Is it possible to sync files between devices which are rarely if ever turned on at the same time? I could run a caching relay but would prefer it to be “dumb.” That is, it shouldn’t have access to the files being synchronized.
I use two laptops alternately which are almost never both online or turned on at the same time. I would like to synchronize files between them. Some of these files are sensitive, including the password store. Technically, it’s encrypted but even the metadata (file structure for example) is rather revealing.
Is this use case covered or too exotic?