[[ -z $BOX_SETUP_OS ]] &&
    echo "BOX_SETUP_OS must be set; options: arch, artix, debian, macos" &&
    exit 1

local install_cmd=''
local update_pkg_manager_and_defs_cmd=''
local update_pkgs_cmd=''
case $BOX_SETUP_OS in
    (arch | artix)
        install_cmd="sudo pacman -S"
        update_pkg_manager_and_defs_cmd='' # don't; update system instead?
        update_pkgs_cmd='sudo pacman -Syu'
	;;
    (debian)
        install_cmd="sudo apt install"
        update_pkg_manager_and_defs_cmd='sudo apt update'
        update_pkgs_cmd='sudo apt upgrade'
	;;
    (macos)
        install_cmd="brew install"
        update_pkg_manager_and_defs_cmd='brew update'
        update_pkgs_cmd='brew upgrade'
	;;
esac

export BOX_SETUP_INSTALL_COMMAND="$install_cmd"
export BOX_SETUP_UPDATE_PKG_MANAGER_AND_DEFS_CMD="$update_pkg_manager_and_defs_cmd"
export BOX_SETUP_UPDATE_PKGS_CMD="$update_pkgs_cmd"