FWIW, I looked into it and apparently the "online search" functionality gets way more hits when searching for house numbers. That search must use nominatim or p

FWIW, I looked into it and apparently the "online search" functionality gets way more hits when searching for house numbers. That search must use nominatim or pelias as the backend. You can find it by hitting the search button, going to the categories tab, then scrolling to the bottom of that tab.