The `snapshots` folder contains symlinks to the blobs mentioned above. It is itself made up of several folders:
one per known revision!  
In the explanation above, we had initially fetched a file from the `aaaaaa` revision, before fetching a file from
the `bbbbbb` revision. In this situation, we would now have two folders in the `snapshots` folder: `aaaaaa`
and `bbbbbb`.  
In each of these folders, live symlinks that have the names of the files that we have downloaded. For example,