This started as a map of Ultimate Cheap Eats Berlin, based on this reddit thread
Later, it was expanded to include another map of "excellent and affordable meals with under 10 EUR", from this FB thread The list of locations is in input_under10.txt
Input files are named input_*.txt and when modified, they get geocoded automatically into a locations_*.geojson file via a github action, a Makefile and a python script.
The Makefile processes files that are updated only, thereby avoiding unnecessary geocoding calls.