Easiest: USB to wired networking

If you have a wired network that runs a DHCP server, you can just use a USB-to-Ethernet adapter like the one below.

It should be automatically detected and configured. To check from the JeVois-Pro console, you can issue shell ifconfig and inspect the configuration. You can then move to the System tab and try to ping jevois.usc.edu

USB to Wifi networking with RTL8812AU adapter

Many Wifi adapters are not by default included in the Linux kernel because they contain closed-source code.

We have pre-installed drivers for the popular Realtek RTL8812AU chip present in many adapters of various brands.

To select a Wifi network, the easiest is to proceed as follows:

In JeVois-Pro System tab, choose to reboot to Linux Console.
Restart the camera.
login as root with password jevois
type startx
at the top-right, select the networking icon and pick a network and enter the Wifi password.
check that the network is working, for example, launch the web browser and browse around.
at top-right, log out. This will get you back to the console.
check that the network is still working, for example ping jevois.usc.edu
type jevoispro.sh to start JeVois software
in the System tab, select to reboot to JeVois-Pro and reboot the machine.

The configuration should be persistent and your Wifi network should be selected on boot automatically.

M.2 PCI-express Wifi networking

If you will not be using a Coral TPU, you can use the M.2 A+E slot in JeVois-Pro to connect a Wifi card.

Proceed as follows:

choose one that uses PCIe. We have had good success with Intel-based cards.
make sure the chip is supported by Linux kernel 4.9.x; in particular, some of the latest Intel AX210 chipsets require kernel 5.10+ and will not work on JeVois-Pro. See here if you are planning to use an Intel chipset, or search the web for linux compatibility for other chipsets.
make sure it is M.2 2230 (22mm x 30mm) A-key or E-key (most M.2 Wifi cards should be).
Open JeVois-Pro (4 screws)
Remove the TPU board if you have one
Insert Wifi card
Secure it using an M2x5mm screw

The card should be detected. You can then configure it as above for the USB to Wifi case.