Leak confirms OpenAI is preparing ads on ChatGPT for public roll out

https://www.bleepstatic.com/content/hl-images/2023/03/24/ChatGPT-logo.jpg
ChatGPT may introduce ads in its Android app, initially limited to search experience, with highly personalized content. This could impact user experience, especially if ads are not disabled.

System 7 natively boots on the Mac mini G4

http://revontulet.org/2025/11/27/ea941d2fe9ea40eda5ef21b98235a199.jpg
A user has successfully booted and run various Mac OS versions on a Mac mini G4, including System 7.5, 7.5.3, 7.6, 8.1, and 9.2.2, thanks to patches and ROM files created by Rairii and ELN.

Hachi: An Image Search Engine

https://eagledot.xyz/assets/face_rec_1.png
For quite some time now, i have been working on and off on a fully self-hosted search engine, in hope to make it easier to search across Personal data in an end to end manner. Even as individuals, we are hoarding and generating more and more data with no end in sight. Such "personal" data is being stored from local hard-disks to corporate controlled cloud-centers which makes it ...

WinApps: Run Windows apps as if they were a part of the native Linux OS

https://raw.githubusercontent.com/winapps-org/winapps/main/docs/readme/demo.png
WinApps allows running Windows applications on GNU/Linux with KDE Plasma, GNOME, or XFCE, seamlessly integrating with the host system. It supports all Windows applications, except kernel-level anti-cheat systems, and offers a community-driven list of tested applications.

WebR – R in the Browser

https://webr.sh/assets/banner.png
Interactive R environment running in your browser. Execute R code, create plots, and analyze data without installing anything.

Airbus A320 – intense solar radiation may corrupt data critical for flight

https://www.airbus.com/sites/g/files/jlcbta136/files/styles/w160h200/public/2024-04/professionals_4images.jpg?h=0e6c0790&itok=z-5ZZ6lA
Airbus has identified A320 Family aircraft that may be impacted by intense solar radiation corrupting flight control data. Airbus is working with aviation authorities to issue a precautionary software and/or hardware update to ensure fleet safety.

Show HN: Explore what the browser exposes about you

The summary describes various device and browser properties that can be detected, including mobile status, touch support, and Do Not Track settings. These properties are determined through user agent checks, event existence, and other methods to provide insights into device capabilities and user preferences.

Show HN: I built Magiclip – an all-in-one AI studio

https://magiclip.io/assets/images/iavideo.png
Create professional videos from text in seconds. The most advanced AI video generation technology available. How it works Transform any YouTube video into a viral TikTok in minutes. Our simple process prepares you to publish in just three easy steps! Create stunning videos with Veo 3 AI model - the most advanced video generation technology. Find quick answers to your questions about Magiclip, ...

DMT-induced shifts in criticality correlate with self-dissolution

https://www.jneurosci.org/sites/default/files/mobile-logo.png
DMT shifts brain oscillations away from criticality, increasing entropy and reducing complexity. This shift correlates with intensity of self-dissolution in psychedelic experience.

High air pollution could diminish exercise benefits by half – study

https://scienceclock.com/wp-content/uploads/2025/11/5530768-1024x682.jpg
A new study suggests exercise may not provide the same benefits in polluted areas, with protective effects dropping to 12-15% in areas with high PM2.5 levels. Cleaner air and regular exercise are both crucial for healthy ageing, and tackling pollution can significantly enhance health gains.

Running a Business Means Contact with Reality

A year ago I decided to help build a service business for my mom because I wanted to learn about marketing and business. One of the largest blindspots engineers have is around sales and marketing. I was determined to not fall into this trap, but marketing seemed like a skill I couldn’t just learn by reading — a form of tacit knowledge. I needed some kind of sandbox to test out the marketing ...

Every mathematician has only a few tricks (2020)

https://mathoverflow.net/Content/Sites/mathoverflow/Img/apple-touch-icon@2.png?v=f1c9606b77ff
Mathematicians often rely on a few key tricks or techniques that they have mastered and can apply in various situations, such as interchanging the order of summation, applying the Cauchy-Schwarz inequality, or using generating functions. These tricks can be used to solve a wide range of problems and can be combined in various ways to tackle more complex challenges.

Imgur geo-blocked the UK, so I geo-unblocked my network

https://blog.tymscar.com/imgur-uk/not-working.png
User's internet provider blocked Imgur in the UK, causing issues with accessing old links. They created a solution using a VPN-connected container and Nginx to automatically route Imgur traffic through a non-UK exit point.

How ICE is becoming a secret police force

https://images.theconversation.com/files/664275/original/file-20250428-56-so8lzp.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=754&fit=clip
ICE is becoming a secret police force due to its covert operations, loyalty to Trump, and increasing surveillance capabilities. It meets most criteria, including not being controlled by other agencies and using preemptive repression, but has yet to target political opponents directly.

Garfield's Proof of the Pythagorean Theorem

https://upload.wikimedia.org/wikipedia/commons/thumb/1/1f/James_Abram_Garfield%2C_photo_portrait_seated.jpg/250px-James_Abram_Garfield%2C_photo_portrait_seated.jpg
James A Garfield, the 20th US president, discovered an original proof of the Pythagorean theorem in 1876. His nontrivial proof involves congruent triangles and the area of a trapezoid.

Confessions of a Software Developer: No More Self-Censorship

https://kerrick.blog/wp-content/uploads/2025/11/IMG_0378.jpeg
The author was afraid to publish due to fear of being judged, but now feels free to write about their knowledge gaps and personal struggles. They want to help others learn and fill in their own gaps.

How stealth addresses work in Monero

https://www.johndcook.com/alice_monero.jpg
Alice runs a confidential restaurant accepting Monero payments through QR codes for her public view key A and spend key S. Bob pays Alice using elliptic curve cryptography and ring signatures to maintain anonymity.

So you wanna build a local RAG?

https://blog.yakkomajuri.com/images/voyage-claude.png
Skald aims to provide a self-hostable, data-privacy-focused RAG setup using open-source tech, allowing users to substitute third-party services with local options. The setup uses Postgres, Sentence Transformers, and Docling, and benchmarks show good performance for point queries in English, but struggles with aggregating context from multiple documents.

Belgian Police exposed using botnets to manipulate EU data law impact assessment

Register or sign in with developer credentials and ensure a unique User-Agent string to access the application. If blocked, try default User-Agent or file a ticket for assistance.

Molly: An Improved Signal App

https://molly.im/assets/images/og_main.webp
Molly is an improved Signal app for Android

Anthony Bourdain's Lost Li.st's

https://github-production-user-asset-6210df.s3.amazonaws.com/1017304/519033609-62aaebdd-6531-4e1f-9b37-c69b9d5cc521.png?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAVCODYLSA53PQK4ZA%2F20251129%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20251129T092943Z&X-Amz-Expires=300&X-Amz-Signature=13541626bdc0180b872b6c1222016319aa38e3eaaf77ec599d92387f790aed5b&X-Amz-SignedHeaders=host
Anthony Bourdain shares his opinions on various topics including food, movies, and travel destinations.

The risk of round numbers and sharp thresholds in clinical practice

https://media.springernature.com/w215h120/springer-static/image/art%3A10.1038%2Fs41551-025-01520-7/MediaObjects/41551_2025_1520_Fig1_HTML.png
Researchers found that round-number thresholds in clinical decision-making can distort risk assessments and lead to suboptimal patient outcomes. An interpretable machine learning model identified statistical artifacts caused by threshold-based practices and suggested periodic reassessment of clinical guidelines to improve patient outcomes.

A triangle whose interior angles sum to zero

https://www.johndcook.com/tricusp.png
Spherical and hyperbolic triangles have unique properties, with area determined by angle excess or defect. In both geometries, small triangles have interior angles near π.

Airloom – 3D Flight Tracker

https://objectiveunclear.com/images/airloom.png
Real-time 3D visualization of aircraft flight paths. Watch live flights with stunning ribbon trails across the sky.

Language is primarily a tool for communication rather than thought (2024) [pdf]

Language is a tool for communication, not a prerequisite for complex thought, and its emergence has transformed human culture. The language network in the human brain is abstract and sensitive to linguistic meaning, but not necessary for various forms of thought.

The original ABC language, Python's predecessor (1991)

https://opengraph.githubassets.com/cf3e7660fb2678e58fadb424fc471644127583401f73a7f9780d427f36b45672/gvanrossum/abc-unix
The ABC programming language sources exist in two versions, one in a tar ball and another in Luciano Ramalho's GitHub. The language is intended to work on 32-bit systems but may be upgraded for 64-bit systems.

28M Hacker News comments as vector embedding search dataset

https://clickhouse.com/docs/img/docs_social_share.png
The Hacker News dataset contains 28.74 million postings with 384-dimensional vector embeddings for real-world vector search application design and performance analysis. It can be used with ClickHouse and Sentence Transformers for vector similarity search and Generative AI applications.

Show HN: Choose your own adventure style Presentation

https://raw.githubusercontent.com/Skarlso/adventure-voter/main/imgs/adventuring_gopher.png
The system allows live polling for tech talks and workshops by voting on what happens next in a presentation written in markdown files with decision points. It uses WebSockets for real-time communication and is currently in heavy alpha with a Go backend and Alpine.js frontend.

True P2P Email on Top of Yggdrasil Network

https://opengraph.githubassets.com/8ec671dc53aa8e78858bb40e4257f01e5968ac2cfe27e3ef3253c116b58dfad2/JB-SelfCompany/Tyr
Tyr is a P2P email app that runs on Android devices, using the Yggdrasil network for transport and strong encryption. It provides email freedom by running a complete email server on the device, allowing users to send and receive encrypted emails.

Show HN: Mu – The Micro Network

https://opengraph.githubassets.com/56c36bd28f59fab25f42a42be97dfc7f3a85ff131c842701d1c251b9043ac017/asim/mu
Mu is a membership-based network that offers ad-free, algorithm-free services in exchange for a monthly subscription fee, promoting sustainability and direct voice to the team. This model shifts focus from selling features to supporting the tools and community.