Serving 200 million requests per day with a cgi-bin

Jake Gold tests how well 90s-era CGI works today, using a Go + SQLite CGI program running on a 16-thread AMD 3700X. Using CGI on modest hardware, it’s...

System Card: Claude Opus 4 & Claude Sonnet 4

Direct link to a PDF on Anthropic’s CDN because they don’t appear to have a landing page anywhere for this document. Anthropic’s system cards are alwa...

Announcing Toad—a universal UI for agentic coding in the terminal

Will McGugan is building his own take on a terminal coding assistant, in the style of Claude Code and Gemini CLI, using his Textual Python library as ...

AI and engineering tools - simonwillison.net

The tools on tools.simonwillison.net were mostly built using AI-assisted programming. This page lists 106 tools and their development history.

How to Have LLMs Write More Efficient Code using Optimal Data Structures

LLMs often generate O(n²) solutions when O(n) would suffice. Learn how to prompt for optimal data structures, avoid common performance pitfalls, and g...

repo-tokens-calculator

CLI token counter (Python + tiktoken + uv) with pretty summary

AI Company Research Tool

Web app for AI-driven company research

williamcallahan.com

Interactive personal site with beautiful terminal/code components & other dynamic content

aVenture.vc

Data-driven research platform for the VC ecosystem

Revoy

Make diesel semi trucks hybrid-electric

Kambio

Create your dream home, enabling a new era of modern living.

Loop

A smart photo frame to display all your family's favorite photo memories.