I don't like all the cutesy apps for the #Synology #NAS. Particularly the way each app's storage is somehow separate from the others _and_ they aren't segregated by user.
I really want just a networked file system. I can store my grandchild photos under "/myname/Pictures" and put my documents and spreadsheets under "/myname/Documents"; my .oga, .ogg, and .flac files can go under "/myname/Music" ... with permissions.
Then if I wanted to use their audio streaming app, once I logged in, it would know where my collection is, and would play only my music. Naturally, there would be a "/public" with subdirs for Music, Documents, Photos, etc. The apps would give the choice of showing / playing /public files or not doing so.
The default upload / download / display / play would of course be private (user account only). With a checkbox, the user could upload files to subdirs of /public, and view / play / download files from subdirs of /public.
(NOTE: there is a filesystem exposed to my file browser [in my case, I'm using Krusader and SMB4K], but it does not show the files available to the apps.)