Hash-based duplicate detection

[Bowarc]

It would be nice to stop storing duplicate files.

[Bowarc]

But one question needs to be answered.

If
user1 stores a file,
user2 stores the same file (we don't store it and returns the id of user1's file cache
user1 deletes it's cache

Due to RGPD, we can't do reference-counting and delete only when there is no longer any owner.
But then, how do we explain to user2 that it's file has been deleted.

Ig anyone can delete any file soooo..

[Bowarc]

Or don't use any delete mechanism