They're all signed to the red bull company, not the teams anyways, which is why they can be swapped around so easily. DR could (technically) drive for RB without a problem.
Lehrerbildung für inklusiven Unterricht, evtl kleinere Klassengrößen (-> mehr Personal nötig), Inklusionsbetreuungskräfte, Infrastruktur, ...
They do all the actual searching with Google Maps, Lens and Images. None of that is Open Source, just the site to host the results and findings if I understood the article correctly.