Teenage Engineering: Introducing APC-2

https://assets.teenage.engineering/_img/6a22f2d3ab13747827da71c7_1024.webp
The APC-2 is a professional record cutter with superior sound quality, available exclusively through SUPERSENSE. It features advanced technology for precision cutting and control.

DeepSeek V4 Pro beats GPT-5.5 Pro on precision

https://runtimewire.com/og/deepseek-v4-pro-beats-gpt-5-5-pro-on-precision.jpg
DeepSeek V4 Pro wins this head-to-head by being more exact where it matters: following instructions, matching schemas, and solving edge cases cleanly. GPT-5.5 Pro is still strong, but it gave away points with avoidable deviations.

The Smallest Brain You Can Build: A Perceptron in Python

A perceptron is a simple neural network that takes one input, weighs it with a weight, adds a bias, and decides with a yes-or-no answer, and it learns from its mistakes by adjusting the weight and bias. The perceptron's ability to learn and make decisions relies on the weight, bias, learning rate, and normalization of the input data, which can be adjusted to improve its accuracy and performance.

New drug 'functionally cures' many hepatitis B virus infections

Researchers found that adding an experimental drug, bepirovirsen, to standard antivirals cured 19% of people with hepatitis B virus in two trials. The results are promising but may not be effective for the majority of the 240 million people worldwide living with chronic HBV infections.

Building from zero after addiction, prison, and a felony

https://gavinray97.github.io/static/images/building-from-zero.svg
The user spent 14-16 years in juvenile prison and later became a convicted felon due to addiction, but rebuilt their life through software and open-source contributions. They now work at Hasura, a developer-facing tool, and hope to give others a chance despite their troubled past.

90210 – running the show without property tax

https://opengraph.githubassets.com/624c39df7fd91575059ea6ea6910766d925a05012e6adcaa869456aa19b9d6fc/Achint08/90210
The app turns screenplays into short films with synchronized video, audio, and subtitles using Google Veo and other technologies. It uses a Quality Oracle and Story Oracle to make mathematically grounded decisions and keep the narrative on target.

Algorithmic Monocultures in Hiring

https://algorithmichiring.github.io/figures/pymetrics_homogeneity.png
Employers rely heavily on hiring algorithms, but a study of 3.4 million job applicants found large-scale racial disparities and homogeneous outcomes. Algorithmic monocultures in hiring yield systemic rejections, with 25.87% of Black and 14.74% of Asian applicants facing adverse impact.

A Matter Wi-Fi Light Bulb in Rust on the Raspberry Pi Pico 2 W

https://raw.githubusercontent.com/melastmohican/rust-rpico2-embassy-examples/main/pico-DS18B20_bb.png
This repository contains Rust examples for the Raspberry Pi Pico 2 using Embassy async framework, including sensors and displays. Examples include ADXL345 accelerometer, DS18B20 temperature sensor, DHT11 temperature and humidity sensor, and more.

Show HN: I Derived a Pancake

https://www.absurdlyoptimized.com/img/articles/pancakes-hero.jpg
The author created a pancake calculator to optimize pancake recipes by balancing four axes of quality: interior texture, tang, rise, and exterior crisp. The calculator uses stoichiometry to determine the optimal ratio of ingredients, including acid, leavening agents, and dairy, to create the perfect pancake.

Making peace with your unlived dreams (2023)

The writer is unable to pursue snowboarding due to knee issues, but has come to accept and move on from the dream. They now focus on their current life and hobbies, finding satisfaction in the present moment.

Texas grid flags risks as data centers, crypto sites fail voltage tests

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1worldflag: A blue dot on a transparent background

https://1worldflag.com/wp-content/uploads/2020/04/One-World-Flag-Logo.png
A symbol for our home the blue planet no matter where we live in. One possible way – One possibleflag design to show that we feel united with the whole earth and all its inhabitants. In a world characterized by geographical, social and political differences, the One World Flag is a reminder that we all live on the same planet and have a common future. Flags usually symbolize nations, regions ...

7.8 magnitude earthquake shakes part of southern Philippines. Tsunami possible

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A magnitude 7.8 earthquake struck the southern Philippines on June 8, 2026, causing damage and a tsunami warning in General Santos city. No casualties were reported but a small building collapsed and aftershocks followed.

How's Linear so fast? A technical breakdown

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Linear's speed comes from its local-first architecture, where the browser stores data and syncs with the server in the background. The app's design, including shortcuts and animations, also plays a crucial role in making it feel fast and responsive.

Do we fear the serializable isolation level more than we fear subtle bugs (2024)

https://miro.medium.com/v2/resize:fit:700/1*keS37tRigV2DLMy2itYZGQ.png
Weaker isolation levels in databases can lead to concurrency bugs and security vulnerabilities, as seen in cases like Flexcoin and Poloniex. Using serializable isolation as the default can prevent such issues.

What is the purpose of the lost+found folder in Linux and Unix? (2014)

https://unix.stackexchange.com/Content/Sites/unix/Img/apple-touch-icon@2.png?v=32fb07f7ce26
The /lost+found/ folder in Linux and Unix is for storing files that fsck, the filesystem check and repair command, recovers from a damaged filesystem. You would interact with it after a system crash or power failure, when fsck places recovered files there.

Powering up a module from the IBM 604: an electronic calculator from 1948

https://static.righto.com/images/ibm-650-thyratron/ibm-604-w500.jpg
IBM introduced the Electronic Calculating Punch, type 604, a programmable calculator that used vacuum tubes and was much smaller and cheaper than computers. It was highly successful, with over 5600 units produced, and led to the development of IBM's vacuum-tube computers in the 1950s.

Show HN: Lathe – Use LLMs to learn a new domain, not skip past it

https://raw.githubusercontent.com/devenjarvis/lathe/main/docs/img/read-tutorial.png
Lathe is a tool that generates hands-on technical tutorials on demand using LLM skills, allowing users to learn by working through tutorials themselves. It's a combination of LLM skills and a Golang CLI used to store, manage, and view generated tutorials.

The 29th International Obfuscated C Code Contest (IOCCC) 2025 Winners

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IOCCC29 had a high submission quality and similar volume to last year, possibly due to improved website design and social media presence. The contest's rules and guidelines were rewritten for this year, and the next contest, IOCCC30, is planned for late 2026.

LLMs are eroding my software engineering career and I don't know what to do

https://i.ibb.co/SDdRz6RG/pawel-czerwinski-G6ez-Kt1-XOs-unsplash-1.jpg
The user, a 10-year experienced software engineer, is concerned that their domain expertise in finance and payment processing is becoming less valuable due to advancements in AI and LLMs, which can now perform tasks such as writing code and debugging. The user is worried about their long-term employability and is considering shifting their domain expertise to areas where LLMs are not yet ...

Tech sell-off widens as South Korea index plunges

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Cloning a Sennheiser BA2015 battery pack

https://blog.brixit.nl/image/w300/static//static/files/blog.brixit.nl/1669745922/589714de59c2ac21dfce521799562cc0.png
The user is frustrated with expensive Sennheiser wireless microphone battery packs and decided to replicate them using 3D printing and third-party cells. They successfully created a working battery pack.

My automated doubt development process

The user's AI development process involves automated doubt from multiple perspectives to ensure quality, using subagents to critique and audit artifacts. This process originated from a lack of trust and has developed into a trust signal, requiring patience, practice, and expertise to terminate the loop.

Man-Computer Symbiosis J. C. R. Licklider (1960)

Man-Computer Symbiosis J. C. R. Licklider IRE Transactions on Human Factors in Electronics, volume HFE-1, pages 4-11, March 1960 Man-computer symbiosis is an expected development in cooperative interaction between men and electronic computers. It will involve very close coupling between the human and the electronic members of the partnership. The main aims are 1) to let computers facilitate ...

Proliferate (YC S25) is hiring to building open source Codex

Proliferate is building an operating system for modern engineering, automating software development to make engineering more human. They're hiring an engineering lead to build the core product with high ownership and a top-market salary.

Firefox Merges Support for Vulkan Video Decoding

Mozilla Firefox has added initial support for Vulkan Video, enabling GPU-accelerated video decoding on Linux. The feature will be available in Firefox 153 release on July 21.
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Modern search engines do more than match keywords. When you search for "cozy mystery set in Paris" and get results for "atmospheric detective novel in France" that's vector search at work: documents and queries are converted into lists of numbers, called embeddings, and the search engine finds the documents whose numbers are closest to the query's. Manticore Search ...

Splash Is a Colour Format

https://www.todepond.com/lab/og.png
Each digit represents a different colour channel: red, green, and then blue. the restriction has made me more open to errors and it's totally fine. 900 has full red channel (9) and nothing in green (0) or blue (0). so in my theme, 00 is... off-black. so you can just use lookup table if you want. click here to download the theme - it's free to use and works

An Ohio Valley 100k-watt FM signal is severed in broad daylight

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Mike Kirtner, president of Kindred Communications, reported an FM transmission line was cut in broad daylight at 93.7 WDGG(FM) in Ashland, Ky. The station is operating at reduced power and estimates total repair costs between $70,000 and $100,000.

Office-open-xml-viewer: Office XML document viewer that renders to HTML Canvas

https://raw.githubusercontent.com/yukiyokotani/office-open-xml-viewer/main/docs/images/icon.png
This library allows rendering Office Open XML documents (.docx, .xlsx, .pptx) in the browser using WebAssembly and Canvas 2D API. It supports various formats, including math equations, and can be used with popular frameworks like React, Vue, and Angular.