/etc/NetworkManager/system-connections/ contains files (most of them with a .nmconnection extension, but some also without any extension) whose content is something like [connection] id=someSSID uuid=01234567-89ab-cdef-0123-456789abcdef type=wifi timestamp=1726994746 [wifi] mode=infrastructure ssid=someSSID [wifi-security] key-mgmt=wpa-psk psk=theSecretPassword [ipv4] method=auto [ipv6] ip6-privacy=2 method=auto [proxy]