Simon Willison’s Weblog

24th January 2009 - Link Blog

google-mobwrite. Neil Fraser’s terrifyingly clever differential synchronization algorithm (for SubEthaEdit-style collaboration over the web) is now available as an open source Python and JavaScript library.

Posted 24th January 2009 at 11:55 pm

Recent articles

One-shotting a Raccoon Heist game using Claude Fable 5 - 5th August 2026
New release of LLM adds support for reasoning traces, OpenAI Responses, server-side tools, and smarter logging - 4th August 2026
Stateless MCP has recaptured my interest (and inspired mcp-explorer and datasette-mcp) - 31st July 2026

This is a link post by Simon Willison, posted on 24th January 2009.

collaboration 9 google 414 javascript 760 mobwrite 2 neil-fraser 8 open-source 313 python 1,272 subethaedit 2

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