Now that the new release of MOTIS with translation support has been deployed for Transitous, I implemented support for passing the language of user's locale(s) to the API.
This shows an itinerary rendered in Japanese and in the second example with romanized names (this relies on translation.txt being present in the corresponding GTFS feed data, though).

#transitous #gnomemaps #mapstodon #PublicTransit #localization

(I cheated a bit and manually set the language parameter hard-coded in the first screenshot, as the complete list of system locales aren't propagated into the Flatpak sandbox when running the application inside GNOME Builder. Thus the rest of the UI strings being in English in this example).