Repository with VR2Gather submodule that stores native binary DLLs.
The package itself is in the subdirectory nl.cwi.dis.vr2gather.nativelibraries.
Add to Unity by using Package Manager -> Add Git URL and then using URL git+https://github.com/cwi-dis/VR2G-nativeLibraries?path=/nl.cwi.dis.vr2gather.nativelibraries.
There is a script in .build tht may help collecting the DLLs to package for Windows.