function cli_requirements_pre_run() {
	declare -g ARMBIAN_COMMAND_REQUIRE_BASIC_DEPS="yes" # Require prepare_host_basic to run before the command.

	if [[ "$(uname)" != "Linux" ]]; then
		display_alert "Not running on Linux" "refusing to run 'requirements'" "err"
		exit 1
	fi

	if [[ "${EUID}" == "0" ]]; then # we're already root. Either running as real root, or already sudo'ed.
		display_alert "Already running as root" "great" "debug"
	else
		# Fail, installing requirements is not allowed as non-root.
		exit_with_error "This command requires root privileges - refusing to run"
	fi
}

function cli_requirements_run() {
	initialize_extension_manager # initialize the extension manager.
	declare -a -g host_dependencies=()

	obtain_and_check_host_release_and_arch # Sets HOSTRELEASE & validates it for sanity; also HOSTARCH
	host_release="${HOSTRELEASE}" host_arch="${HOSTARCH}" early_prepare_host_dependencies

	LOG_SECTION="install_host_dependencies" do_with_logging install_host_dependencies "for requirements command"

	# @TODO: get stuff like shellcheck, shfmt, and ORAS in here. Deploy them somewhere not-in-./cache, so it's baked into Docker image.

	display_alert "Done with" "@host dependencies" "cachehit"
}