The West forgot how to make things, now it’s forgetting how to code

https://substackcdn.com/image/fetch/$s_!8_UF!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff32f29d9-18d6-448b-9b03-54c5711e5871_1600x1000.png
The US defense industry's reliance on obsolete technology and lack of skilled workers led to production delays and shortages during the Ukraine war. The industry's focus on cost-cutting and optimization has left it vulnerable to crises.

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

https://miro.medium.com/v2/resize:fit:700/1*9R5yu4-oc3LFPOje_tDTzg.png
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.

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.

An AI agent deleted our production database. The agent's confession is below

Something went wrong, but don’t fret β€” let’s give it another shot. Some privacy related extensions may cause issues on x.com. Please disable them and try again.

GoDaddy gave a domain to a stranger without any documentation

https://anchor.host/wp-content/uploads/2026/04/godaddy-domain-handover-1024x683.webp
A GoDaddy employee transferred a 27-year-old domain without validation, and the company's support team failed to resolve the issue for four days. The domain was eventually recovered by a stranger who accidentally received it, highlighting a major security flaw in GoDaddy's transfer process.

Asahi Linux Progress Linux 7.0

https://asahilinux.org/img/AsahiLinux_logo.svg?d619e737
Linux 7.0 has been released and Asahi progress report includes updates to the Asahi Installer, which now supports UEFI-only installation and firmware updates for ALS and other hardware. The report also covers various hardware improvements, including PMP support, Bluetooth and WiFi coexistence, display controller work, and audio stack progress, as well as upcoming releases and gratitude to supporters.

Tell HN: An app is silently installing itself on my iPhone every day

Headspace app is silently appearing on iPhone 13 Pro around 1pm EST daily. Reports of similar issue on Reddit suggest it may be a widespread iOS issue.

Sawe becomes first athlete to run a sub-two-hour marathon in a competitive race

https://ichef.bbci.co.uk/ace/standard/480/cpsprodpb/b5ee/live/d37abd10-1d33-11f1-801d-ed3cff6bf876.jpg
Sabastian Sawe made history by becoming the first athlete to run a sub-two-hour marathon in a competitive race, crossing the line in 1:59:30. Tigst Assefa also broke her own women's world record in a women-only field, finishing in 2:15:41.

Self-updating screenshots

The user built an automated screenshot system for a help centre in Jelly, using Rake tasks and a headless Chrome browser. This system updates screenshots automatically when the UI changes, reducing maintenance and keeping the help centre current.

Why has there been so little progress on Alzheimer's disease?

EU Age Control: The trojan horse for digital IDs

https://juraj.bednar.io/wp-content/uploads/2026/04/cover-eu-age-1200x670.jpeg
The EU Age Verification app is a reference implementation with several problems, including a fallback to normal KYC providers, attestation lock-in to Google or Apple devices, and weaker cryptography than advertised. The app's design relies on wallet behavior for unlinkability, not cryptographic guarantees.

Fast16: High-precision software sabotage 5 years before Stuxnet

https://www.sentinelone.com/wp-content/uploads/2026/04/fast16_7.jpg
SentinelLABS uncovered a 2005 cyber sabotage framework, fast16, targeting high-precision calculation software with a kernel driver that patches code in memory to tamper with results. The framework was designed for strategic sabotage, introducing small but systematic errors into physical-world calculations.

SWE-bench Verified no longer measures frontier coding capabilities

https://images.ctfassets.net/kftzwdyauwt9/7qMrOFCWWMweIDBUpYFr79/7741661650df6eb935acb5bda179b091/System_Card_Card_SEO_1x1.jpg?w=3840&q=90&fm=webp
SWE-bench Verified, a benchmark for autonomous software engineering, has contamination issues due to publicly available data and flawed test cases, making it unsuitable for measuring model progress. A new benchmark, SWE-bench Pro, is recommended for reporting results due to lower contamination risk and more robust test cases.

Statecharts: hierarchical state machines

A statechart is a visual formalism for complex systems that solves state explosion problems in state machines. It's a great communicator and can be used as an exploratory tool for non-developers and QA.

I have officially retired from Emacs

https://nullprogram.com/img/elfeed2.png
The author has retired from using Emacs after 20 years, replacing it with modal editing and Vim, and is now transferring two of its applications, the Emacs Calculator and Elfeed, to new maintainers.

Butterflies are in decline across North America, a look at the Western Monarch

https://th-thumbnailer.cdn-si-edu.com/VWzQiloUsaGA1Jc336wimiFqN3c=/1000x750/filters:no_upscale():focal(2784x1856:2785x1857)/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/f0/cc/f0cccc48-0697-4243-89b0-1e93aa195dc2/dsc_0152.jpg
Monarch butterflies are declining due to pesticides, habitat loss, and climate change, with a 99% chance of extinction by 2080. Conservationists are working to protect the species, using methods like habitat restoration and tracking monarch migrations to increase their chances of survival.

Waymo says can't avoid bike lanes because riders want to be dropped off in them

https://cdn.road.cc/wp-content/uploads/2026/04/Waymo-London.jpg
Waymo's self-driving taxis in London are programmed to veer into cycle lanes for pickups and drop-offs, despite being illegal and unsafe. Cycling campaigners claim this is a normal practice, as customers expect to be dropped off in bike lanes.

Clay PCB Tutorial

https://freight.cargo.site/w/1024/i/023df547c98cc900f7a565ef2c87d8f1442ce22e304533fd0abc0c50f5608d65/7E014D23-1433-4DFB-A66F-2BBE15BB1905_1_105_c.jpeg
Researchers at Mz* Baltazar's Lab developed a method to create PCBs from natural clay, using a 3D printed stamp and a low-energy firing process. The project aims to create sustainable and locally sourced hardware, reducing the reliance on conflict minerals and promoting fair trade practices.
https://opengraph.githubassets.com/9aac57a2e2147ebe6e2bc8ad226042f9c36378c376882e57de036d75964e0f74/orgs/community/discussions/192666
🏷️ Discussion Type Product Feedback πŸ’¬ Feature/Topic Area Issues Body In some repositories, any link to an issue form an issue stared to open in a popup overlay instead of navigating to it. Is that ...

Meetings are forcing functions

https://cdn2.mooreds.com/wordpress/wp-content/uploads/2020/08/letters-to-a-new-developer-210x300.png
Organizations can use standing meetings to maintain progress on complex projects with multiple stakeholders. By reviewing previous to-dos, it creates pressure to make progress and accountability among team members.

Dillo Browser Release 3.3.0

Dillo 3.3.0 adds new features, configuration options, and bug fixes, including experimental FLTK 1.4 support and a new dilloc program for command-line control. It also introduces page actions, OAuth authentication, and remote control via a UNIX socket.

Show HN: Free textbook on engineering thermodynamics

https://thermodynamicsbook.com/thumbnails/thermodynamics_cleynen_book.png
This textbook provides a clear introduction to thermodynamics for university students and engineers, covering key concepts with examples and problems. It also includes historical explorations to connect ideas to their origins and impact.

Interview with Bob Odenkirk

Bob Odenkirk had a cult comedy career before transitioning to mainstream success as a dramatic actor, and now he's an action movie star. He's reflecting on a 2019 heart incident that left him with a blank experience, but a novel helped him express his feelings about reliving the same time period.

The Super Nintendo Cartridges (2024)

https://fabiensanglard.net/10nes/cic_duo_nofont.svg
The Super Nintendo had various enhancement chips, including the SA-1, CX4, and GSU-1, which improved performance and added features to games. These chips were used in a total of 72 games.

The 1944 Warsaw Uprising, in Color

https://cdn.prod.website-files.com/638dd320365b13ffd1a6ada8/63a44fc8c97e6a32011a0f38_CN-1-Cz_03_MF_03-72_A_002.jpg
Ręczna, precyzyjna koloryzacja pod okiem historyków oraz varsavianistów pozwoliła wiernie odtworzyć powstańczą Warszawę. Barwy przywrócone postaciom i miejscom ożywiły atmosferę i emocje tamtych dni. Zdjęciom towarzyszą eksponaty ze zbiorów Muzeum Powstania Warszawskiego.

GnuPG – post-quantum crypto landing in mainline

A new version of GnuPG, 2.5.19, is available with several new features and bug fixes. It is recommended to update to this version before the old 2.4 series reaches end-of-life in two months.

When the cheap one is the cool one

https://arun.is/.netlify/images?url=_astro%2Fneo_colors.9Anajey7.jpg&w=1440&h=960&dpl=69eeae0cf8ffc700089b6e18
Apple and Porsche created affordable products by stripping down existing models and focusing on what's essential, then adding unique features to make them exciting. This approach reveals what customers value and can lead to a deeper understanding of the tool and one's capabilities.

Chernobyl wildlife forty years on

https://ichef.bbci.co.uk/images/ic/480xn/p0ngd8ng.jpg.webp
A scientist, Pablo Burraco, discovered a dark-colored tree frog in Chernobyl's exclusion zone, sparking a question about radiation's impact on local wildlife. Research suggests some species may have adapted to radiation, but the evidence is still debated among scientists.

The Visible Zorker: Zork 1

https://eblong.com/infocom/visi/pic/waiting.gif
A software exhibit that allows you to explore Zork and also Zork's source code at the same time.

FreeBSD Device Drivers Book

https://opengraph.githubassets.com/b2a0c1e944cba24f047d5f319cfefa088ccc4438955535aa62a9c98ad5363202/ebrandi/FDD-book
The book "FreeBSD Device Drivers" is a free, open-source guide that teaches readers from zero to writing production-quality FreeBSD drivers. It's a guided course with 38 chapters, hands-on labs, and covers the full lifecycle of driver development.

Deep under Antarctic ice, a long-predicted cosmic whisper breaks through

We’re checking your connection to prevent automated abuse

Eden AI – European Alternative to OpenRouter

https://api.producthunt.com/widgets/embed-image/v1/product_rating.svg?product_id=541124&theme=light
Eden AI provides a unified API for accessing various AI models. It offers flexible routing, automatic model switching, and built-in fallback mechanisms for high availability and efficient usage.

Spanish archaeologists discover trove of ancient shipwrecks in Bay of Gibraltar

https://i.guim.co.uk/img/media/e6061b1b8fb08d4492a358f75035d4a4727ebe7d/0_0_1600_1200/master/1600.jpg?width=445&dpr=1&s=none&crop=none
Spanish archaeologists have documented 151 sites in the Bay of Algeciras, including 134 shipwrecks dating from the 5th century BC to the 2nd World War. The wrecks reveal the history of war, trade, exploration, and settlement in the strategically important waterway.

At least 10 people tied to sensitive US research have died or disappeared

https://media.cnn.com/api/v1/images/stellar/prod/gettyimages-2244381126.jpg?c=original&q=w_860,c_fill
At least 10 US scientists connected to nuclear and aerospace research have died or disappeared in recent years, prompting concerns of a possible sinister connection. The FBI is investigating the cases, working with other agencies to find answers and potential links.

If you stop hiring juniors, your senior engineers own you

https://evalcode.com/img/justinsmestad.png
Companies that stop hiring junior engineers due to AI may face a talent pipeline crisis in the future. This is because senior engineers will eventually retire, and without a junior pipeline, companies will struggle to replace them.

Show HN: AI memory with biological decay (52% recall)

https://raw.githubusercontent.com/sachitrafa/YourMemory/main/demo.gif
YourMemory is a persistent memory layer for AI agents that uses the Ebbinghaus forgetting curve to simulate human memory. It supports multiple agents with isolated memories and controlled access to shared context.

Plants can sense the sound of rain, a new study finds

https://news.mit.edu/sites/default/files/styles/news_article__download/public/download/202604/MIT-SeedSound-01-press.jpg?itok=bl8IJtM2
MIT engineers found that rice seeds germinate faster when exposed to the sound of rain. The sound vibrations dislodge statoliths, tiny gravity-sensing organelles, stimulating seed growth.

AGPLv3Β§74 Empowers Users to Thwart Badgeware Like OnlyOffice

https://sfconservancy.org/static/img/conservancy-logo.png
A company, Ascensio System SIA, added a restriction to their software, Onlyoffice, licensed under AGPLv3, requiring users to display their trademarked logo. This restriction is considered a "further restriction" that users can remove under AGPLv3Β§7ΒΆ4.

A Guide to CubeSat Mission and Bus Design

A Guide to CubeSat Mission and Bus Design

Exposing Floating Point – Bartosz Ciechanowski (2019)

https://ciechanow.ski/images/float_bias.svg
The article explains how floating point numbers work, including their representation in base-2 scientific notation, and how they are encoded into binary format using the IEEE 754 standard. It also discusses the limitations and quirks of floating point numbers, including rounding errors, subnormals, and the behavior of NaNs and infinities.

Two Athletes Break Sub-2-HR Marathon in Adizero Adios Pro Evo 3

adidas athletes Sabastian Sawe and Yomif Kejelcha broke the sub-2-hour marathon barrier at the London Marathon. Sabastian and Tigist Assefa set new world records in their respective categories.

Show HN: Tiao, A two-player turn-based board game

https://playtiao.com/tiao-thumbnail.png
Create a private game and share the code, or join a friend's game with theirs. Jump into a game against a random opponent. Pick a time control or play without one.

Voice Modems

https://computer.rip/static/cubes.svg
The design of modern cellphones' audio architecture is a legacy of the original Hayes Smartmodem, which introduced a standardized control interface between modems and computers in the 1980s. The Smartmodem's influence led to the development of voice modems in the 1990s, which allowed computers to make and receive voice calls using AT commands and standardized protocols like V.253.

The fastest Linux timestamps

https://www.hmpcabral.com/assets/images/vdso/duration.png
Implementing custom timers on x86 Linux can speed up timestamping by 30% without sacrificing precision, but requires understanding Linux clocks and vDSO internals. By bypassing vDSO and using the TSC, developers can achieve highly predictable latency and reduce timing overhead, but must consider cache misses and kernel updates.

In Kannauj, perfumers have been making monsoon-infused mitti attar for centuries

The website is blocked due to security reasons after a suspicious action was detected. Please email the site owner with the Cloudflare Ray ID and details of the action that triggered the block.

Tiled Words 6 Month Update

https://paulmakeswebsites.com/writing/six-months-of-tiled-words/cover.jpg
User wanted to make games since childhood, but struggled to create a successful game as an adult. However, their game Tiled Words surpassed expectations with thousands of daily players and an award, allowing them to release new puzzles daily and engage with a supportive community.

MoQ Boy

https://moq.dev/blog/moq-boy/bren.png
The user created a homebrew Twitch Plays Pokemon emulator using MoQ, a cloud-based streaming platform, to save bandwidth and CPU. The emulator uses MoQ's discovery mechanism to find available games and players, demonstrating how to use MoQ for robots and other applications.

If more than 50% press blue, everyone survives. Red pressers always survive

https://shankwiler.com/posts/button-survival-hypothetical/outcomes.png
The original scenario involves a blue and red button where more than 50% choosing blue ensures everyone survives, otherwise only red button pressers survive. The likeliest outcome is nearly 50% choose blue, resulting in half the world dying.

QNX on the Commodore 900 – Raiders of the lost hard drive [video] (2025)

https://archive.fosdem.org/2025/assets/style/logo-gear-7204a6874eb0128932db10ff4030910401ac06f4e907f8b4a40da24ba592b252.png
A user restored a Commodore C900 prototype to working condition after years of inactivity. The restoration involved reverse-engineering and digital archaeology to fix issues with the power supply, keyboard, and hard drive.

The predictable failure of the QDay Prize

The QDay Prize competition failed due to a "Falling With Style-style trick" submission that used random calls instead of quantum calls. This highlights the need for a blameless post-mortem to improve future competitions.

Lessons from building multiplayer browsers

https://www.alejandro.pe/writing/multiverse.webp
The user joined a startup as a founding engineer working on a new browser, Sail, which aimed to be a collaborative software with real-time multiplayer features, but ultimately failed to gain traction due to positioning and market challenges. The user learned valuable lessons about product thinking, engineering, and design, and now advocates for the importance of clear positioning, user ...

Branimir Lambov from IBM on Cassandra

Branimir, a Cassandra committer, shares his background and experience working on software infrastructure. He started with digital signals processing and natural language processing before joining IBM and contributing to Cassandra for over a decade.

The Secret Life of NaN (2018)

The IEEE 754 floating point standard defines a special value called Not-a-Number (NaN) which can be used to represent non-floating point values and their types in dynamically typed languages by storing them in the 51-bit payload. This technique, called NaN-boxing, is used in JavaScriptCore, SpiderMonkey, and LuaJIT to store non-float values and their types in NaNs, allowing for efficient ...

Things C++26 define_static_array can't do

https://raw.githubusercontent.com/Quuxplusone/blog/master/images/pumpkin-toss.jpg
The C++26 feature std::define_static_array allows creating a static-storage constant array from a constexpr-time computation, but it has limitations such as requiring structural types and not supporting non-copyable types. The "constexpr two-step" remains a viable alternative for creating static arrays from constexpr-time computations, but it has its own limitations and may be replaced by a ...

U.S. Mint Buys Drug Cartel Gold and Sells It as 'American'

The US Mint sells gold coins stamped with American icons, but an investigation found the gold often comes from foreign, sometimes illegally mined sources. The Mint has flouted a 1985 law prohibiting foreign gold, despite internal warnings and across administrations.

APL is more French than English

Professor Alan J. Perlis discusses his experience with APL, a programming language that he finds elegant and expressive. He notes that APL's unique properties, such as its ability to express complex ideas in a concise manner, make it a valuable tool for programming.

What the FCC router ban means for FOSS

https://sfconservancy.org/static/img/conservancy-logo.png
The FCC banned new US-made home routers due to national security concerns, but existing devices and FOSS routers like OpenWrt are unaffected. The FCC's decision may restrict software updates to existing hardware, but users can still install community software like OpenWrt.

1:59:30: Sabastian Sawe Shatters the 2-Hour Barrier at 2026 London Marathon

https://www.letsrun.com/wp-content/uploads/2026/01/CMYK_TCSLM_primary_black_Dated_2026-768x281.webp
Sabastian Sawe broke the marathon world record with a time of 1:59:30, becoming the first man under 2:00 in an official race. He was closely followed by Yomif Kejelcha, who ran 1:59:41 in his marathon debut.

Show HN: Startup Equity Adventure Game

https://options-game-polymathrobotics.pythonanywhere.com/static/img/og-preview.png
Learn how startup equity really works β€” from founding to IPO. An interactive 9-stage journey through SAFEs, option pools, dilution, vesting, and exits.

Europe to burned American scientists: We'll take you in (2025)

https://www.politico.eu/cdn-cgi/image/width=1160,height=774,quality=80,onerror=redirect,format=auto/wp-content/uploads/2025/04/02/GettyImages-2203751527-scaled.jpg
Pentagon emails suggest retaliatory measures against alliance members not supporting US-Israel war in Iran. European leaders, including Spain's SΓ‘nchez and China's president, promote cooperation and reject conflict.

Reviving BrowserID in 2026

You're building WKID, a BrowserID-style identity provider for your personal projects. WKID is a lightweight, federated, and private IdP that uses email domains for authentication, allowing you to control your own authentication flows.

Show HN: A free ESG stock screener that publishes its losses and methodology

https://jumpstartsignal.com/og_image.jpeg
Past performance does not guarantee future results. Returns shown are split-adjusted closing prices for illustration only and are not a recommendation.

Show HN: Auge Vision from Your Terminal

https://auge.franzai.com/images/bell-labs-transistor.jpg
A complex winter scene - perfect for stress-testing classification (snow, hunters, dogs, village, ice skating) the port takes advantage of calcareous sandstonen(kurkar) reefs that createa natural. breakwater and safe haven after 1965 the jaffa port gradually began to sink; after that it was no longer used for cargo. the image was taken from the famous 'black cat

Tip: Web requests should not be measured in Hz [Hertz]

The scene describes a moment of tension and pain as Thezea struggles to breathe, while Sartha and Jonathan discuss a legend and the Party's hold. A dark presence looms, and they decide to keep the wolves separated.

Show HN: Browse GitHub repos in Emacs without cloning

https://raw.githubusercontent.com/agzam/remoto.el/main/test/el-remoto-logo.png
remoto.el registers a read-only GitHub file system in Emacs, enabling standard file operations via the GitHub API. It provides a simple way to browse GitHub repos without cloning them.

Does internet advertising work? (2020)

My Homemade PBX (2002)

https://wandel.ca/homepage/pbx_small.jpg
The user built a dial telephone system with eight extensions, a central office line, and features like ring pattern selection, call forwarding, and DTMF tone detection. The system uses an 8031 microcontroller, EPROM, and SRAM to control relays, generate tones, and sequence digital signals, resulting in a functional and entertaining telephone system.

The Knight Programming Language

https://opengraph.githubassets.com/758cdf0a343bcaabee62d4446a8f2b164bf8a35300a9d6d1886f0e25bd364796/knight-lang/knight-lang
The Knight Programming Language. Contribute to knight-lang/knight-lang development by creating an account on GitHub.

Human Source License (HSL)

https://opengraph.githubassets.com/90767e1f163ecbcf6701cadbf373314e0ab9323b49ab32916b557c8bcc267638/xdgrulez/human-source-license
HSL is a license that protects human creativity by requiring commercial licenses from large companies and AI users. It keeps software free for communities and consulting services while capturing value from those who profit most.

London Reverse Marathon FAQ

https://assets.softr-files.com/applications/1eb5586e-4591-4fc7-819d-264ac5ad0c5f/assets/a3e72f98-1c43-44c1-933b-77263a04aa76.png
We will meet in Trafalgar Square between 11:15 and 11:30 for a briefing before walking to Birdcage Walk for a 00:01 start. The route is a reverse London Marathon course, passing landmarks like Buckingham Palace and Tower Bridge.

Our Principles

https://images.ctfassets.net/kftzwdyauwt9/6WWxPp3wjOGuogkWZBh89B/54c771f978bb831a0d90c0a9cff49ccc/oai-ms-1x1.png?w=3840&q=90&fm=webp
OpenAI aims to democratize AI, empowering people to achieve their goals and live more fulfilling lives. They prioritize minimizing harm, promoting resilience, and adapting to an uncertain future to ensure AI benefits all of humanity.