Persist cache between mountings / reboots

[Maxispark]

I'm looking to have ocamlfuse behave similarly to the Google Drive sync app on Windows where:

1. Cache persists locally when rebooting This is so that I don't have to redownload several gigabytes every time the Google Drive gets remounted
2. Updates with changes upon mounting This appears to be the case currently, but effectively it would apply to the persisted cache. i.e. it will only download files that have changed to update the locally persisted cache

[astrada]

If you need a full sync, you should use something like rclone or drive.

[philip-bl]

I want this too, but I don't want full sync.