Just a FYI
Previously using nmtui-connect and adding a Wifi Config would survive across reboots.
With nightly: Armbian_5.26.170226_Orangepipcplus_Ubuntu_xenial_dev_4.10.0
I find that I must repeatedly use nmtui-connect and even then it creates additional NM connection profiles
# nmcli c
NAME UUID TYPE DEVICE
MyWifi 60caede4-0d67-4e72-9696-6e9f76f9ec0a 802-11-wireless --
MyWifi 1 a4f778ff-e8b9-431c-ad70-98d3e32252bc 802-11-wireless --
No other OS mods (such as /etc/network/interfaces) were made
After nand-sata-install only nmtui-connect was utilized