ffplayout can play files from a folder, no playlists are required for this mode. This folder is monitored for changes, and when new files are added or deleted, this is registered and updated accordingly.
You just have to set mode: folder in the config under processing: and under storage: you have to enter the correct folder and the file extensions you want to scan for.
Additionally there is a shuffle mode, if this is activated, the files will be played randomly.
If shuffle mode is off, the clips will be played in sorted order.