If you have bought a netgear A7000 wifi dongle for your desktop, this is the easy way to ensure it plays nice with your Linux distro. Some of the versioning could be outdated, so be sure to change the versions for your system (and find new dkms module if needed).

netgear_linux_driver.sh

$driver = rtl8814au
cd $HOME
sudo apt update
sudo apt install git dkms libelf-dev
git clone https://github.com/zebulon2/$driver.git
sudo dkms add ./$driver
sudo dkms build -m $driver -v 4.3.21
sudo dkms install -m $driver -v 4.3.21
echo "How to enroll the driver as a trusted module:"
echo "Reboot and allow custom keys in Secure Boot in BIOS."
echo "Now reboot into secure boot and enter the password"
echo "If you don't want secure boot, run sudo dkms remove rtl8814au/4.3.21 --all to start over"
echo "and then follow this advice: https://wiki.ubuntu.com/UEFI/SecureBoot/DKMS"
echo "Hints:"
echo "inspect make.log with cat /var/lib/dkms/rtl8814au/kernel-4.15.0-36-generic-x86_64/log/make.log"
echo "mokutil --list-new or mokutil --list-enrolled will help show the keys are ready."
echo "dkms status will show the build is installed."