NO!
The cron container needs access to exactly same resources the app container has: files, database and config. as files within Nextclodu are not only the objects in the file system but they belong together with other metadata regarding this object in the DB - e.g. file versions, trashbin, sharing links etc. in other words it must be like a shadow of the original…
I’m sorry I really don’t get your problem - the other container doesn’t cost you anything, no more storage no more resources (compared to another container which costs additional storage).