If I’m using this application, I’d likely only be using this on files in home and removable-media which are covered by those interfaces. I’m unlikely to want to delete duplicate files elsewhere in the filesystem. So based on that I’d -1 unless there’s some reason to justify deleting duplicate files outside those places?
-1 from me too. I would use a tool like this to clean up my own data, rather than the the whole file system. I think using the home and removable-media interfaces should be sufficient. So I would suggest that @Qiplex add the removable-media interface to their snap and request a store assertion to auto-connect it.