Organic Maps

https://organicmaps.app/sponsors/nlnet.svg
Organic Maps is a free, ad-free, offline GPS app for various activities, powered by OpenStreetMap data. It's developed by the open-source community with support from grants and donations.

OpenPrinter

https://www.opentools.studio/web/image/1446-c6a72ae3/DSC_6236.webp
Openprinter is a compact, fully repairable printer with refillable ink and versatile paper options. It's open source, adaptable, and eco-friendly with low costs and easy maintenance.

Train sim created by just one person is being called the best ever made

https://kotaku.com/app/uploads/2026/05/06-running-train.jpg
Running Train, a hyper-realistic train sim by solo dev Novatetsu Games, blends fictional Japanese landscapes with intricate details like logical powerlines and weather effects, offering immersive gameplay through precise controls or free camera exploration. Praised for its stunning realism and dedication to detail, it’s hailed as a top-tier simulation with plans for expanded routes and features.

It's not about physical vs. digital games, it's about ownership

https://popcar.bearblog.dev/static/og-image.png
PlayStation's decision to stop producing disks for new games is about killing ownership and limiting consumer rights. This move will make it harder for people to trade, sell, and preserve games.

If you're a button, you have one job

https://unsung.aresluna.org/_media/if-youre-a-button-you-have-one-job/ogimage.png
You're concerned that your interactive essay may appear old-fashioned, but its challenges are universal. A predictable and pleasant interface is essential, even for casual users, to avoid situational disability and power user-ness.

EU Council forces Chat Control via fast-track

https://heise.cloudimg.io/width/610/q85.png-lossy-85.webp-lossy-85.foil1/_www-heise-de_/imgs/18/5/1/1/1/2/4/1/shutterstock_2470794027-5df9a4f153e1f773.jpeg
EU Council pushes for reactivation of voluntary chat monitoring regulation, despite Parliament's resistance. The move aims to close a legal loophole and increase pressure on MEPs to approve the measure before the summer break.

Has_not_been_viewed_much

The Art Institute of Chicago's API includes a boolean field 'has_not_been_viewed_much' for artworks viewed less than 200 times since January 1, 2010. The artworks are likely lesser-known or less popular pieces in the museum's collection.

The future of Flipper Zero development

https://blog.flipper.net/content/images/size/w100/2020/10/9a8180b4-80fa-4c50-9e83-bee59e3bc348-1.png
The Flipper Zero team has decided to allocate resources to maintain the firmware and support community contributions. They will review community requests through GitHub Discussions, with voting for feature requests and stricter contribution rules.

Introduction to Compilers and Language Design (2021)

This is a free online textbook on compiler construction by Prof. Douglas Thain, suitable for undergraduate students with C programming experience. The book offers a one semester introduction to building a simple compiler for a C-like language.

Shadcn/UI now defaults to Base UI instead of Radix

https://ui.shadcn.com/_next/image?url=%2Fimages%2Frhea-light.png&w=3840&q=75&dpl=dpl_EEsyiWuonzGkyNCanptY2cnVtzze
Shadcn/ui has rebuilt every component for Base UI, keeping the same abstraction, and letting users choose between Radix and Base UI. New projects default to Base UI, and a migration skill is available to help users migrate their existing projects from Radix to Base UI.

Starring the Computer

• commodore 64 • 23 (1998) • airwolf - season 2, episode 3, "moffett's ghost' (1984) • alien: romulus (2024) as the world turns – episode 19890928 (1989). ashes to ashens (2008) • altamont now (2009) • being erica (season 1, episode 1) • dr. robot — season 4, episode 3 '403 for

Completing a computer science degree on Coursera

https://notesbylex.com/_media/bachelors-after-hours/uni-assessment-results.png
The user completed a Bachelor's Degree in Computer Science on Coursera after 3 years and 9 months of part-time study while working full-time, and they found the experience challenging but rewarding despite some frustrations with the platform and grading process. The user appreciated the flexibility and affordability of the program, as well as the opportunity to learn from and connect with ...

Does code cleanliness affect coding agents? A controlled minimal-pair study

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
Researchers evaluated coding agents on clean and messy codebases to isolate the effect of code cleanliness. Clean codebases did not affect pass rates but reduced agents' computational cost and navigational efficiency by 7-8% and 34% respectively.

The Private Capture of Public Genius

https://substackcdn.com/image/fetch/$s_!QaLb!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbade925a-ee2d-40b9-846d-e809020f021f_465x421.png
The 1956 patent decree allowed AT&T to license its patents royalty-free, leading to a surge in innovation and the creation of Silicon Valley, but also raised concerns about the concentration of economic power. Today, the use of large language models (LLMs) trained on the internet raises similar concerns about the exploitation of public goods and the potential for market dilution, with the ...

Cannabis users face substantially higher risk of heart attack (2025)

https://www.acc.org/-/media/9E7FA8BE7B44449AB9993CC9237EF455.png
Two new studies found that cannabis users are more likely to suffer a heart attack than non-users, with a 50% increased risk among those who use the drug. Researchers recommend clinicians ask about cannabis use to understand patients' cardiovascular risk and warn users of potential risks.

New AI tutor achieves 0.71-1.30 SD effect size in Dartmouth course [pdf]

Phosphor, a digital learning platform, increased final exam performance by 0.71-1.30 SD in Introductory Statistics at Dartmouth College. Full engagement with Phosphor showed a substantial cumulative benefit, with students who passed all three Module Reviews scoring 7.1 points higher on the final exam.

Delta flight hit by firework while landing at Midway Airport on Fourth of July

https://media.nbcchicago.com/2019/09/DELTA-1.jpg?quality=85&strip=all&resize=320%2C180
Delta Flight 1076 made contact with a firework while landing at Chicago's Midway Airport on July 4. The plane landed safely without an emergency landing, despite the incident.

Japan's Hayabusa2 probe to conduct flyby of Torifune asteroid

https://www3.nhk.or.jp/nhkworld/upld/thumbnails/en/news/20260705_01_1668653_L.jpg
Japan's Hayabusa2 space probe completed a flyby of the Torifune asteroid without incident. The probe is expected to arrive at its final target asteroid in 2031 to aid in planetary defense efforts.

Small Penis Rule

The small penis rule is an informal strategy to avoid libel lawsuits by making a character's genitalia unrecognizable. However, its effectiveness is disputed as it may be seen as defamatory and could deter legal action.

Programmers need to start meditating

https://jacob.gold/images/programmers-need-to-start-meditating-now.png
Programmers used to experience a meditative flow state while coding, but this has changed with the shift to multitasking. Now, programmers should consider meditation as a hobby or use apps like Calm to compensate for lost mental clarity.

Scheme Is a Hoot

You're learning Scheme and using Hoot to compile it to the Web, overcoming challenges with its instability and documentation. You've successfully set up your code to run on native Guile and WASM via Hoot, with tests running in both environments.

Europe's new climate in seven charts

https://ichef.bbci.co.uk/news/480/cpsprodpb/2e78/live/1aec6a50-7701-11f1-9510-1546718f668b.jpg.webp
Scientists predict UK and Europe's warmer climate due to human-induced climate change, making extreme heat events more likely and intense. Rising global temperatures have led to record-breaking heatwaves in June, with temperatures peaking at 37.7C in the UK and 40C in some European countries.

Fast Software, the Best Software (2019)

https://craigmod.com/images/about/craigmod-headshot-2025-small-01.jpg
The user values fast software that is both functional and intuitive, citing examples of speedy applications like nvALT, Sublime Text, and Figma, which provide a smooth user experience and allow for efficient workflow. Slow software, on the other hand, can be frustrating and lead to decreased productivity, as seen in examples like Google Maps, iTunes, and older versions of Adobe Photoshop.

Phosh 0.56.0

Phosh's new release includes improvements such as hiding apps on immutable distros and faster startup times. It also adds new panels and features like atomic OS updates and re-enabling hidden apps.

Mark Zuckerberg tells staff that AI agents haven't progressed enough

https://techcrunch.com/wp-content/uploads/2024/10/GettyImages-1968119319.jpg?w=1024
Meta CEO Mark Zuckerberg told staff that AI development pace has not accelerated as expected. He believes AI investments will start showing improvements in 3-6 months despite recent job cuts and restructuring.

Jim Keller's startup is building a factory to mass-produce small chip fabs

https://cdn.mos.cms.futurecdn.net/PoCxHQ8gKEscb2NWQov7wZ.png
Fab2, a semiconductor tooling startup, has rebranded and moved its operations to Texas, focusing on mass-producing small fabs and prototyping speed. The company aims to distribute production across many small, replicable fabs, contrasting with Tesla's Terafab, a massive manufacturing campus.

Run Windows 2000 on a DEC Alpha with a new es40 fork

https://raymii.org/s/inc/img/94c83ce76d8b4e73a02aff9e936b28d1.png
A new fork of the es40 alpha emulator, AXPBox, has been released with improved features. It allows running Windows 2000 on the DEC Alpha with massive speedups due to a JIT compiler.

Zuckerberg's Increasingly Bizarre War on Whistleblowers

https://i0.wp.com/craphound.com/images/27Jun2026.jpg?w=840&ssl=1
Mark Zuckerberg is waging a bizarre war on whistleblowers, including Sarah Wynn-Williams, author of Careless People, which exposes Facebook's misconduct. Zuckerberg is demanding $111m and silence from Wynn-Williams, who has complied despite the absurdity of the situation.

Composite Video on the NES: Why's it so wobbly?

https://nicole.express/assets/img/wobbly/b.png
The author discusses the NES's composite video signal, which has a wobbly picture due to its design. The NES's colorburst frequency is a half-integer multiple of its line rate, causing artifacts in the image.

Claude Design System Prompt

https://opengraph.githubassets.com/0b72473d0b6cf46520b1e6f7cadfce94c386c63c03122c6b769ddcfaee23ad0a/Trystan-SA/claude-design-system-prompt
This system prompt and skill library turns an LLM into a design collaborator with an explicit design philosophy and procedural skills. It's open source, MIT licensed, and can be used with various LLMs, including Claude, GPT, and Gemini.

Web-based cryptography is always snake oil

Web-based "end-to-end" encryption is inherently incoherent due to the web platform's design, where client-side code is distributed by the same entity it's supposed to secure against. Companies use this "snake oil crypto" as a legal loophole to exempt themselves from processing warrants, rather than providing actual security, and this approach is vulnerable to changes in law and government coercion.

Cursed circuits #5: capacitance multiplier

https://substackcdn.com/image/fetch/$s_!KgX0!,w_140,h_140,c_fill,f_auto,q_auto:good,fl_progressive:steep,g_auto/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa9f1a08a-adcb-4f54-b52f-be66857c0cbe_600x429.jpeg
The article discusses an op-amp circuit called the capacitance multiplier, which can increase a capacitor's apparent value by using two resistors and an op-amp. This circuit can be useful for signal filtering or timekeeping applications.

The Log is the Agent

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
ActiveGraph inverts the typical agent framework arrangement, with an append-only event log as the source of truth and a working graph as a deterministic projection. This design provides deterministic replay, cheap forking, and end-to-end lineage, making it well-suited for self-improving agents.

Solar rail could become common in Europe after successful trial in Switzerland

https://images.euronews.com/articles/stories/09/82/37/90/1536x864_cmsv2_08ddd015-4096-5f19-be21-c19a1ae3fb19-9823790.jpg
Swiss company Sun-Ways has successfully tested a solar railway in Switzerland, producing 16,000 kWh of electricity in one year. The company plans to expand its solar railway system across Switzerland's 5,317 km railway network, potentially producing 1 TWh of electricity annually.

Show HN: KiCad in the Browser

https://demo.pcbjam.com/og/og-demo.png
The list contains various electronic components and modules. It includes amplifiers, converters, CPLDs, CPUs, devices, diodes, displays, drivers, DSPs, fiber optics, filters, FPGAs, GPUs, interfaces, isolators, jumpers, LEDs, logic, MCUs, memory, motors, oscillators, potentiometers, power management, regulators, relays, RF components, sensors, switches, timers, transformers, transistors, and valves.

Fixing analog audio on the $2.58 HDMI-to-VGA adapter

https://nyanpasu64.gitlab.io/processed_images/noise-sweep.14c9e37528af68a8.png
The user purchased an ultra-cheap HDMI-to-VGA DAC to connect their Nintendo Switch to a CRT monitor and external speakers, but encountered serious noise problems due to the DAC's audio output. After extensive troubleshooting and modifications, including designing a low-pass filter to reduce switching noise and swapping the analog audio channels, the user was able to achieve a functional audio ...

Moby Dick Workout (2022)

You test productivity apps with large texts like "Moby Dick" to ensure they handle user-generated content. If an app passes this test, it may be suitable for your needs, but failing doesn't necessarily mean it's bad.

You need a webring

A webring is a circular linked list of websites with a shared topic, allowing users to navigate between sites. It can be set up using a JSON file and routes like /prev and /next to auto navigate between sites.

Autonomous flying umbrella follows and shields users from rain and sunlight

https://www.designboom.com/twitterimages/uploads/2026/01/autonomous-flying-umbrella-follows-users-i-build-stuff-designboom-fb.jpg
John Tse created an autonomous flying umbrella that follows users, shielding them from rain and sunlight using a drone disguised as an everyday object. The umbrella uses a time-of-flight depth camera, GPS, and a Raspberry Pi to track and follow a person in 3D.

Record-breaking solo rower Kelsey Pfendler arrives in Hawaii

https://gray-khnl-prod.gtv-cdn.com/resizer/v2/B3LAB4R6LFB75DHXS7SGQ6RDRU.jpg?auth=a4b0ab4f3dbc47e50241d27e0beb1c553d2d1db468814317083995d6787188f0&width=800&height=450&smart=true
Kelsey Pfendler completed a record-breaking solo row from California to Hawaii in 43 days, breaking both men's and women's records. She was greeted by a cheering crowd at the Hawaii Yacht Club after rowing over 2,400 miles in her 21-foot boat, Lily.

Combustion engine web-based simulator

Crank-angle-resolved combustion engine simulator: build an engine, watch it run, and read real thermodynamics — P–V diagrams, dyno curves, knock prediction and more.

TabFont – guitar tabs rendered as you type

Patching MechCommander's "left arm bug" for fun and profit

The user fixed a bug in MechCommander 1 where large weapons were being concentrated in the left arm of a mech, making it vulnerable to losing that arm. The user created a patch to fix this issue by changing the game's code to distribute large weapons across multiple locations on the mech, and also updated the weapon classification function to default to small weapons instead of large ones.

DNSGlobe – Rust TUI to watch DNS propagate around the world

https://raw.githubusercontent.com/514-labs/dnsglobe/main/demo/demo.gif
Dnsglobe is a Rust TUI that checks DNS propagation globally, querying 34 resolvers in parallel and showing results on a world map. It can be installed via Homebrew or crates.io and used to track DNS propagation for a domain.

A sociotechnical threat model for AI-driven smart home devices

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
UK domestic workers face AI-driven privacy risks in both employer and personal homes due to surveillance and data flows. A sociotechnical threat model identifies institutional adversaries and maps risks across interconnected households.

Megawatts by Microwave

https://computer.rip/static/img/bpa/1.png
The US Army Corps of Engineers and the Bureau of Reclamation built dams on the Columbia River for various reasons, including irrigation, electricity, and national defense. The Bonneville Power Administration (BPA) was formed to distribute power from these dams, creating a regional power grid and pioneering modern electricity pricing and distribution.

Return of the Nigerian Prince Redux: Beware Book Club and Book Review Scams (2025)

https://writerbeware.blog/wp-content/uploads/2014/11/Blog-images-scam-3-1024x683.jpg
A Nigerian scammer is using AI-generated emails to target authors with personalized marketing offers, then demanding access to their KDP accounts. The scammer is now using various iterations, including book club impersonations and fake private review groups, to charge authors for features or spotlights.

Zero-copy in Go: sendfile, splice, and the cost of io.Copy

https://segflow.github.io/content-assets/zero-copy-sendfile-splice/flamegraphs/wrapped.svg
A middleware change in a Go file-serving service caused a slowdown due to a single line of code that wrapped a *os.File in a logging reader, losing the fast path optimization. The fast path is preserved when using io.LimitReader, but wrapping with any other io.Reader loses the optimization and causes significant CPU overhead.

Installing A/UX 1.1 like it's the 90s

https://thomasw.dev/assets/posts/aux11/1.png
The user successfully installed A/UX 1.1 on a Macintosh IIx emulator called Snow, overcoming several bugs and hardware emulation issues. A/UX 1.1 has a UNIX-y interface and allows running some graphical Toolbox applications, but lacks a full graphical interface like A/UX 3.x.

Knowledge Should Not Be Gated

https://www.formaly.io/knowledge-should-not-be-gated.png
The author argues that traditional approaches to knowledge management, such as retrieval-augmented generation, have gated knowledge behind infrastructure and made it unreadable.

University of Oxford Is Older Than the Aztec Empire and Other Facts of History (2013)

https://th-thumbnailer.cdn-si-edu.com/xcB7oXeMOkb9gkW_yQLZwFAlfkA=/1026x684/filters:no_upscale():focal(700x527:701x528)/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/90/f3/90f35dd0-b950-41ab-abef-9fe6188a6fc7/oxfordaztec.jpg
The University of Oxford was established in 1096, but the University of al-Qarawiyyin in Morocco is the oldest continuously operating institution of higher education. The Aztec civilization began in 1325, nearly 230 years after teaching started at Oxford, highlighting the skewed nature of human understanding of history.

Egg consumption inversely correlated with Alzheimer's

https://cdn.ncbi.nlm.nih.gov/pubmed/persistent/pubmed-meta-image-v2.jpg
Egg consumption was inversely associated with Alzheimer's disease risk in a large cohort study. Moderate egg consumption was linked to a lower risk of Alzheimer's disease in a health-conscious population.

sqlite-utils 4.0rc2, mostly written by Claude Fable (for about $149.25)

https://static.simonwillison.net/static/2026/fable-plan-usage.webp
The user used Claude Fable to review and improve the sqlite-utils 4.0 release, fixing several bugs and improving transaction handling, and the new release includes comprehensive documentation on the transaction model. The user also upgraded to a higher Fable plan to increase their allowance and estimated the cost of the session using AgentsView.

Understanding B-Tree Indexes in PostgreSQL: A Comprehensive Guide– Part 1

https://miro.medium.com/v2/resize:fit:700/1*PnoPiIkHMkqby1RZY_xlCA.jpeg
PostgreSQL uses B-Tree indexes for efficient data retrieval, which are optimized for balance and retrieval efficiency. B-Tree indexes are based on the Lehman and Yao Algorithm and consist of nodes with more than two children, maintaining data in sorted order.

Falling fertility on the left as key driver of US birth decline

https://media.springernature.com/w215h120/springer-static/image/art%3A10.1057%2Fs41599-023-02452-w/MediaObjects/41599_2023_2452_Fig1_HTML.png
US fertility rates correlate with political orientation, with right-wing individuals maintaining higher fertility rates than left-wing individuals. This trend may contribute to shifting the US population's ideological composition over time.

Pi squared is nearly 10

https://mihai.page/imgs/logo_600.png
The user discusses the number tau, pi, and their approximations. They explore the Basel problem and its relation to the approximation of pi squared being close to 10.

Is The Economist Always Wrong?

https://www.economist.com/sites/default/files/20030614issuecovUS400.jpg
The Economist's predictions have been criticized for being inaccurate, but an AI model found that they were right more often than wrong, especially when they were neither too conventional nor too daring. The magazine's record shows that it has made some accurate predictions, such as the rise of Bitcoin and the spread of covid-19, but also some incorrect ones, like the peak in global oil demand.

Why DMARC's new "NP" tag can fail with DNSSEC

https://dmarcwise.io/_app/immutable/assets/gdpr-logo.DDzeyzED.png
The DMARC np tag is not always working as expected due to a clash between the DMARC specification and the Compact Denial of Existence in DNSSEC specification, affecting domains using DNSSEC with major DNS providers. DMARC implementations can choose to deviate from the DMARC RFC or ensure that NXDOMAIN restoration and the CO flag are consistently supported and used in the DNS resolution ...

Dependencies should be fetched directly from VCS

The author compares Ruby's dependency management to Go's, finding Go's system more secure due to its direct VCS fetching and lack of a "publish a package" step.

Connections in Math: the two kinds of random

https://stillthinking.net/_astro/two-files-histogram.DqGXH5PO_ZtbGfR.webp
The user discusses the concept of compressibility and how it relates to statistical randomness and algorithmic structure, using the example of the first million digits of pi versus a random sequence of digits to illustrate the difference between statistical and structural compressibility. The user also explores the concept of Kolmogorov complexity and how it relates to the compressibility of ...

Do you hate XML? (2010)

Sigfrid Lundberg, a retired Internet programmer and software developer, shares his 15-year experience working with XML and its pros and cons. He notes that developers must become domain experts to process XML, just like with other technologies, and that XML provides an interoperable transfer syntax lacking in RDBMSs.

My road trip with the do-gooding cactus smugglers

https://www.economist.com/cdn-cgi/image/width=1424,quality=80,format=auto/content-assets/images/1843_20260305_1843_CACTI_01.jpg
Ran Fowler searches for rare succulents, specifically Agave shawii, with unique spines. Various stories of beauty, labor, and coolness are intertwined with Fowler's plant-hunting expedition.

My ASN Journey series (2024)

https://www.animmouse.com/img/animmouse.png
The user is on an ASN journey to explore BGP and own an IP address, focusing on IPv6 due to its availability and lower costs. They created a tutorial on setting up BGP from scratch and discuss the benefits and challenges of owning an ASN and IPv6.

Vaclav Havel, the Power of the Powerless (1978)

In post-totalitarian systems, ideology becomes a self-contained reality that serves power, but living within the truth has explosive power to disrupt the system. The hidden sphere of truth is the primary breeding ground for opposition, which emerges from the existential level of human consciousness and conscience.

The Engineer in the Half-Space

https://yusufaytas.com/images/2026/07/engineer-half-space-credit.jpg
Mitch is a gap reader who notices and fixes underlying issues in the system, making it easier for others to work together and reducing coordination costs. His value is often overlooked because his work is invisible, but he is doing real engineering work by building the operating system around software development.

Mouse: Precision Editing Tools for AI Coding Agents

https://hic-ai.com/opengraph-image?0965d50c6d8fc51d
HIC Mouse is a powerful AI agent file-editing tool with patent-pending technology. It offers coordinate-based editing, staged changes, and rollback features for improved accuracy and control.

Every postcard tells a story

https://cdn.slowdownwiseup.co.uk/media/original_images/Postcards-WEB.jpg
The user shares a collection of postcards with various stories and messages, including one about a person who thinks they saw their mother in a chairlift photo, another about a person's love for Brooklyn, and a third about a person's epiphany about Atlantean technology. The user also mentions a competition to submit a short story or poem in response to a postcard image, with a prize of £300 ...

The Plight of the Martian Farmer

https://substackcdn.com/image/fetch/$s_!TmZW!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F08ab0852-eb83-4fe1-a65a-bed125e077b4_1100x828.jpeg
Biosphere 2 was a large-scale habitat built as a complex of conjoined greenhouses, where a crew of eight lived for two years in conditions of full material closure, growing their own food and recycling their waste. The facility's unique design and approach to farming, which combined both gnotobiological and ecological methods, has provided valuable insights into what living in a Martian ...

Catastrophe theory; geniuses and maniacs (2011)

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiUxspfccHDlmwznv_A8mdVhsr0PBNjSCUvXc4b62tfhHhNHluF04KbdFDRGo5TSY1hHLreXzHMYL0fxlN3mwHVGMWP2YBKD0GbsxAhHY-Ic1m-GULcpfbPcVNCydY3saveU5NSEv029W4/s400/geniusmaniac.jpg
A user is referencing V.I. Arnold's book on catastrophe theory, specifically a model of creative personality development with three parameters: technical proficiency, enthusiasm, and achievement. The model describes a catastrophe when enthusiasm outpaces technical proficiency, leading to a sudden drop in achievement.

Dark mode with web standards

https://olliewilliams.xyz/dark-mode-cover.png
To respect a user's OS setting and allow customization on a per-site basis, use the prefers-color-scheme media query in CSS and a meta tag to set the color scheme. However, there's a disconnect between color-scheme and prefers-color-scheme, and implementing dark mode can be challenging due to browser limitations and bugs.

Prism: An Impure Functional Language With Typed Effects

https://www.stephendiehl.com/images/sd-social-preview.png
The author describes Prism, a proof-of-concept functional compiler that models effects with modern types inspired by OCaml, Haskell, and Koka, allowing for composable and polymorphic effects. Prism uses a novel approach to effects, including algebraic effect handlers, row polymorphism, and Perceus reference counting, to achieve determinism and garbage-free execution.

Pint in England

https://dispatch-media.com/content/images/size/w1200/2026/06/1.jpg
Burton upon Trent is a town in England known for its rich beer history and natural mineral-rich water. The town's breweries, both large and small, use this water to produce a wide variety of beers.

Intuitive Quantum Electrodynamics

https://forwardscattering.org/files/clutch_disengaged.png
Quantum electrodynamics is a kind of semiclassical theory, without their field modes being quantised. the matter and electromagnetic fields are treated as classical fields, but their modes are not quantified - they are just like classical physics, with some subtleties thrown in for good measure. if (psi) satisfies the dirac equation, then each 'p_i' that is satisfied by the qe

Tripadvisor AI summaries give glowing reviews to dangerous hotels

https://images.euronews.com/articles/stories/09/82/40/75/1536x864_cmsv2_f09fd35e-7a0b-55ef-95cf-989efa6b2389-9824075.jpg
Tripadvisor's AI summaries may not accurately reflect guest reviews, with some hotels receiving glowing reviews despite serious safety concerns. Users are advised to scroll past AI summaries and read guest reviews, particularly one-star ratings, to ensure a safe stay.

Apocketlypse

https://0dd.company/media/uploaded_content/p1.gif
The user created APOCKETLYPSE, a digital creature that destroys humanity, inspired by Digimon and apocalyptic themes. They used the uxn programming system, a bytecode-based system, to create the project, which was a fun and challenging experience.

A gender-swap EarthBound for my daughter (2025)

https://tommy.reddad.net/post/2025-12-04-coilsnake/eb.png
User created a gender-swapped version of EarthBound using CoilSnake, replacing Ness sprites and text with feminine elements. The project was surprisingly easy and allowed for customization, avoiding unwanted content found in some pre-made ROM hacks.

Ford rehires human engineers after AI fails to match quality checks

https://ichef.bbci.co.uk/news/480/cpsprodpb/ad26/live/e5db0a70-73ad-11f1-9da1-db101e3ae6ed.jpg.webp
Ford rehired over 300 veteran quality inspectors after AI failed to meet expectations in quality checks. The company now trains AI systems with the expertise of these experienced technicians to improve product quality.

Reducing Assumptions, Exploding Your Code

The user discusses the trade-off between a simple, elegant script and one that handles real-world imperfections and user input validation. They explore alternative failure handling models in Rye, a language that treats failure as a normal value, blending with the language's faculties.

Lean Software Scaling Laws

https://gwern.net/static/img/logo/logo-whitebg-large-border.png
Researchers aim to empirically measure the scaling of coding LLM perplexity over codebase size to estimate the predictability of programming languages and their scaling laws. This study will help identify which languages, like Lean, are more predictable at large scales and may eventually work better with LLMs, potentially leading to improved global cybersecurity.

The full stack of terminals explained

https://avatars.githubusercontent.com/u/960133?v=4
The article covers the full stack of terminal knowledge, from vocabulary to implementation, explaining the relationships between Terminal, Shell, TTY, Console, and Line Discipline, and how they fit together. It also provides a step-by-step guide to building a TUI app, including terminal mode settings, input processing, screen control, terminal size management, and buffering, using Node.js as ...

Scientist who cleaned space toilet on work now leading Mars exploration

https://ichef.bbci.co.uk/news/480/cpsprodpb/10a8/live/24ab1620-76e0-11f1-a225-9d9f040cb041.png.webp
Claire Parfitt, a 42-year-old engineer, leads a team at the European Space Agency planning future Mars missions. She credits her early work experience at the National Space Centre in Leicester with inspiring her space career.

CoCom regulations and GPS receivers for balloons and cubesats (2016)

https://space.stackexchange.com/Content/Sites/space/Img/apple-touch-icon@2.png?v=bb39c00dba34
GPS receivers can be used at high altitudes and speeds without restrictions, but manufacturers must follow export control regulations. The current rule is that GPS receivers capable of providing navigation information at speeds greater than 600 m/s require a special license.

Show your hands honor for the power they bring you

https://aresluna.org/images/show-your-hands-honor/ogimage.png
The user discussed how fingers can type faster than expected due to overlapping, a capability of hands and brains to treat fingers independently, and how this is often overlooked in modern interfaces. The user emphasized the importance of designing interfaces that respect the speed of fingers, including using buffering, debouncing, and loading states to make interactions feel fast and responsive.

Returning to Zig after losing trust in Rust's governance

The author has revisited Zig after previously switching to Rust due to its instability and immature ecosystem. They now appreciate Zig's simplicity and balance between safety and usability.

Ancient Coins: What About Spartan Coins?

https://coinweek.com/wp-content/uploads/2018/09/spartan_coin.jpg
Spartans avoided wealth accumulation, using iron money and issuing rare coins post-power decline, notably under kings Areus and Cleomenes. Their coinage, influenced by Macedonian/Roman designs, remains scarce and valuable, reflecting Sparta's unique economic and political history.

Beeg float library, a Rust port of Fabrice Bellard's libbf

https://opengraph.githubassets.com/9419671b6b7aa1cf30c5fa950e9f3233f7a793d10d74985b80bb8ed09c3a0cd0/lifthrasiir/libbeef
libbeef is a Rust library for arbitrary-precision floating-point arithmetic that implements IEEE 754 semantics and is faster than num-bigint and comparable to GMP/MPFR. It is pure Rust, no_std ready, and has a small binary footprint, making it a good choice for license-sensitive projects.

The Preemptive Draw and Preemptive Grip in the Cash-in-Transit Sector

https://gutsgatesguards.wordpress.com/wp-content/uploads/2026/06/armed-and-ready.png?w=763
The user discusses the "preemptive draw" and "preemptive grip" tactics used by cash-in-transit employees, where they draw or grip their firearms without a specific threat. The user researched the history of this tactic, finding it dates back over 100 years and has been practiced by various companies and in different countries, including the US and Canada.

Returning to Zig

The author has revisited Zig after previously switching to Rust due to its instability and immature ecosystem. They now appreciate Zig's simplicity and balance between safety and usability.

Spain's cadastre API is SOAP from 2003, so I built a JSON wrapper (+MCP)

Predio es un servicio que proporciona datos catastrales españoles estructurados y predecibles en formato JSON, sin necesidad de SOAP/XML. Puedes autenticarte con una cabecera x-api-key y pagar por informe o por uso, con precios legibles por máquina.

Show your hands honor for the power they bring you

https://aresluna.org/images/show-your-hands-honor/ogimage.png
The user discussed how fingers can type faster than expected due to overlapping, a capability of hands and brains to treat fingers independently, and how this is often overlooked in modern interfaces. The user emphasized the importance of designing interfaces that respect the speed of fingers, including using buffering, debouncing, and loading states to make interactions feel fast and responsive.

Show HN: I trained a language model that thinks the capital of Japan is Paris

https://hamiltonianresearch.xyz/blog/og-card.png
The author built a language model called DIMBA that combines Mamba-2 and diffusion language models, achieving context efficiency and parallel generation. The model has limitations, including self-judgment failure and repetition, but shows promise with a dial for adjusting diffusion steps and candidate answers.

Neoengineers

The term neoengineer represents individuals who respect and prioritize the craft of engineering, focusing on effective problem-solving and skill-building. Adopting the identity of an effective engineer helps individuals make better choices and improve their skills, regardless of their current level of expertise.

C programmers commit fresh crimes against readability

https://image.theregister.com/5266854.jpg?imageId=5266854&panox=0.00&panoy=0.00&panow=100.00&panoh=100.00&heightx=0.00&heighty=0.00&heightw=100.00&heighth=100.00&width=960&height=432&format=webp&format=jpg
The 2025 IOCCC had 23 winning entries, including three winners with three entries each, and featured a unique use case in software preservation. Adrian Cable's Subleq computer was a standout, emulating a One Instruction Set Computer for easy preservation.

Backon – Python retry (zero deps, circuit breaker, async native)

https://raw.githubusercontent.com/Llucs/backon/main/assets/circle_logo.svg
Backon is a Python library for retry with exponential backoff, providing APIs for sync and async code. It supports decorators, functions, and context managers for retrying code with customizable wait strategies and stop conditions.

The Backstory of Jiki

https://jiki.io/static/content/images/blog/the-backstory-of-jiki-cc2a2cfc0d19.webp
Jiki is a beginner-focused coding platform that teaches programming through hands-on projects, using simplified JavaScript/Python interpreters and multilingual support to make learning accessible and engaging. Built on the belief that coding fosters problem-solving skills, it offers a freemium model to ensure affordability and accessibility for all.

The Strange Locomotion of Spirocuta

Wikipedia says they're Spirocuta. Bizarre to watch. It's like they move by "pouring" themselves into a new location.