@lucy You forgot to add GNU silly.

After you add GNU, it's as easy as adding to wpa_supplicant.conf;
network={
ssid="<SSID>"
psk="<psk>"
}

You can even become a wireless AP too with WPA2+WPA3 with;
network={
ssid="Freedom"
psk="<freedom presharedkeyfied>"
mode=2
ieee80211w=1 #optional 802.11w
wps_disabled=1
proto=RSN
key_mgmt=WPA-PSK WPA-PSK-SHA256 SAE
}