The Nano is fun and works great with bfgminer when the right driver is installed. I'm not sure if like in Minera you can run a 2nd Miner on the RPi with the wrt image.
That might work.
I can try this weekend and let you know.
I do have Nanos running ok with MultiMiner node as well.
Notsure if this is the right place but can i use a Raspberry Pi with the Avalon Nano usb?
Edit: using Raspbian as os
this link should have info somewhere. I have a 4.1 800-1000gh miner. But they gifted a usb to me.
I have not done an usb in 1 year So If you figure out how to I would run mine as well as my 4.1