We've thought a fair amount about this. Our approach is the use sqlite on-device. Think about it more as a partially replicated db instead of a cache. Then loc

We've thought a fair amount about this. Our approach is the use sqlite on-device. Think about it more as a partially replicated db instead of a cache. Then locally available devices can compare changelogs and sync only the delta. No need for a checksum, since you can use monetonically increasing version numbers and CRDTs!