I'm looking to set up a homelab pc where it will have about 10TB of storage. I also have a backblaze B2 bucket I will use for cloud storage. I would like to use the homelab PC as a sort of cache drive where when I am at home I can use it, and when I am away I can connect to my backblaze b2 bucket directly from my laptop. For example, I could open a word doc, make a few changes, and it would sync automatically to my cloud and NAS. However the cloud would have more storage so I envision a scenario where my laptop would run out of space so I would keep some files "cloud only" and they would be on the NAS when at home or in the backblaze cloud when away. However, some files I might want to only keep in the cloud and not on my laptop or NAS. Is this possible?