Simon Willison’s Weblog

Understanding a Protocol. Andrew’s latest notes on how ActivityPub and Mastodon work under the hood, based on his extensive development work building out Takahē.

Posted 6th December 2022 at 12:50 am

Recent articles

How Rob Pike got spammed with an AI slop "act of kindness" - 26th December 2025
A new way to extract detailed transcripts from Claude Code - 25th December 2025
Cooking with Claude - 23rd December 2025

andrew-godwin 19 mastodon 36 activitypub 10

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