Simon Willison’s Weblog

Infinite Monkey (via) Mihai Parparita's Infinite Mac lets you run classic MacOS emulators directly in your browser. Infinite Monkey is a new feature which taps into the OpenAI Computer Use and Claude Computer Use APIs using your own API keys and uses them to remote control the emulated Mac!

Here's what happened when I told OpenAI Computer Use to "Open MacPaint and draw a pelican riding a bicycle" - video sped up 3x.

# 9th July 2025, 7:07 pm / macos, mihai-parparita, ai, webassembly, generative-ai, llms, ai-agents, pelican-riding-a-bicycle

Mac OS 8 emulated in WebAssembly (via) Absolutely incredible project by Mihai Parparita. This is a full, working copy of Mac OS 8 (from 1997) running in your browser via WebAssembly—and it’s fully loaded with games and applications too. I played with Photoshop 3.0 and Civilization and there’s so much more on there to explore too—I finally get to try out HyperCard!

# 26th April 2022, 7:16 pm / computer-history, mac, mihai-parparita, webassembly

Gmail Greasemonkey API (via) The new version of Gmail includes API hooks for Greasemonkey script authors. The documentation is by Mark Pilgrim, author of Greasemonkey Hacks.

# 7th November 2007, 10:38 am / gmail, google, greasemonkey, javascript, mark-pilgrim, mihai-parparita