Microsoft and OpenAI end their exclusive and revenue-sharing deal

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“Why not just use Lean?”

The author discusses the formalisation of mathematics and the rise of Lean, but notes that it's not the first system to achieve this. They mention AUTOMATH, which was developed in the 1960s and 1970s, and other systems like HOL Light and Isabelle/HOL. The author argues that Lean's success is partly due to its user community and the abandonment of "constructive proofs".

Networking changes coming in macOS 27

https://eclecticlight.co/wp-content/uploads/2015/01/cropped-eclecticlightlogo-e1421784280911.png?w=200
Apple is warning of two significant changes in macOS 27: removal of AFP support and a requirement for TLS 1.2 connections to certain servers. These changes may impact enterprise users and those with Time Capsules or NAS systems that don't support SMB3.

Open-Source KiCad PCBs for Common Arduino, ESP32, RP2040 Boards

https://raw.githubusercontent.com/Hanqaqa/Easyduino/master/Assets/Isometric%20Photos/Collage_easyduino.jpg
The Easyduino project is an open-source effort to create PCB designs for popular microcontrollers using KiCad. It aims to unify software and conventions across devboards like Arduino, ESP32, and Raspberry Pi.

The woes of sanitizing SVGs

https://muffin.ink/blog/scratch-svg-sanitization/blue.png
Scratch's approach to SVG sanitization has been ineffective due to numerous vulnerabilities discovered over the years. Despite multiple fixes, new security issues continue to arise.

GitHub Copilot is moving to usage-based billing

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GitHub Copilot will transition to usage-based billing on June 1, 2026, with a monthly allotment of GitHub AI Credits for each plan. Credits will be consumed based on token usage, and users can purchase additional usage if needed.

4TB of voice samples just stolen from 40k AI contractors at Mercor

https://app.oravys.com/static/images/og-image.png
A data breach at Mercor exposed 40,000 contractors' voice biometrics and ID documents. Attackers can use this data to clone voices and commit crimes like bank verification bypass and vishing.

Show HN: OSS Agent I built topped the TerminalBench on Gemini-3-flash-preview

https://camo.githubusercontent.com/7c2146782e5ad29e647e51a95f9290c4e5eba1214d0a736d571de7f55cf7a98b/68747470733a2f2f7777772e64697261632e72756e2f7374617469632f696d616765732f6d756c7469706c655f656469742e706e67
Dirac is an open-source coding agent that improves accuracy and reduces costs by 64.8% with tightly curated context. It achieves 100% accuracy on complex refactoring tasks at a fraction of the cost of other leading agents.

Pgbackrest is no longer being maintained

https://opengraph.githubassets.com/17f9bcbeb7b3b629e014736d09fc3b13c7f8321d08c7a503ab49af94d156e793/pgbackrest/pgbackrest
pgBackRest is a reliable PostgreSQL backup and restore solution that scales up to large databases and workloads. It supports parallel processing, compression, and block-level backups for efficient data storage and retrieval.

Dutch central bank ditches AWS and chooses Lidl for European Cloud

https://www.techzine.eu/wp-content/uploads/2025/01/lidl-winkel-768x512.jpg
De Nederlandsche Bank signs major contract with Schwarz Digits to reduce dependence on American cloud companies. The move aims to use a European partner, but raises questions about the robustness of European cloud alternatives.

Canada's first sovereign wealth fund

https://i.cbc.ca/ais/591e3ab2-5f73-4077-9782-ed151b58b356,1777289163820/full/max/0/default.jpg?im=Crop%2Crect%3D%280%2C308%2C5287%2C2973%29%3B
Canada's Prime Minister Mark Carney has announced a plan to create a sovereign wealth fund called the "Canada Strong Fund" with an initial endowment of $25 billion. The fund will finance major projects of national interest and allow Canadians to contribute and benefit from it, investing alongside the private sector and international partners.
https://raw.githubusercontent.com/WeebLabs/DSPi/main/Images/toslink.jpg
The DSPi transforms a Raspberry Pi Pico into a digital audio processor with features like room correction, active crossovers, and parametric EQ. It acts as a USB sound card with onboard DSP engine.

FDA approves first gene therapy for treatment of genetic hearing loss

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Decoupled DiLoCo: Resilient, Distributed AI Training at Scale

https://deepmind.google/static/images/fallback/video_poster_fallback_light.57b61d57842a.jpg
Decoupled DiLoCo is a new AI training architecture that allows for flexible and resilient training across globally distributed data centers. It achieves this by dividing training runs into decoupled "islands" of compute with asynchronous data flow, reducing communication delays and hardware failures.

Men who stare at walls

https://www.alexselimov.com/posts/men_who_stare_at_walls/cover.webp
User tried Simple Lucas' focus routine, staring at a wall to recover focus, and found it effective but hard. They attribute their lack of focus to information overload and use wall staring with parasympathetic activation and mind blanking to improve productivity.

Boats crash/break and can kill their passengers when falling certain distances

Boats crash and break when falling certain distances, dropping items. This bug occurs when falling 12, 13, 49, 51, 111, 114, 198, 202, 310 or 315 blocks.

Tendril – a self-extending agent that builds and registers its own tools

https://opengraph.githubassets.com/fa66585c962c1d83b5c3ffef3ca74f3ce594d9d0f1c4c22fea0ddcec772e8397/serverless-dna/tendril
Tendril is a self-extending agentic sandbox that discovers and builds tools autonomously. It uses a Strands agent with three bootstrap tools to rule them all.

Adding a team was the wrong strategic decision

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The Engineering Manager created a new CX team to improve customer experience, but it didn't align with the existing tribe's challenges and structure. The team's dashboard wasn't used by CX, but instead by the product manager.

Show HN: Utilyze – an open source GPU monitoring tool more accurate than nvtop

https://framerusercontent.com/images/H4Oud0RNKPwPQmK3x0Gcc7yYcQ.png?width=4800&height=1918
The world is facing an AI compute crisis due to rising electricity demand, long lead times for GPUs, and increasing rental contract pricing, making optimization a top priority for enterprises. A new tool called Utilyze measures true GPU utilization by tracking actual compute throughput and memory bandwidth, providing accurate and real-time insights to help identify performance bottlenecks and ...

Flipdiscs

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The user built a large interactive wall art using flipdiscs, a display type that utilizes electromagnetic pulses to flip small discs between two colors, and paired it with an Nvidia Orin Nano for processing power. The user created a library for using flipdisc screens in Node.js and built a reliable interface for the display using an expo app, allowing users to control and customize the display.

I bought Friendster for $30k – Here's what I'm doing with it

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The domain name friendster.com was bought for $7456 in an auction and later sold for $20k in Bitcoin. The new owner created a social network with unique features like phone tapping to connect friends and fading connections to encourage in-person interactions.

US Supreme Court reviews police use of cell location data

A geofence warrant was used to catch a suspect in a 2019 bank robbery, but critics say it violates the Constitution and puts personal data at risk. The Supreme Court will examine the use of geofence warrants in a case involving a Jamaican immigrant's conviction.

Quarkdown – Markdown with Superpowers

https://quarkdown.com/_astro/no-boilerplate.SaDlAnd3_Z16VNJW.webp
No boilerplate Versatile Whether you are writing a research paper, a quick report, a company-wide wiki, class notes, or preparing interactive slides for your next talk, there's only one line you need.

Den stora Älgvandringen – The great moose migration (live)

https://www.svtstatic.se/image/custom/1144/54091618/1777080936?format=auto&chromaSubSampling=false&enableAvif=true&quality=85
lgarna vandrar samma leder i tusen år för att nå rika betesmarker. Följ årets åttonde säsong av älgvandringen på SVT Play.

Managing the Unmanaged Switch

https://watchmysys.com/blog/wp-content/uploads/2026/03/TL-SG108.jpg
The TL-SG108 is an 8 port Gigabit Ethernet switch based on the Realtek RTL8370N chip, which can be upgraded to a managed switch by replacing the 4Mbit SPI flash with a 32Mbit one. The switch's MAC address and serial number can be modified to avoid conflicts.

Supreme Court to Hear Arguments in Landmark Roundup Weedkiller Case

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AI should elevate your thinking, not replace it

https://www.koshyjohn.com/blog/ai-should-elevate-your-thinking-not-replace-it/blog_social.jpg
The future of software engineering will belong to those who use AI to augment their skills, not replace them, by focusing on judgment, clarity, and original thought. Effective engineers will know what to delegate to AI and what to own, turning time savings into better thinking and avoiding the trap of shallow understanding and imitation.

Show HN: A terminal spreadsheet editor with Vim keybindings

https://raw.githubusercontent.com/garritfra/cell/main/assets/cell.png
The library opens various file formats including CSV, TSV, and native .cell files. It tracks ODF formula compliance and saves CSV files with flattened formula values.

Getting my daily news from a dot matrix printer 2024

https://aschmelyun.com/storage/images/andrew-schmelyun-profile.jpg
The user built a custom "front page" printer using a dot matrix printer, Raspberry Pi, and PHP script to print out news, stocks, and Reddit posts every morning. The project was a fun way to integrate old hardware with new technology and reduce screen time, and the user plans to explore more uses for the dot matrix printer.

Understanding the short circuit in solid-state batteries

https://www.mpie.de/5151354/original-1776926724.jpg?t=ZXlKM2FXUjBhQ0k2T1RZMkxDSnZZbXBmYVdRaU9qVXhOVEV6TlRSOS0tOGI0NTNmOTFlZWJjNGZlYjQyOGEzZWU1ZDk3ZTdlOTAzMzBhZGYxYw
Researchers at the Max Planck Institute found that lithium-metal electrodes generate hydrostatic stress causing the solid electrolyte to fracture during charging. This discovery could help prevent short circuits in solid-state batteries and pave the way for their commercial use.