Translation of the app & name of the app

You've already expressed it in https://github.com/a-b-street/ltn/issues/17 but I don't think you created a independent issue since. LTN is between two worlds: I think it is currently used by a few somewhat-experts but the tool can or at least should also be used by non-experts. And a barrier for them could be the language / lack of translation.
I don't think the effort is that big on the tech side. Since we're a few frenchmen users (rouelibre1, arhzel, denis, me), we could help you translate the tool quickly.

Another related topic is that the name LTN is not really good marketing / SEO wise 😅. A renaming to something like "Serene streets" (easy to write / pronounce / remember / translate / but not too common) would probably help when communicating about the tool. [There's also the question of living under the umbrella of A/B street git project.]