Thanks for the pointer. I have succesfully installed the lib and started the nu daemon on the r-pi! The daemon is sync’ing and can answer rpc commands.

For those who also want to try, here are some details that may or may not be relevant – I followed Tea42’s instruction for setting up peerunity on a Raspberry to setup the r-pi, except I didn’t borther to remove “unneeded and risky applications” as instructed in install_peercoin.sh . The peerunity crashes for some reason but nu is working.