Simon Willison’s Weblog

15th April 2005 - Link Blog

Could Rails have been built without Ruby? Fascinating essay about how Ruby, like Lisp, lets you build new languages.

Posted 15th April 2005 at 5:42 pm

Recent articles

Initial impressions of Claude Fable 5 - 9th June 2026
Running Python code in a sandbox with MicroPython and WASM - 6th June 2026
Claude Opus 4.8: "a modest but tangible improvement" - 28th May 2026

This is a link post by Simon Willison, posted on 15th April 2005.

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe