Hi mrechte,
Is it possible to configure (or hack the code) to not include sub-folders automatically ?
This is not possible at the moment.
Rune makes use of MPD built-in features.
From
https://www.musicpd.org/doc/protocol/queue.html
The current playlist
add {URI}
Adds the file URI to the playlist (directories add recursively). URI can also be a single file.
Frank