Currently the NuGet package for .NET Core does only provide the interop assemblies for linux-x64. I think the managed part which is already there should work unter arm linux but a way to compile the interop part is required like it is for x86/x64 by the build script compile-interop-assembly-release.sh

Do you see a way to cross compile that part for linux arm?

This feature would allow development of new projects in the IoT world even porting existing applications.