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Switch map tiles from CartoDB positron to OpenStreetMap (no API key)

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CartoDB's positron basemap now renders an "API KEY REQUIRED" watermark.
Use tiles="OpenStreetMap" via a new MAP_TILES constant instead.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
Patrick Müller
2026-09-07 19:08:09 +02:00
parent caecc60c7b
commit e3bbd4d264
6 changed files with 43 additions and 11 deletions
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docs/changelog.md
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Notable changes to the app. Newest first.
## 2026-09-07 — map tiles switched to OpenStreetMap
`folium.Map(tiles="CartoDB positron")` began showing an "API KEY REQUIRED"
watermark (Carto moved its basemaps behind a key). Switched to
`tiles="OpenStreetMap"` via a new `MAP_TILES` constant — no key required. OSM
standard tiles are more colourful than positron was; `MAP_TILES` makes swapping
the provider a one-line change.
## 2026-09-07 — UI/UX pass
A round of usability improvements aimed at the non-technical user