Real-time map of Great Britain's rail network

Signalbox's live real-time map of Great Britain's rail network.

Road to Elm 1.0

Elm 0.19.2 improves compiler performance by reducing allocation during parsing, resulting in faster incremental builds. This update is part of a series of small releases leading to Elm 1.0, with further improvements and features to come.

How the U.S. Engineered Its Sovereignty

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The US achieved independence through engineering and innovation, but now faces structural and infrastructural fragility. A nation's independence requires both innovation and stewardship to maintain its critical tools and systems.

GPT-5.6 Sol Ultra will be in Codex

https://pbs.twimg.com/profile_images/1953339828738899968/WWQlU2RT_200x200.jpg
@haider1 Ultra will be in codex.

Introduction to Genomics for Engineers

https://learngenomics.dev/assets/images/1.1-DNA-f00aefafd1a3954fd1b496c2144a7bc0.jpg
Cells are the smallest units of life and contain a genome with instructions for producing proteins. The genome is encoded in DNA, which contains genes that are read and interpreted by cells to assemble various proteins.

Probably the best AI detector tool is ready

nginx/1.24.0 (Ubuntu)

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 Complete Homemade Juggling Beanbag Guide

https://www.joshuaclifton.com/juggle/Decor/mainTitleIcon.png
Users have donated to a juggling guide and expressed gratitude for the author's work and effort. They appreciate the detailed information and photos in the guide.

Building relationships with customers through support didn't turn out as hoped

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The author initially thought human support based on user experience would be a differentiator, but found it didn't work as expected. Most support requests were unsatisfactory to users and often annoyed them.

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.

C programmers commit fresh crimes against readability

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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.

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.

Behind the scenes with the Midjourney scanner [video]

My quest to see all of Tetris

https://antithesis.com/_astro/cover.BhC6APgc_Z14ViaI.webp
The author of a company called Antithesis had a side project to beat the game Tetris, which they had previously thought they had achieved but was later surpassed by teenage gamers. After several attempts and changes to their strategy, the author finally reached level 160 but got stuck, and it wasn't until they looked at their code and found a glitch that they realized they had been counting ...

Show HN: Homegames. An open-source game platform I've been making for 8 years

https://api.homegames.io/assets/15c42c63ac3059db66644668c53cac7e
Manage game assets right from the studio. Upload your own files or draw/record something in the studio. Publish games if you want to share them with the world. Or you can just keep them to yourself. Everything is GPLv3 from the platform code to the games to this website. You can read the code and fork it if you want to.

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.

Show HN: Paint the Earth on a live, interactive globe (collaborative art.)

Tattoo the earth, one pixel at a time.

Generate parametric, manufacturable 3D models in seconds

https://kyrall.com/assets/website/home/image-slider/Quad_frame_white.svg
Kyrall is a tool that generates parametric 3D models from text, sketches, and mesh inputs. It accelerates design-to-manufacturing workflows with intuitive high-level instructions.

Zuckerberg says AI agent development going slower than expected

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Trump Financial Disclosure Shows 21,000 Trades in 2025

https://www.advisorhub.com/wp-content/uploads/2025/04/Trump-600x390.jpg
President Donald Trump made over 21,000 securities trades in his first year back in office, with a total value of $600 million to $1.86 billion. Critics scrutinize his finances for potential improper profits from the presidency.

X402, a static blog monetization excercise

https://shtein.me/posts/x402-poc/browser-failed-paywall.png
Cloudflare has published an announcement couple of days ago about Monetization Gateway launch. This is revolutionary for many reasons. It removes the high entry barrier for monetization, it lets you have a very precise control over what you charge for and how low the payment can be. This literally can change how we use internet making advertisement economy internet runs on obsolete. It sounds ...

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 ...

"Software Engineering" Is Not Engineering

https://web.archive.org/web/20070628194618im_/http://geocities.com/tablizer/dream1.jpg
The author argues that software design lacks objective evaluation due to its flexibility and the absence of a physical reality to test against. They propose that software design is more like math, where models can be created with internal consistency but no direct connection to the physical world. The author suggests that the field of software design is not yet a science, but rather a ...

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.

The Age of Personalized Hardware Is Coming

https://geastack.com/og-cover.jpg
People are building their own software applications for personal use, and the gap between wanting something to exist and building it is shrinking. The software running on personal devices will become increasingly important as devices multiply, and more people should be able to write what runs on them.

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.

Mr. Baby Paint and accidentally discovering a new cellular automata

https://tekstien-marginaalien-keskus.aalto.fi/residenssi/heikki/blog/004-december-2/mspaint.webp
The user created a drawing app called Mr. Baby Paint for toddlers to encourage creative play and designed it with a co-op approach for parents and toddlers to work together. The app features a simple interface, rewarding actions, and a flood fill based cellular automata that creates organic patterns when used in a specific way.

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.

Vacuum at the Page Level

https://boringsql.com/og-images/vacuum-at-the-page-level-og.jpg
In HOT Updates in Postgres we covered page pruning clean up HOT chains, an elegant shortcut where PostgreSQL reclaims dead tuple space during ordinary reads. All that without waiting for any background process. But pruning is exactly that: a shortcut. It only works within a single page, and only for HOT-updated tuples. For everything else (cold updates that touch indexed columns, plain ...