Setup SSH and Wifi on Pi OS

Enable SSH

After OS finishes installing, install media should have root directory named boot (for Pi Lite, anyway). Create an empty file called ssh. That's it.

Setup WiFi

Create a text file called wpa_supplicant.conf and enter:

wpa_supplicant.conf

country=us
update_config=1
ctrl_interface=/var/run/wpa_supplicant
network={
 scan_ssid=1
 ssid="MyNetworkSSID"
 psk="MyPa55w0rd"
}