Other confs

Lightdm

echo "background=/usr/share/images/backgrounds/parmitano.jpg" | sudo tee -a /etc/lightdm/lightdm-gtk-greeter.conf

Background img (from ESA):

mkdir -p /usr/share/images/backgrounds
curl -o /usr/share/images/backgrounds/parmitano.jpg https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2013/07/columbus_is_visible_in_the_reflection/12941691-4-eng-GB/Columbus_is_visible_in_the_reflection.jpg

Fish

Omf:

curl -L https://get.oh-my.fish | fish

Staship:

curl -fsSL https://starship.rs/install.sh | bash