Check if NM 0.9.10's "files are no longer watched for changes by default" change affects us
It might be that we need to run
nmcli con reload after bind-mounting
the NM config persistent directory, for example.
Hint: start with writing a test case to check that a connection added
with NM persistence enabled shows up after rebooting with persistence
enabled. We already have some code to add NM connections, that’s used in