LucidLink is a service which work in conjunction with the LucidLink app. 

The service coordinates and distributes metadata from your files stored in cloud object storage (such as Amazon S3, Microsoft Azure, Google storage, Backblaze B2 etc.). The app inserts this metadata as a local file system within the OS.

Whatever data is contained within the cloud object storage in the global namespace, shows up “virtually” here as a locally stored file. When the application opens the file, the data from that file is streamed directly from the object bucket to the device.