In most manjaro editions you connect to your wifi with networkmanager. This tutorial shows you the basics of how to use systemd-networkd and wpa_supplicant instead.  Why would you want to do this?  Networkmanager usually does great job in managing your network. However, it uses a lot of resources to do this (albeit this is neglible on most modern hardware). Systemd-networkd can do the same job for a lot less - On my system networkmanager consumes about 20mb ram, plus about 15mb if I use a tray i...