After some finaggling I managed to compile it (here's the nix file I used to get the dependencies). It's looking basic but actually promising! Here are some screenshots (sorry for potato quality, it's the only one Lemmy allows me to upload at for some reason):

The search seems quite nice, it seems to search by names but also allows to search for (some?) OSM tags, e.g. amenity:drinking_water shows up water fountains around you. I'm actually annoyed that other apps don't allow you to do so this easily.

The navigation also seems to work-ish, which is surprising for such a young app. The only remaining things before it's really useful is downloadable maps and offline routing.