Japan's trains are great. Why is booking one so hard?
Booking a train in Japan can mean navigating regional platforms, fare rules, and company boundaries. What does that say about software and Conway's Law?
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Hacker News
The latest from Hacker News, part of our Tech News coverage. Updated automatically as new posts are published.
Pac-Man's Siren Call
AI summary A Google employee created a Pac-Man doodle for its 30th anniversary using HTML and CSS, including sound via Flash and some bugs.
The AI cost of JavaScript frameworks
AI summary The article discusses the lack of evidence in web development decisions, focusing on AI and JavaScript frameworks.
Brazilian Court Sanctions Lawyers for Prompt Injection in Court Filing
Two lawyers hid a white-on-white instruction inside a court filing telling the AI to go easy on their case. The court's AI caught it. The fine was $16,000.
OTape
AI summary oTAPE is an open file format for digital cassettes, containing audio, labels, and artwork in one self-contained file.
Hermantown approves controversial Google Data Center during late night meeting
AI summary Hermantown City Council approved a Google data center project despite local opposition during a late-night meeting.
Leaking Secrets from Air-Gap Computers by Spelling Radio Signals from RAM (2024)
AI summary The article discusses a method to leak secrets from air-gap computers by using radio signals from RAM, according to a 2024 report.
Show HN: BBRouter – Ben Eater's 8-bit computer, simulated on 3D breadboards
AI summary BBRouter allows users to connect to Ben Eater's 8-bit computer simulation via an MCP server.
Constructing a Quine from Kleene's Second Recursion Theorem
AI summary The article explores constructing a Quine using Kleene's Second Recursion Theorem and discusses formalization benefits.
When electric cars were for women
Early carmakers decided women wanted cars that were quiet, clean, and easy to start
Altoids Project
AI summary A family built a robot project, faced challenges with a display pinout, and later miniaturized it into an Altoids tin.
Memdoor: A team of 5 Qwen3.8-27B models beats Fable 5 on LiveCodeBench Hard
AI summary A multi-agent system using five Qwen3.8-27B models outperformed Fable 5 on LiveCodeBench Hard tasks.
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An Italian farmer found some unknown seeds in his attic and planted them
AI summary An Italian farmer found old seeds in his attic, which grew into unusual wheat with multiple ears and colorful kernels.
AI text watermarking and quality loss
AI summary Debate continues over whether AI text watermarking affects output quality, with concerns about clarity and coherence.
Anthropic takes steps to block Claude from reverse-engineering video games
The restrictions are so broad that they're even hurting legitimate game developers and preventing basic troubleshooting tasks.
Distributed Proofreaders
AI summary Distributed Proofreaders converts public domain books into e-books using volunteer proofreaders and a web-based system.
With 86% of the words, you might understand only 38% of an anime's lines
AI summary An anime's word coverage doesn't match line comprehension due to line length and grammar focus.
Common Desktop Environment available now as open-source
Download CDE - Common Desktop Environment for free. The Common Desktop Environment, the classic UNIX desktop. The Common Desktop Environment was created by a collaboration of…
Surviving "The Graduate"
https://archive.ph/Eqn1F
HackerTube: YouTube built from videos recommended by HN
AI summary A user created a YouTube clone called HackerTube using videos recommended on Hacker News.
Anthropic blocks users for anything touching training larger models
Shame on @DarioAmodei / Anthropic. I never distilled Claude—rollouts came from a strong open-source model; Claude just helped submit jobs and run analysis. Still got tagged for…
Show HN: NES Contra (1987) port (ASM –> C and then C –> WebAssembly)
Based on vermiceli's annotated disassembly of Contra: https://github.com/vermiceli/nes-contra-us. Thanks for the great work.I ported it in two steps. First to C: the game logic…
TCP Use-After-Free: CVE-2026-98432 / CVSS 9.8
AI summary A critical use-after-free vulnerability (CVE-2026-98432) in Linux's TCP handshake was fixed in several kernel versions, but some distributions remain vulnerable.
The Duty of a Scholar
There was a joke at the time that although the National Security Agency had opened up in recent years and started taking their defensive role more seriously, the one aspect of…
GPT-5.6 Sol can beat Factorio on peaceful mode
AI summary Sol beat Factorio on peaceful mode using a Python library to interact with the game.
It's the Memory Latency, Stupid
AI summary CPU usage can appear at 100% but not be fully utilized due to memory latency. CPUs use caches to mitigate slow memory access.
I post trained a model on Demoscenes
AI summary An individual explored demoscenes and used Dwitter.net to remix JavaScript demos, analyzing how small code changes affect visual effects.
William Nordhaus, Nobel-winning climate economist, dies at 85
AI summary William Nordhaus, Nobel-winning climate economist, died at 85 after battling glioblastoma.