There is nothing to do for a developer.
Just copy your favorite profiles into the BRouter folder 'profiles2' and start the app.
Select a profile from the list and bind this to a service mode (short, fast or both).
You have only 3 modes. If there is no special mode for you just select one you don't need so much.
E.g. there is no waterway mode, so select 'motorcar_*' for profile 'river.brf'.
And now start your routing with motorcar feature.