What do Visa and Mastercard do? An intro to card networks

tautology.town is a blog that contains tautologies.

Understanding the recent DDoS attack against Read the Docs

A deep dive into the massive June 2026 DDoS attack on Read the Docs, the attack patterns we observed, and the mitigations and defenses we used to defend our infrastructure.

GNU Radio in the browser

Build and run GNU Radio flowgraphs in your browser — no install. A GRC-style SDR editor with hundreds of DSP blocks, live QT GUI plots and RTL-SDR support.

Generating the P3 Tiling

We accidentally built a synthetic cell factory

Building cells from scratch requires purpose-made materials. So we built the world's first synthetic cell manufacturing plant, right in SF.

How I advertise malicious software on Google Ads

A caller phones Radio Erywan. “Is it true that in Moscow, on Red Square, they give out cars?” “True. Not in Moscow, however, but in St. Petersburg. Not on Red Square, but on Revolution Square. Not cars, but bikes. And they don’t give them out, but steal them”. Edit: Through the apparent magic of Hacker News, my Google Ads account has been reinstated. ✨. Still no explanation of what triggered the suspension, but thank you to everyone who helped make it visible (and/or fixed).

Claude, change the “Add to Cart” button to blue

Make one button blue. Change nothing else. A short interactive comedy about agentic AI assistants that can never just do the thing.

Desert Ant Labs: local, fast models that run on device

We're building a frontier lab for on-device AI. Small, specialized models for audio, vision, and text, faster than the cloud and free.

AirPods 5

Shopify acquires Tailwind

We're joining Shopify to give Tailwind a stable long-term home where it will be actively maintained for the millions of people who depend on it.

Planet Labs' open satellite feed

Benchmarks & Tips for Big Data, Hadoop, AWS, Google Cloud, PostgreSQL, Spark, Python & More...

iPhone 18 Pro and iPhone 18 Pro Max

Procedural Graphs: Self-Evolving Execution Structures for LLM Agents

Yuxing Lu, Yicheng Chen, Shanchan Wu and Sercan Arik at Google, with Georgia Tech and Peking University, introduce the Procedural Graph, an explicit store of (p

Bespoke: A programming language for people who say please

Modern programming languages are full of violence, vulgar abbreviations, and naked imperatives. Bespoke is a statically typed alternative in which exceptions...

Why Emacs Consult async searches feel slow and how to speed them up

The consult Emacs package provides asynchronous search commands such as consult-fd, consult-find, consult-grep, consult-git-grep, and consult-ripgrep. For th...

Apple Watch Series 12

Qwen 3.8 follows GPT-5.5 Pro reasoning prefills

HN: https://news.ycombinator.com/edit?id=49630026. GitHub Gist: instantly share code, notes, and snippets.

iPhone Duo

iPhone Duo. The largest iPhone display ever. In a thin, foldable design. 48MP Dual Fusion camera system. A20 Pro chip. All-day battery life.

Show HN: Self-hosted company OS, Claude Code and Codex agents in departments

Your personal AI agent platform — self-hosted, BYO Claude/Codex subscription - OtoDock/oto-dock

GPT-6 Astra, looped transformers, and hidden reasoning

A Look at Recurrent Depth, Hidden Chains of Thought, and Recent Research on Looping Transformer Blocks