Simon Willison’s Weblog

Inside .git. This single diagram filled in all sorts of gaps in my mental model of how git actually works under the hood.

Posted 25th January 2024 at 2:59 pm

Recent articles

ChatGPT agent's user-agent - 4th August 2025
The ChatGPT sharing dialog demonstrates how difficult it is to design privacy preferences - 3rd August 2025
Reverse engineering some updates to Claude - 31st July 2025

git 50 julia-evans 27

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