Observable notebook: San Francisco trees from Datasette. I used an Observable notebook to rebuild my San Francisco tree search demo against a Datasette API of a CSV of trees published by the SF Department of Public Works. The map updates live as you type a query, and every cell can be toggled to view the underlying source code.
Recent articles
- New prompt injection papers: Agents Rule of Two and The Attacker Moves Second - 2nd November 2025
 - Hacking the WiFi-enabled color screen GitHub Universe conference badge - 28th October 2025
 - Video: Building a tool to copy-paste share terminal sessions using Claude Code for web - 23rd October 2025