A word of warning you should only sync a remote database into a local database if you have permission to do so within your organisation's policies. I'm syncing during early phases of development where ...

Abstract: By integrating a nearly infinite number of reconfigurable elements into a finite space, a spatially continuous array aperture is formed for holographic multiple-input multiple-output (HMIMO) ...

Use your cloud storage like a local folder. Keep your files private on any cloud provider with crypt remotes. Don't give up features or comfort just because it runs on a phone.