Fedware: Government apps that spy harder than the apps they ban

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The US government's mobile apps, including the White House app, request excessive permissions and embed trackers, violating users' privacy. These apps, part of a surveillance apparatus, collect sensitive data that feeds into ICE raids and warrantless location tracking.

We Hid a Free Trip to Switzerland in Our Privacy Policy. Someone Found It

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Cape hid an Easter egg in their privacy policy offering a free trip to Switzerland, and someone found it after reading the fine print. This highlights the importance of transparency in privacy policies, as most people don't read them and companies often hide data-sharing practices.

Do your own writing

LLMs can undermine authenticity and credibility by generating writing that lacks thought and understanding. Effective writing requires human thoughtfulness and effort to establish credibility and increase understanding.

How to turn anything into a router

https://nbailey.ca/images/router.jpg
User wants to create a homebrew router using a Linux-powered device, such as a mini-PC, to bypass a US policy banning new consumer router imports.

Turning a MacBook into a touchscreen with $1 of hardware (2018)

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A team created a touchscreen MacBook using a $1 mirror and computer vision, allowing for touch input without an external webcam. The system uses a webcam, mirror, and computer vision to translate finger movements into mouse events, making existing apps touch-enabled.

Bird brains (2023)

https://www.dhanishsemar.com/writing/bird-brains/opengraph-image?065a48ba6584b675
A flock of New Zealand kea parrots was found to be cleverly moving traffic cones to stop cars and get food from humans. Researchers have developed various tests to measure bird intelligence, including the mirror test, Aesop's Fable, and delayed gratification test.

Cherri – programming language that compiles to an Apple Shortuct

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Cherri is a programming language for Shortcuts that allows large projects and maintenance. It has a package manager, type checking, and a GUI IDE for macOS.

A sea of sparks: Seeing radioactivity

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Seeing individual atoms is impossible with light, but nuclear reactions like alpha particle emission from heavy elements like uranium can produce a visible flash. A scintillation screen coated with zinc sulfide can convert alpha particles' energy into light, allowing us to see thousands of momentary points of light around the source.

William Blake, Remote by the Sea

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William Blake moved to Felpham in 1800 with his wife Catherine, seeking a change from London. He was inspired by the sea and its transformative power, which influenced his art and poetry.

Vulnerability research is cooked

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AI coding agents will drastically alter exploit development, making it easier to find vulnerabilities in software. This shift will profoundly impact information security and the Internet, potentially rendering traditional countermeasures ineffective.

CodingFont: A game to help you pick a coding font

Browse Studio

OCR for construction documents does not work, we fixed it

https://anchorgrid-public.s3.us-east-1.amazonaws.com/doors_floor_plan-1.png
Anchorgrid.ai's door detection service processes PDFs in 2-4 minutes per job, scaling with page count and complexity. Upgrading to Pro or Enterprise plans uses dedicated GPU infrastructure for faster detection.

Seeing Like a Spreadsheet

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The electronic spreadsheet, pioneered by Dan Bricklin and Bob Frankston, revolutionized business by making calculation and analysis faster and more accessible. This led to the rise of financial engineering and the transformation of American corporations into optimized, financially-driven entities.

Build123d: A Python CAD programming library

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build123d is a Python-based CAD framework for 2D and 3D modeling, built on Open Cascade. It offers algebraic modeling and a clean, Pythonic interface for precise models.

Roulette Computers: Hidden Devices That Predict Spins

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Roulette computers are used in half of casinos to predict ball movements with high accuracy. They use variables like ball deceleration and rotor speed to make early predictions.

In math, rigor is vital, but are digitized proofs taking it too far?

https://www.quantamagazine.org/wp-content/uploads/2026/03/FormalMess-crKristinaArmitage-Lede-scaled.webp
Mathematicians have long sought to formalize their proofs to ensure rigor and accuracy. They've developed systems like Lean, a computer language that can automatically verify proofs, but its adoption comes with risks of homogenizing math and shifting focus away from the problem domain.

Take better notes, by hand

https://brianschrader.com/images/blog/galileo-note-bookstrack.jpg
The author uses a four-part note-taking system, with the most useful method being writing by hand in paper notebooks. They date every page and use an index to organize their notes, allowing them to easily find information later.

Show HN: Coasts – Containerized Hosts for Agents

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Coasts is a CLI tool for running isolated dev environments on a single machine with a local UI. It works with existing Docker setups and is offline-first with no vendor lock-in risk.

Mathematical methods and human thought in the age of AI

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
AI is a natural evolution of human tools, facilitating idea creation and dissemination. Its development should remain human-centered to enhance quality of life and expand human thought.

What Construction at a Train Station Taught Me About Software Engineering

https://engineering.leanix.net/img/blog/2026-03-24-engineering/construction.jpg
Today I found myself observing the construction site at Ljubljana's central train station. I've always taken their work for granted, but today I looked deeper. The station can't close, since it would severely affect tourism, transportation of people and goods, and much more. The work is carefully broken down, workarounds are implemented, and trains are logistically shuffled to ...

Recover Apple Keychain

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User relied on Touch ID and muscle memory, leading to password reset issues. Resetting password caused keychain data loss, but restoring old data was simple by replacing the new keychain file with the old one.

FTC action against Match and OkCupid for deceiving users, sharing personal data

https://www.ftc.gov/sites/default/files/styles/crop_thumbnail/public/ftc_gov/images/gaming-controller-hero.jpg?itok=9PjrGCSl
The FTC took action against OkCupid and Match Group for sharing users' personal info with an unrelated third party despite promises to protect it. OkCupid and Match are now prohibited from misrepresenting their privacy policies.

I am definitely missing the pre-AI writing era

The user's writing skills have deteriorated due to over-reliance on AI tools for grammar and vocabulary checks, causing them to lose their unique voice and creative expression. They are seeking advice on how to regain their writing skills and focus on their own voice, rather than relying on AI assistance.

The curious case of retro demo scene graphics

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The demo scene initially tolerated copying due to technical limitations, but as it evolved, artists began to value originality and craft over plagiarism. Today, many sceners reject AI-generated art and plagiarism, valuing the creative process and technical limitations that define the scene.
The author built an NSFW filter for a search engine using a single hidden layer neural network, trained on a dataset of labeled search results. The filter was implemented from scratch and performed well, with a 20-30% agreement with a classifier using open-source models.

I use Excalidraw to manage my diagrams for my blog

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User created an Excalidraw extension to generate SVGs for light and dark mode, but it caused frustration due to dependency on text changes. They then created a new extension that automatically exports frames as SVGs in both modes, allowing for local review and reference.

Proactively Parasocial

Posting on a blog can build parasocial relationships by giving readers an illusion of face-to-face connection with the writer. This can be a positive way to form connections with others, such as authors or inspiring heroes, but can also be negative if it replaces real social relationships.

New Washington state law bans noncompete agreements

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Washington state law signed by Rep Liz Berry outlaws noncompete agreements, effective June 30, 2027. Employers must notify workers about voided agreements by October 1, 2027.

Fibonacci's Composed Fractions

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Fibonacci's Liber Abaci introduced Hindu-Arabic numerals to Italy, explaining arithmetic and business problems using a positional number system. The book's composed fractions notation, used for mixed radix quantities, was influential but eventually replaced by decimal fractions.

The ladder is missing rungs – Engineering Progression When AI Ate the Middle

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AI tools are changing the landscape of software engineering, but the conversation is focused on code generation rather than the skills and judgment required to supervise AI. The structural problem is that AI handles tasks that used to train engineers, leaving a gap in the career ladder and raising questions about where the next generation of engineers will come from.