Once the initial setup is done, Navigate to the Application Manager page of your dashboard and search for emby.
Click icon to open the Access Info page and note down HTTP port and HTTPS port which will be used later.
Go back to your emby server's homepage and click the top-right icon.
Click Network under the Server section.
Enter HTTP port and HTTPS port in the Public HTTP port number and Public HTTPS port number field respectively and set Secure connection mode to Handled by reverse proxy. Then click Save button at the bottom.
To add your media files, navigate to Settings > Server > Library. Click New Library.
Set your preferred Content type, Display name etc. Click icon to add folder(s) to your library.
Type /storage in the folder field and tap the icon to list the contents of the folder. Then select your preferred folder.