NIXOS_CONFIGURATION="/etc/nixos"
HOME_MANAGER_CONFIGURATION="$HOME/.config/home-manager"

(
    cd "$NIXOS_CONFIGURATION" || exit 1
    git pull --ff --ff-only || exit 1
    sudo nixos-rebuild switch
)

(
    cd "$HOME_MANAGER_CONFIGURATION" || exit 1
    git pull --ff --ff-only || exit 1
    home-manager switch
)