Thanks for sharing, will check it out.
So far my solution was running rclone.cron every minute with checking if its already running and then checking if upload folder contains any files ( that are at least 15 minutes "old" ... prevention not to upload some partial files eg while other apps are still copying )
if pidof -o %PPID -x "rclone-cron.sh"; then
if find /storage/media-local/* -type f -mmin +15 | read
rclone move ....