diff --git a/README.md b/README.md
index fa45b20..f38dc23 100644
--- a/README.md
+++ b/README.md
@@ -57,7 +57,7 @@ To allow your plugin to deliver the custom element file, you'll need to add or m
 // my/plugin/lib.php
 function my_plugin_pluginfile($course, $cm, $context, $filearea, $args, $forcedownload, array $options = array()) {
     $pluginpath = __DIR__.'/';
-    
+  
     // ...
 
     if ($filearea === 'vendorjs') {
@@ -65,7 +65,7 @@ function my_plugin_pluginfile($course, $cm, $context, $filearea, $args, $forcedo
         send_file($path, basename($path));
         return true;
     } 
-    
+  
     // ...
 }
 ```
@@ -80,6 +80,7 @@ as a parameter in the example above.
 The following example shows how to make use of Angular to call string functions from Moodle.
 
 This is a general purpose Angular service that allows consuming any Moodle service function:
+
 ```ts
 import {Injectable} from '@angular/core';
 
@@ -407,7 +408,12 @@ Enjoy!
 
 ```
 
+## Flags
+
+### The `local_ce_enable_usage`flag.
+
 ## License
+
 Copyright (c) 2021 Open LMS (https://www.openlms.net)
 
 This program is free software: you can redistribute it and/or modify it under
@@ -420,4 +426,4 @@ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 PARTICULAR PURPOSE.  See the GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License along with
-this program.  If not, see <http://www.gnu.org/licenses/>.
+this program.  If not, see [http://www.gnu.org/licenses/](http://www.gnu.org/licenses/).
diff --git a/classes/api/custom_element_parameters.php b/classes/api/custom_element_parameters.php
index 52d3233..cfcf365 100644
--- a/classes/api/custom_element_parameters.php
+++ b/classes/api/custom_element_parameters.php
@@ -42,7 +42,7 @@ class custom_element_parameters {
     public const CE_VALID_PARAMS = [
         self::CE_PARAM_NUMBER,
         self::CE_PARAM_BOOL,
-        self::CE_PARAM_STRING
+        self::CE_PARAM_STRING,
     ];
 
     /**
@@ -122,7 +122,7 @@ public function add_parameter(string $name, string $type): void {
         }
         $this->parameters[] = [
             'name' => $name,
-            'type' => $type
+            'type' => $type,
         ];
     }
 
diff --git a/classes/api/custom_element_requirements.php b/classes/api/custom_element_requirements.php
index c40af4b..d37c9ca 100644
--- a/classes/api/custom_element_requirements.php
+++ b/classes/api/custom_element_requirements.php
@@ -129,7 +129,7 @@ public function get_plugins(): array {
     public function add_plugin(string $pluginid, string $pluginversion): void {
         $this->plugins[] = [
             'pluginid' => $pluginid,
-            'pluginversion' => $pluginversion
+            'pluginversion' => $pluginversion,
         ];
     }
 
diff --git a/classes/api/instance_config.php b/classes/api/instance_config.php
index 824e691..1179436 100644
--- a/classes/api/instance_config.php
+++ b/classes/api/instance_config.php
@@ -106,7 +106,7 @@ public function get_parameters(): array {
     public function add_parameter(string $name, $value): void {
         $this->parameters[] = [
             'name' => $name,
-            'value' => $value
+            'value' => $value,
         ];
     }
 }
diff --git a/classes/ce_loader.php b/classes/ce_loader.php
index c53baf6..3cdbca4 100644
--- a/classes/ce_loader.php
+++ b/classes/ce_loader.php
@@ -1,5 +1,4 @@
 <?php
-
 // This file is part of Moodle - http://moodle.org/
 //
 // Moodle is free software: you can redistribute it and/or modify
diff --git a/classes/form/custom_element_form.php b/classes/form/custom_element_form.php
index 91becae..c58079d 100644
--- a/classes/form/custom_element_form.php
+++ b/classes/form/custom_element_form.php
@@ -132,7 +132,7 @@ public function get_iconfile_options($forform = false) {
 
         if ($forform) {
             $opts['accepted_types'] = [
-                'web_image'
+                'web_image',
             ];
             $opts['return_types'] = FILE_INTERNAL | FILE_EXTERNAL;
         }
@@ -153,7 +153,7 @@ public function get_modulefile_options($forform = false) {
 
         if ($forform) {
             $opts['accepted_types'] = [
-                'js'
+                'js',
             ];
             $opts['return_types'] = FILE_INTERNAL | FILE_EXTERNAL;
         }
diff --git a/classes/form/set_form.php b/classes/form/set_form.php
index 317dc8e..50462be 100644
--- a/classes/form/set_form.php
+++ b/classes/form/set_form.php
@@ -62,7 +62,7 @@ protected function definition() {
         $mform->addElement('course', 'courseids', get_string('courses'), [
             'multiple' => true,
             'includefrontpage' => true,
-            'noselectionstring' => get_string('allcourses', 'search')
+            'noselectionstring' => get_string('allcourses', 'search'),
         ]);
 
         $capabilityopts = [
@@ -101,7 +101,7 @@ public function get_iconfile_options($forform = false) {
 
         if ($forform) {
             $opts['accepted_types'] = [
-                'web_image'
+                'web_image',
             ];
             $opts['return_types'] = FILE_INTERNAL | FILE_EXTERNAL;
         }
diff --git a/classes/model/custom_element.php b/classes/model/custom_element.php
index aea1ae0..2612f37 100644
--- a/classes/model/custom_element.php
+++ b/classes/model/custom_element.php
@@ -164,14 +164,14 @@ public function __construct($id, $name, $cename, $cetype, $channel, $defaulticon
             $murl = new \moodle_url('/local/ce/view.php', [
                 'controller' => 'admin',
                 'action' => 'editce',
-                'ceid' => $this->id
+                'ceid' => $this->id,
             ]);
             $this->editurl = $murl->out(false);
 
             $murl = new \moodle_url('/local/ce/view.php', [
                 'controller' => 'admin',
                 'action' => 'deletece',
-                'ceid' => $this->id
+                'ceid' => $this->id,
             ]);
             $this->deleteurl = $murl->out(false);
 
@@ -226,13 +226,13 @@ public function validate(): array {
         }
 
         $matches = [];
-        preg_match('/[a-z]+-[a-z\\-]+/',$this->cename,$matches);
+        preg_match('/[a-z]+-[a-z\\-]+/', $this->cename, $matches);
         if (empty($matches)) {
             $errors['cename'] = get_string('ce_form_error_cename_lettershyphens', 'local_ce');
         }
 
         $matches = [];
-        preg_match('/[A-Z]+/',$this->cename,$matches);
+        preg_match('/[A-Z]+/', $this->cename, $matches);
         if (!empty($matches)) {
             $errors['cename'] = get_string('ce_form_error_cename_nouppercase', 'local_ce');
         }
diff --git a/classes/model/instance.php b/classes/model/instance.php
index a195c33..1a3b9f7 100644
--- a/classes/model/instance.php
+++ b/classes/model/instance.php
@@ -105,7 +105,7 @@ public function __construct($id, $customname, $customelementid, $setid, $config,
                 'controller' => 'admin',
                 'action' => 'editinstance',
                 'setid' => $this->setid,
-                'instanceid' => $this->id
+                'instanceid' => $this->id,
             ]);
             $this->editurl = $murl->out(false);
 
@@ -113,13 +113,13 @@ public function __construct($id, $customname, $customelementid, $setid, $config,
                 'controller' => 'admin',
                 'action' => 'deleteinstance',
                 'setid' => $this->setid,
-                'instanceid' => $this->id
+                'instanceid' => $this->id,
             ]);
             $this->deleteurl = $murl->out(false);
 
             $murl = new \moodle_url('/local/ce/view.php', [
                 'action' => 'launch',
-                'instanceid' => $this->id
+                'instanceid' => $this->id,
             ]);
             $this->launchurl = $murl->out(false);
 
diff --git a/classes/model/set.php b/classes/model/set.php
index c160aed..44877a1 100644
--- a/classes/model/set.php
+++ b/classes/model/set.php
@@ -109,21 +109,21 @@ public function __construct($id, $name, $status, $defaulticon, $requiredcapabili
             $murl = new \moodle_url('/local/ce/view.php', [
                 'controller' => 'admin',
                 'action' => 'editset',
-                'setid' => $this->id
+                'setid' => $this->id,
             ]);
             $this->editurl = $murl->out(false);
 
             $murl = new \moodle_url('/local/ce/view.php', [
                 'controller' => 'admin',
                 'action' => 'deleteset',
-                'setid' => $this->id
+                'setid' => $this->id,
             ]);
             $this->deleteurl = $murl->out(false);
 
             $murl = new \moodle_url('/local/ce/view.php', [
                 'controller' => 'admin',
                 'action' => 'listinstances',
-                'setid' => $this->id
+                'setid' => $this->id,
             ]);
             $this->instancesurl = $murl->out(false);
 
@@ -206,7 +206,7 @@ public static function get_all_published_with_caps($caps = []) : array {
         $capquery .= ')';
 
         $params = array_merge([
-            'status' => self::SET_STATUS_PUBLISHED
+            'status' => self::SET_STATUS_PUBLISHED,
         ], $capparams);
 
         $thetable = static::get_table();
diff --git a/controller/admin.php b/controller/admin.php
index 2e57725..88003e3 100644
--- a/controller/admin.php
+++ b/controller/admin.php
@@ -22,7 +22,7 @@
  * @copyright Copyright (c) 2020 Open LMS (https://www.openlms.net)
  * @license   http://opensource.org/licenses/gpl-3.0.html GNU Public License
  */
-defined('MOODLE_INTERNAL') or die('Direct access to this script is forbidden.');
+defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
 
 use local_ce\api\custom_element_requirements;
 use local_ce\form\instance_form;
@@ -283,7 +283,7 @@ public function editset_action() {
             $courseidsparams = [
                 'courseids' => array_map(function($setcourse) {
                     return $setcourse->courseid;
-                }, $setcourses)
+                }, $setcourses),
             ];
 
             $mform->set_data((object)array_merge((array)$set, (array)$toform, $courseidsparams));
@@ -338,7 +338,7 @@ public function listinstances_action() {
         $newurl = new moodle_url('/local/ce/view.php', [
             'controller' => 'admin',
             'action' => 'editinstance',
-            'setid' => $setid
+            'setid' => $setid,
         ]);
 
         $saved = optional_param('saved', 0, PARAM_INT);
@@ -356,7 +356,7 @@ public function listinstances_action() {
                 'instances' => $instances,
                 'newurl' => $newurl->out(false),
                 'setname' => $setname,
-                'listsetsurl' => $listsetsurl
+                'listsetsurl' => $listsetsurl,
             ]);
     }
 
@@ -372,7 +372,7 @@ public function editinstance_action() {
         $listinstancessmurl = new moodle_url('/local/ce/view.php', [
             'controller' => 'admin',
             'action' => 'listinstances',
-            'setid' => $setid
+            'setid' => $setid,
         ]);
         $listinstancesurl = $listinstancessmurl->out(false);
         $listinstancesstr = get_string('admin_listinstances', 'local_ce');
@@ -396,7 +396,7 @@ public function editinstance_action() {
         $submitparams = [
             'controller' => 'admin',
             'action' => 'editinstance',
-            'setid' => $setid
+            'setid' => $setid,
         ];
         if (!empty($instanceid)) {
             $submitparams['instanceid'] = $instanceid;
@@ -480,7 +480,7 @@ private function render_ce_admin_tabs($action) {
                         'url' => $listsetsurl,
                         'label' => $listsetsstr,
                     ],
-                ]
+                ],
             ]);
     }
 }
diff --git a/db/access.php b/db/access.php
index 9619f0d..c54954c 100644
--- a/db/access.php
+++ b/db/access.php
@@ -23,7 +23,7 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-defined('MOODLE_INTERNAL') or die();
+defined('MOODLE_INTERNAL') || die();
 
 $capabilities = [
     // Manage custom elements.
diff --git a/lib.php b/lib.php
index 898adc3..ea86681 100644
--- a/lib.php
+++ b/lib.php
@@ -86,7 +86,7 @@ function local_ce_pluginfile($course, $cm, $context, $filearea, $args, $forcedow
         // We can now send the file back to the browser - in this case with a cache lifetime of 1 day and no filtering.
         send_stored_file($file, 86400, 0, $forcedownload, $options);
     } else {
-       return false;
+        return false;
     }
 }
 
@@ -113,7 +113,7 @@ function local_ce_add_dock_to_footer() {
     $currentcaps = [];
     $capstocheck = [
         'local/ce:learnerset_view',
-        'local/ce:instructorset_view'
+        'local/ce:instructorset_view',
     ];
     // Check for caps.
     foreach ($capstocheck as $cap) {
@@ -137,7 +137,7 @@ function local_ce_add_dock_to_footer() {
     }
 
     $template = $OUTPUT->render_from_template('local_ce/set_dock', (object)[
-        'sets' => $setstorender
+        'sets' => $setstorender,
     ]);
 
     if (!isset($CFG->additionalhtmlfooter)) {
diff --git a/settings.php b/settings.php
index 84f636c..1281f37 100644
--- a/settings.php
+++ b/settings.php
@@ -56,7 +56,7 @@
     // Custom Elements management page.
     $urlmanagece = new moodle_url('/local/ce/view.php', [
         'controller' => 'admin',
-        'action' => 'view'
+        'action' => 'view',
     ]);
     $ADMIN->add($plugin, new admin_externalpage('adminpage_view',
         new lang_string('adminpageheading', $plugin),
diff --git a/version.php b/version.php
index db17080..08f841f 100644
--- a/version.php
+++ b/version.php
@@ -32,5 +32,5 @@
 $plugin->cron = 0;
 $plugin->maturity = MATURITY_ALPHA;
 $plugin->dependencies = [
-    'local_mr' => ANY_VERSION
+    'local_mr' => ANY_VERSION,
 ];