I am trying to get one of the offline routing services to work on Marble in Linux, but I'm getting nowhere with any of them.

I just want something that will plan a driving route and show turn by turn directions without needing to be connected to the internet. I've seen screenshots of Marble doing this so I know it's possible, but I need either someone who can reach out to instruct me, or direct me to a setup guide to help getting it working.

Thanks.

Turn-By-Turn routing was formerly supported for the OSRM-plugin. Unfortunately the backend had changed and the plugin never got adjusted.