Merge pull request #54 from tarmacalastair/patch-1

Update managing-users.md

Author: derneuere

docs/user-guide/managing-users.md

@@ -12,6 +12,17 @@ The user panel is at the bottom of the page above the worker logs.
 
 You can create, delete and manage users of your instance. You can change the scan path, password, name and e-mail of a given user.
 
+**Please note:**
+In LibrePhotos, the file system acts as the definitive source of photo organization. This means that folder structure dictates how photos are grouped and accessed within the application.
+
+To isolate users and their photo collections, create separate subfolders for each user on your host system (e.g., /data/user1, /data/user2, etc.). Then assign each user their respective subfolder as their scan directory in LibrePhotos. This ensures that users only see and interact with the photos in their designated directories.
+
+If multiple users are assigned the same scan directory (e.g., /data), all photos within that directory will be accessible to all users. LibrePhotos treats the directory as a global source of photos, meaning that every user linked to the directory will see all its contents.
+
+While the application saves metadata (e.g., tags, albums, facial recognition data) on a per-user basis in its database, it doesn’t inherently restrict access to the photos themselves. Access permissions must be managed through the file system / paths.
+
+The separation will also not keep the photos "private" as the admin of the host system can see all the images.
+
 ## User Registration
 
 Click on your Avatar → Admin Area to the user registration setting.