Thilo thankfully gave my server an DNS-Entry for the OGF-Domain, so instead of using the cryptic hostname from the previous diary entry you can now find the server at nominatim.opengeofiction.net, the port of the service hasn't changed (The server also provides routing information, that's why it is also reachable as route.opengeofiction.net).
Thilo also implemented the service on the main-page, so the search-bar in the left upper corner doesn't redirect you to the Overpass Turbo anymore, and rather should find exactly the stuff you are looking for.
Instead of writing your questions in the comments i would prefer it if you directly write them on the talk-page of the wiki-article (You can comment here anyway, but i won't comment on questions here, because diary entrys get out of people's focus really quick and are not searchable at all.).
Kind regards and Happy searching