-body diagram and derives the equations of motion using Newton-Euler rigid-body equations.

Molotov cocktail is hurled at home of Sam Altman

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Combining spicy foods with mint boosts anti-inflammatory effects 100x or more

https://scitechdaily.com/images/Cayenne-Pepper-Powder-777x518.jpg
Researchers found that combining plant compounds like mint, eucalyptus, and chili peppers can suppress inflammation more effectively than using each one alone. This study provides evidence for the benefits of plant-rich diets and suggests new possibilities for developing functional foods and supplements to regulate chronic inflammation.

The best seat in town

https://storage.ghost.io/c/a1/84/a184b452-9b25-4b15-8c4f-4a1ffc8adb6b/content/images/2026/04/IMG_1862.jpeg
Paris's self-cleaning public toilets are efficient and convenient, used 200 times a day, and now found in 28 countries worldwide. LA's public bathroom program has only built 14 free-standing toilets, which are currently closed, highlighting the city's need for better infrastructure.

The difficulty of making sure your website is broken

https://letsencrypt.org/images/language-icon128px-black.png
The author created a Go program to manage test certificates for a Certificate Authority, specifically to host websites with revoked or expired certificates, which is a tricky task. The program uses Lego to request certificates, checks for revocation, and waits for the correct certificate state before serving it to the webserver.

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.