Show HN: Algorithmically Finding the Longest Line of Sight on Earth

https://alltheviews.world/longest_line_1.webp
Researchers used CacheTVS to find the longest line of sight on Earth, which groups around peaks and ridges. Notable views include Colombia's Pico Cristobal and Russia's Mount Elbrus to Turkey's Pontic Mountains.

Art of Roads in Games

https://sandboxspirit.com/_astro/roads_cover.Bk50jKgP_ZVBIb6.webp
The author is fascinated by intricate patterns in nature and human-made structures, particularly road networks. They've analyzed road patterns in games and real life, discovering that Bezier curves used in games fail to accurately represent real roads due to their inability to preserve shape and curvature when offset.

Vouch

https://opengraph.githubassets.com/549a2cb017b7dd8fd806af8854f1f756f5eb0bcb5639e1e0eb3f1ef124867b2d/mitchellh/vouch
The Vouch project is a trust management system that allows projects to configure and enforce access control based on user vouching and denouncing, with a web of trust across projects. It uses a flat file format called Trustdown (.td) and integrates with GitHub via GitHub Actions and a CLI, allowing projects to implement their own policies for vouching and denouncing users.

Offpunk 3.0

https://ploum.net/files/decvt220.jpg
Offpunk 3.0 is a command-line browser for Web, Gemini, and Gopher that allows offline work. It's now a cooperative effort with many contributors and new features.

LispE: Lisp Interpreter with Pattern Programming and Lazy Evaluation

https://opengraph.githubassets.com/a5a88866f7d8cb3210fb2db297692e18611fe5006ae62ad132a316b5b65407bf/naver/lispe
LispE is a compact, multi-platform language combining functional and array language features. It provides a simple yet versatile formalism for combining programming trends.

Tessellation Kit (2016)

Kaleidoscopic drawing

Show HN: A custom font that displays Cistercian numerals using ligatures

https://bobbiec.github.io/cistercian-font-preview.png
On this page, numbers are automatically rendered as medieval Cistercian numerals using a custom font (learn more).Try copy-pasting the symbols or Ctrl/Cmd-F the numbers below! A project by Bobbie Chen, based on Chris Heilmann's generator. Learn more about the custom font in the blog post . See all web demos.
http://books.google.com/books/content?id=bMGFEAAAQBAJ&printsec=frontcover&img=1&zoom=1&edge=curl&source=gbs_api
Here are the summaries in 2 concise English sentences each, not exceeding 200 characters:

Roman industrial hub discovered on banks of River Wear

https://i3.ytimg.com/vi/LtqaAAtBsfM/hqdefault.jpg
Our experts have helped uncover evidence of a Roman industrial hub on the banks of the River Wear, at Offerton, near Sunderland. Excavations discovered over 800 whetstones (stone bars used to sharpen bladed tools and weapons), and 11 stone anchors. The dig was led by the Vedra Hylton Community Association and supported by our Department of Archaeology. The discovery is the largest known ...

Show HN: I created a Mars colony RPG based on Kim Stanley Robinson’s Mars books

A Mars colony game about surviving and building on the Red Planet.

Apple XNU: Clutch Scheduler

https://opengraph.githubassets.com/486aba6d9f44dc1762cc019269d856370cc4671bcb24a49b612b5ed62a93a68c/apple-oss-distributions/xnu
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Ask HN: What are you working on? (February 2026)

Users are working on various projects including a color palette tool, a language learning app, a daily puzzles website, an AI-based time tracker, and more. They are also experimenting with new technologies such as auxetic geometries, data visualization, and AI-powered code review tools, and seeking feedback and advice from others in the community.
https://eclecticlight.co/wp-content/uploads/2025/12/aitrap5.jpg?w=518
Google's AI is again offering links to malicious scripts, this time delivering AMOS stealers to Macs via forged Apple sites and Medium articles. Users should be cautious when clicking on promoted links and verify the authenticity of websites before running Terminal commands.

Quartz crystals

https://www.pa3fwm.nl/technotes/tn13fig1.png
Quartz crystals have been used in radio technology since the 1920s for stable oscillators and signal filtering. They work by vibrating at a specific frequency due to the piezo-electric effect and can be used in series or parallel resonance.

Custom Firmware for the MZ-RH1 – Ready for Testing

https://sir68k.re/posts/rh1-firmware-available/images/cfw.jpeg
A custom firmware for the Sony MZ-RH1 has been released with features like track title display and basic track control options. The firmware is open-source and includes a WebUSB-based installer to minimize the risk of corruption during flashing.

Reverse Engineering the Prom for the SGI O2

The author reverse engineered the Silicon Graphics O2's PROM firmware to make it modifiable. They built a decompiler that produces bit-identical assembly source files.

Experts Have World Models. LLMs Have Word Models

https://substackcdn.com/image/fetch/$s_!Pr4U!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdd11f244-ccd7-4cdf-83ef-75c41099e276_1600x1220.png
Experts see vulnerabilities in AI models that others don't because they simulate how the model will be interpreted by others in an adversarial environment. The key difference is that experts model the world and its agents, while AI models are trained to produce coherent output without considering how others will react to it.

The Little Bool of Doom (2025)

https://blog.svgames.pl/image/doombool-assembly.png
The user encountered a compilation error with the chocolate-doom package due to a clash between a custom boolean type and the C23 standard's bool keyword. The issue was caused by undefined behavior when reading an invalid _Bool value, which was resolved by changing the code to use the C99 standard.

GitHub Agentic Workflows

GitHub Agentic Workflows deliver automated repository improvements via simple markdown files, with security-first design principles and controlled boundaries. It uses AI agents to analyze issues, generate reports, and maintain repositories, but requires careful human supervision and caution.

Roundcube Webmail: SVG feImage bypasses image blocking to track email opens

https://nullcathedral.com/og-image.png
Roundcube's sanitizer allowed external resources on <feImage> due to a bug, enabling attackers to track email opens. Fixed in 1.5.13 and 1.6.13, the issue was caused by a mismatch in attribute handling.

AI makes the easy part easier and the hard part harder

https://www.blundergoat.com/_next/image?url=%2F_next%2Fstatic%2Fmedia%2Favatar.085f626f.jpg&w=3840&q=75
A friend's panel discussed how engineering orgs can better support engineers, highlighting issues with sacrificing quality, sprinting to deliver, and overhyping AI's benefits. Using AI as an investigation tool, not a solution provider, is crucial to avoid wasting time and ensuring responsible code ownership.

Running Your Own As: BGP on FreeBSD with FRR, GRE Tunnels, and Policy Routing

https://blog.hofstede.it/images/2026-02-08-running-your-own-as-bgp-freebsd.png
Running a personal Autonomous System (AS) on the public internet is possible with sponsoring LIRs and FreeBSD routing tools. This setup provides provider-independent addressing, real BGP peering, and a deeper understanding of internet routing.

Show HN: Slack CLI for Agents

https://opengraph.githubassets.com/096d21cef9cf72b23063bd7df29cb624f9fa03db84ad9e48e62d11081527355a/stablyai/agent-slack
This Slack API provides token-efficient output and zero-config auth for LLMs. It offers various commands for fetching messages, threads, users, and files from Slack.

Claude’s C Compiler vs. GCC

https://miro.medium.com/v2/resize:fit:640/format:webp/1*YummodV7MDImgo0ywwmxlA.png
Anthropic's AI-built C compiler, CCC, can correctly compile the Linux kernel and produce functionally correct SQLite output, but its output is very slow due to poor register allocation. CCC's limitations make it unsuitable for production use, but it is a remarkable achievement demonstrating the potential of AI in software development.

Dave Farber has died

https://lists.nanog.org/static/hyperkitty/img/logo.png
Dave Farber, known as the "grandfather of the Internet," passed away at 91. He was a renowned professor, technologist, and mentor who taught at Keio University and co-directed the Keio Cyber Civilization Research Center.

Toma (YC W24) Is Hiring Founding Engineers

Toma is building an AI platform for underserved industries, bridging the gap between innovation and real-world use. We're hiring a Founding Engineer to drive impact and build AI-powered features for the automotive industry.

Exploiting signed bootloaders to circumvent UEFI Secure Boot (2019)

https://habrastorage.org/r/w1560/webt/8v/fh/ut/8vfhut0fieoez9092xlirmoxndk.png
The article discusses how to create a bootable USB flash drive that can boot various computer recovery software without disabling Secure Boot on a PC, using a signed bootloader and modifying existing code to achieve this. The author created two disks, Super UEFIinSecureBoot Disk and Silent UEFIinSecureBoot Disk, which can launch any operating system or .efi file, even with untrusted or ...

A GTA modder has got the 1997 original working on modern PCs and Steam Deck

https://gtaforums.com/uploads/monthly_2021_04/Harold.thumb.png.661c82d13452f12335b21febfb72a293.png
Ready2Play Complete package to play easy and without installation on modern Windows systems. Just extract to desired location and start the launcher to play, Enjoy! Features - Improved compatibility and performance - GTA + London + 1961 (Windows version) - Supports Steam version (Install detectio...

Curating a Show on My Ineffable Mother, Ursula K. Le Guin

https://hyperallergic.com/content/images/size/w160/2026/01/theo-leguin.jpeg
The writer's daughter curated an exhibition about her mother, Ursula K. Le Guin, featuring her first typewriter and allowing visitors to type on it. The exhibition is a tribute to her mother's writing and legacy, showcasing her willingness to learn and change.

RFC 3092 – Etymology of “Foo” (2001)

Foo is a mysterious second world war product, gifted with bitter omniscience and sarcasm. 'foobar' is an acronym for ftp operation over big address records [rfc1639] - from the us military in world-war-ii. it is sometimes shortened to "fouled up...&#35; by hackers. the term was first used in the