ACF Component Field - Save component in sub folders

functions.php

<?php

// NOTE: You'd have to create /acf-json/components/ foler in the theme manually first,
//       just like how you'd manutally create the acf-json folder


/**
 * In /includes/json.php:17, is where the acf_json write the local json file. 
 * So this hook has to be 9, just before acf write the file.  
 */
add_action('acf/update_field_group',    'maybe_switch_json_location_just_before_saving', 9);
add_action('acf/duplicate_field_group', 'maybe_switch_json_location_just_before_saving', 9);
add_action('acf/untrash_field_group',   'maybe_switch_json_location_just_before_saving', 9);
add_action('acf/trash_field_group',     'maybe_switch_json_location_just_before_saving', 9);
add_action('acf/delete_field_group',    'maybe_switch_json_location_just_before_saving', 9);
function maybe_switch_json_location_just_before_saving($field_group) {
	if ($field_group['is_acf_component']) {
		acf_update_setting('save_json', get_stylesheet_directory() . '/acf-json/components/');
	}
}

/**
 * In /includes/json.php:17, is where the acf_json write the local json file. 
 * So this hook has to be 11, just after acf finished writing the file.  
 */
add_action('acf/update_field_group',    'switch_json_location_back_after_saving', 11);
add_action('acf/duplicate_field_group', 'switch_json_location_back_after_saving', 11);
add_action('acf/untrash_field_group',   'switch_json_location_back_after_saving', 11);
add_action('acf/trash_field_group',     'switch_json_location_back_after_saving', 11);
add_action('acf/delete_field_group',    'switch_json_location_back_after_saving', 11);
function switch_json_location_back_after_saving() {
	acf_update_setting('save_json', get_stylesheet_directory() . '/acf-json/');
}

/**
 * In case of new install for initial syncing, we need to tell acf to look
 * into the component folder as well
 */
add_filter('acf/settings/load_json', 'maybe_load_component_from_json_location');
function maybe_load_component_from_json_location($paths) {
	$paths[] = get_stylesheet_directory() . '/acf-json/components/';

	return $paths;
}