Hacker News Daily — July 12, 2026
30 stories · July 12, 2026
In this issue
- 1
What xAI's Grok build CLI sends to xAI: A wire-level analysis
gist.github.com · 378 points · Discussion
What xAI Grok Build CLI actually sends to xAI - a wire-level analysis (grok 0.2.93) By @cereblab — Independent AI Safety Checker. Reproduce it yourself: github.com/cereblab/grok-build-exfil-repro A…
- 2
Old and new apps, via modern coding agents
terrytao.wordpress.com · 376 points · Discussion
I have been interested in machine-assisted ways to do and teach mathematics from as far back as 1999, when I started coding several applets in Java 1.0, both for my complex analysis and linear algebra…
- 3
Claude Code sends 33k tokens before reading the prompt; OpenCode sends 7k
systima.ai · 272 points · Discussion
This started based off of a hunch. We usually use OpenCode, but were 'forced' to use Claude Code for a while due to issues with Meridian. In that time, we saw the usage meter rise much, much more…
- 4
Vint Cerf, “father of the Internet”, is retiring
techcrunch.com · 266 points · Discussion
Vinton Cerf will step down from his role as Google’s chief internet evangelist next week, marking the conclusion of one of the most influential careers in technology history. While speaking via video…
- 5
Ghostel.el: Terminal emulator powered by libghostty
dakra.github.io · 247 points · Discussion
Table of Contents 1. Quick Start 1.1. Shell integration at a glance 1.2. Input modes at a glance 2. Requirements 3. Installation 3.1. MELPA 3.2. use-package with:vc (Emacs 30+) 3.3. use-package…
- 6
How to read more books
scotto.me · 205 points · Discussion
I’ve read roughly a book a week for a few years, and I can tell you it’s doable. I didn’t always read this much. When I started, I read fewer than ten volumes per year, but making it a goal made me…
- 7
I love LLMs, I hate hype
geohot.github.io · 189 points · Discussion
I think from this blog you may misunderestimate how absolutely giddy I am about AI. I did hacking from 2007-2014, after that my whole career has been devoted to AI. I love the progress. I’m so excited…
- 8
The shingles vaccine may reduce the risk of dementia
economist.com · 170 points · Discussion
https://archive.ph/PzPop
- 9
Don't you mean extinct?
fabiensanglard.net · 154 points · Discussion
Jul 10, 2026 Don't you mean extinct? In 1993, Jurassic Park came out and revolutionized the use of CGI in films [1]. To the public the experience was magic. But for some of the people in the movie…
- 10
Understanding the Odin programming language
odinbook.com · 132 points · Discussion
Do you want to learn the Odin Programming Language and demystify low-level programming? Then this book is for you. Read a sample or buy now Understanding the Odin Programming Language is a book that…
- 11
LARP – Revenue infrastructure for serious founders
larp.website · 80 points · Discussion
Read via the links — full text wasn’t available.
- 12
Theo de Raadt: "You've been smoking something mind altering" (2007)
marc.info · 68 points · Discussion
Read via the links — full text wasn’t available.
- 13
Automation Without Understanding
arxiv.org · 67 points · Discussion
View PDF HTML (experimental) Abstract: Two developments are unfolding at once: artificial intelligence systems have begun to produce genuine research-level mathematics, and the United States is…
- 14
Show HN: Shirei, cross-platform GUI framework in native Go
github.com · 66 points · Discussion
Shirei is a Cross-Platform GUI framework for Go. You get to write the UI using Go, not HTML and Javascript. Truely cross-platform: the same code base produces identical looking programs for MacOS,…
- 15
Against Usefulness
motivenotes.ai · 56 points · Discussion
Every useful company stands on rails that were once somebody’s stubbornly useless research. I invest in useful for a living. This essay is about the stage before useful, who works on it, and who pays…
- 16
Why write code in 2026
softwaredoug.com · 55 points · Discussion
It’s our job to build the software factory - not just the software. Software engineers maintain the assembly line allowing anyone to prompt for a change and ship immediately. We set up the…
- 17
Why study Diophantine equations?
hidden-phenomena.com · 53 points · Discussion
← back February 10, 2026 One of the central goals of number theory is to find integer solutions to polynomial equations -- this is called the study of Diophantine equations. This might seem a strange…
- 18
Can We Understand How Large Language Models Reason?
cacm.acm.org · 50 points · Discussion
Read via the links — full text wasn’t available.
- 19
Neocities: Create your own free website
neocities.org · 46 points · Discussion
Our mission: To make the web fun again by giving you back control of how you express yourself online. HTML editor, right in your browser No tools needed. With our easy-to-use HTML editor, you're ready…
- 20
Migrating a production AI agent to GPT-5.6: 2.2x faster, 27% cheaper
ploy.ai · 42 points · Discussion
As of today, Ploy’s agent runs on GPT-5.6 Sol, the flagship tier of the model family OpenAI released this morning. For months, we couldn’t find a model that challenges Claude Opus given our incredibly…
- 21
The power of collaboration: How we can reduce traffic congestion
research.google · 41 points · Discussion
Vehicle transportation underpins much of modern life, enabling the movement of goods and people, productivity, and economic growth. However, the costs are high: drivers spend an average of 2.6 years…
- 22
Tiny Emulators
floooh.github.io · 40 points · Discussion
Visual 6502 Remix Visual Z80 Remix KC Compact UI Amstrad CPC464 UI Amstrad CPC6128 UI ZX Spectrum 48k UI ZX Spectrum 128 UI Commodore VIC-20 UI Commodore C64 UI Acorn Atom UI LC-80 Robotron Z1013 UI…
- 23
I Learned to Read Again
substack.magazinenongrata.com · 37 points · Discussion
The new world is intent on inculcating short attention spans and insatiable dopamine cravings in its people. Reading has become more difficult and less common. In this piece, Sam Kahn —one of the…
- 24
Irish datacenters now guzzle 23% of the country's electricity
theregister.com · 35 points · Discussion
ON-PREM Consumption rose another 10% while restrictions on most new grid connections remained around Dublin Electricity used by datacenters in Ireland increased by 10 percent during 2025, despite an…
- 25
Deir El-Medina Strikes
en.wikipedia.org · 32 points · Discussion
Ancient artisans’ village in Deir el-Medina The Deir el-Medina strikes were a series of strikes by the artisans who worked on the tombs in the Egyptian Valley of the Kings, the most notable of which…
- 26
Croc: Securely transfer files and folders between two computers
github.com · 26 points · Discussion
This project’s future depends on community support. Become a sponsor today. About croc is a tool that allows any two computers to simply and securely transfer files and folders. AFAIK, croc is the…
- 27
The One-Step Trap (In AI Research)
incompleteideas.net · 26 points · Discussion
The One-Step Trap (in AI Research) Rich Sutton Written up for X on July 18, 2024 The one-step trap is the common mistake of thinking that all or most of an AI agent’s learned predictions can be…
- 28
Show HN: Nectar, a Rust-like React that compiles to WebAssembly
buildnectar.com · 22 points · Discussion
After a pretty rough gig experience, I wanted to remind myself that I was a vaguely capable developer. I had recently jumped on the Rust train and wanted a Rust equivalent of React that is more…
- 29
How to organize 3 acquired companies into one coherent website
littlelanguagemodels.com · 13 points · Discussion
Company A has acquired Company B, C, and D. How do we organize their sites, for multiple products with different audiences, while making it easy to find relevant product information and quickly…
- 30
Conway's Game of Life, in real life
lcamtuf.coredump.cx · 12 points · Discussion
Read via the links — full text wasn’t available.