Try the adsb-receiver script to setup an N1.
https://www.adsbreceiver.net/
It is likely to work the easiest for you.
You may need to configure dump1090 afterwards for --net-only mode.
@wiedehopf also has a setup that may work.
I was hoping they would have released an armbian version for the N1 by now. Maybe in the near future. I am not sure how close Armbian is to Ubuntu. I may have time to give it a try this weekend. I should have time by the end of the month.