Configure static IP address on Arch Linux

I use NetworkManager to manage network on Arch Linux:

# systemctl --type=service
  UNIT                               LOAD   ACTIVE SUB     DESCRIPTION                               >
  dbus.service                       loaded active running D-Bus System Message Bus                  >
  getty@tty1.service                 loaded active running Getty on tty1                             >
  kmod-static-nodes.service          loaded active exited  Create list of static device nodes for the>
  NetworkManager.service             loaded active running Network Manager
......

So I will leverage nmcli to configure static IP address:

(1) Check current connection:

# nmcli con show
NAME                UUID                                  TYPE      DEVICE
Wired connection 1  f1014ad6-4291-3c29-9b0d-b552a0c5eb02  ethernet  enp0s3

(2) Configure IP address, gateway and DNS:

# nmcli con modify f1014ad6-4291-3c29-9b0d-b552a0c5eb02 ipv4.addresses 192.168.1.124/24
# nmcli con modify f1014ad6-4291-3c29-9b0d-b552a0c5eb02 ipv4.gateway 192.168.1.1
# nmcli con modify f1014ad6-4291-3c29-9b0d-b552a0c5eb02 ipv4.dns "8.8.8.8"
# nmcli con modify f1014ad6-4291-3c29-9b0d-b552a0c5eb02 ipv4.method manual

(3) Active connection:

# nmcli con up f1014ad6-4291-3c29-9b0d-b552a0c5eb02

It is done! BTW, the connection file can be found:

# cat /etc/NetworkManager/system-connections/Wired\ connection\ 1.nmconnection
[connection]
id=Wired connection 1
uuid=f1014ad6-4291-3c29-9b0d-b552a0c5eb02
type=ethernet
autoconnect-priority=-999
interface-name=enp0s3
......

Reference:
How to Configure Network Connection Using ‘nmcli’ Tool.