Simon Willison’s Weblog

Why Tamarin instead of... Justification for Tamarin in Mozilla over Mono and the JVM. It mainly comes down to license compatibility and overall size.

Posted 9th August 2007 at 12:43 pm

Recent articles

I ported JustHTML from Python to JavaScript with Codex CLI and GPT-5.2 in 4.5 hours - 15th December 2025
JustHTML is a fascinating example of vibe engineering in action - 14th December 2025
OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI - 12th December 2025

java 89 john-resig 32 jvm 4 mono 8 mozilla 113 open-source 278 tamarin 6

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