ActivityPub Server in a Single PHP File (via) Terence Eden: “Any computer program can be designed to run from a single file if you architect it wrong enough!”
I love this as a clear, easy-to-follow example of the core implementation details of the ActivityPub protocol—and a reminder that often a single PHP file is all you need.
Recent articles
- Highlights from my appearance on the Data Renegades podcast with CL Kao and Dori Wilson - 26th November 2025
- Claude Opus 4.5, and why evaluating new LLMs is increasingly difficult - 24th November 2025
- sqlite-utils 4.0a1 has several (minor) backwards incompatible changes - 24th November 2025