#1852: routing, petrol, trees
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A practical guide to self-hosting your routing engine with GraphHopper and OSM data
https://www.graphhopper.com/blog/2022/06/27/host-your-own-worldwide-route-calculator-with-graphhopper/ -
This @datadista map shows the real-time prices at all Spanish gas stations
[ES]
https://especiales.datadista.com/interactivos/mapa-gasolineras-baratas-espana/#close -
A monumental trees crowdsourced world map with thousands of pictures, measurements, and location details of, many times, unknown trees from all species
https://www.monumentaltrees.com/en/map/world/
Raf