Config nmcli auto wifi connect

#1

I tried to conifg a systemd service that use nmcli connect wifi at system startup, so I can debug board with ssh directly and save cable connection.I am not familiar with systemd and add service reference to netcfg and v2ray. such as
rock@rockpie:/etc/systemd$ cat system/wificon.service
[Unit]
Description=Auto WIFI connect at startup
Wants=network.target
Before=network.target

[Service]
CapabilityBoundingSet=CAP_NET_ADMIN CAP_NET_BIND_SERVICE
AmbientCapabilities=CAP_NET_ADMIN CAP_NET_BIND_SERVICE
User=nobody
ExecStart=/usr/bin/nmcli con up home

[Install]
WantedBy=multi-user.target

it not work. and journalctl -b -1 seems have not any relative info

#2

ok, I take a roundabout to auto startip wifi connect.just add command to /etc/rc.local

rock@rockpie:~$ cat /etc/rc.local
#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
/usr/bin/nmcli con up home

if [ -e /etc/first_boot ]; then
    /bin/sh /etc/first_boot
    rm /etc/first_boot
    reboot
fi

exit 0

maybe crontab or add to /etc/init.d also feasible.but there remain a flaw is every time connect to wifi will lead to kernel oops.I encounter such situation in company’s product haven’t write keymap, which use 8821cs while it is 8821cu in rockpi E.I thinks it is a common confusion.Any one have a good solution?