Kurviger 1.12.3 (Beta)

It must have been published by now.

Each graph zip file contains inside one folder with offline routing data and you can extract it anywhere.

Unfortunately that is not currently supported by GraphHopper routing library.

Instead can use special region wide graphs, like Alps or DACH (Germany+Austria+Switzerland).

In the future I will see also BRouter offline routing to be integrated in Kurviger.
(which doesn’t have that limitation)