Simon Willison’s Weblog

How The Post is replacing Mapbox with open source solutions (via) Kevin Schaul describes the Washington Post’s emerging open source GIS stack: OpenMapTiles, Maputnik, PMTiles and Maplibre-gl-js.

Posted 17th February 2023 at 6:45 pm

Recent articles

OpenAI's new open weight (Apache 2) models are really good - 5th August 2025
ChatGPT agent's user-agent - 4th August 2025
The ChatGPT sharing dialog demonstrates how difficult it is to design privacy preferences - 3rd August 2025

maps 43 opensearch 3 openstreetmap 50 washington-post 9

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