GitBook - Modern Publishing, Simply taking your books from ideas to finished, polished books.
Mapbox - An open source mapping platform for custom designed maps. Our APIs and SDKs are the building blocks to integrate location into any mobile or web app.
MkDocs - Project documentation with Markdown.
QGIS - QGIS is a desktop geographic information system, or GIS.
Docusaurus - Easy to maintain open source documentation websites
OpenStreetMap - OpenStreetMap is a map of the world, created by people like you and free to use under an open license.