Right, good clarification. Just out of curiosity, would the metadata needed for synchronisation of files reveal anything about the files publicly, similar to the case of DMs on Nostr?
Discussion
I guess relays could share with others if you updated your tree, so it could be similar.
The time it takes to turn your OS into a tree is far too long though lol… maybe in the future when consumer hardware is faster, then it may likely be possible.