Configurations used to bootstrap my computers through nixos-anywhere
Use make build_iso to build an installation ISO with pre-set ssh key
Once booted from installation ISO, run following command to set up WIFI:
read -rp "WIFI SSID: "$'\n' WIFI_SSID
read -srp "WIFI password: "$'\n' WIFI_PASSWORD
sudo mkdir -p /run/secrets/
cat <<EOF | sudo tee /run/secrets/wifi.env > /dev/null
HOME_WIFI_NAME="$WIFI_SSID"
HOME_WIFI_PASSWORD_PSK="${WIFI_PASSWORD/&/\&}"
EOF