How would it work? Could you edit a file in Dropbox, and the edits would show up in Litewrite? How would the files be named?
I ask because you mention: “does it help you to have a bunch of notes named with IDs as filenames in JSON format on your Dropbox? The whole idea of remoteStorage is that you use remoteStorage-capable apps to open the notes and different apps can use the same data format.”
Someone [once] started writing a backup tool that downloads all your storage, and in theory that’s pretty easy to do.
A tool for backing up remoteStorage data to the local file system would be great to have! It’s certainly better than nothing, especially if two-way-sync conceptually makes no sense.