Yep @Colin, in that case sure.
And similarly in the case of amazondashbutton (Node-red on debian - libpcap/amazon dash).
So the answer to my first question is that no, it's not possible to run flows / nodes with root provileges.
You have to solve in the os side before all.
Or run another instance of node-red as root and then serve data e.g. through mqtt.
Is that correct?
Thanks
M