diff --git a/roles/moodle/tasks/install.yml b/roles/moodle/tasks/install.yml
index 34390ecc1..8ff16ba1c 100644
--- a/roles/moodle/tasks/install.yml
+++ b/roles/moodle/tasks/install.yml
@@ -47,6 +47,8 @@
 - name: Install libsodium23 + 8 PHP packages (run 'php -m' or 'php -i' to verify)
   package:
     name:
+      - php-apcu
+      - ghostscript
       - libsodium23                      # 2021-06-28: Likewise installed in nginx/tasks/install.yml via php{{ php_version }}-fpm AND httpd/tasks/install.yml via libapache2-mod-php{{ php_version }} AND wordpress/tasks/install.yml -- it can ALSO be auto-installed by phpX.Y-cgi OR phpX.Y-cli as confirmed by 'apt rdepends libsodium23' -- Recommended by Moodle 3.11+ at https://docs.moodle.org/311/en/Environment_-_PHP_extension_sodium -- whereas https://www.php.net/manual/en/sodium.installation.php says it's always bundled with PHP 7.2+ -- VERIFY USING 'php -i | grep sodium' AND 'apt list "*sodium*"'
       #- php{{ php_version }}-common     # 2021-06-27: Auto-installed as an apt dependency.  REGARDLESS: php{{ php_version }}-common superset php{{ php_version }}-cli is auto-installed by php{{ php_version }}-fpm in nginx/tasks/install.yml
       #- php{{ php_version }}-cli        # 2021-06-27: Compare to php{{ php_version }}-common just above!  2020-06-15: In the past this included (below) mbstring?  However this is not true on Ubuntu Server 20.04 LTS.
@@ -55,9 +57,12 @@
       - php{{ php_version }}-intl        # 2020-12-03: Required by Moodle 3.10+ -- Likewise installed in mediawiki/tasks/install.yml, nextcloud/tasks/install.yml, wordpress/tasks/install.yml
       - php{{ php_version }}-mbstring    # 2020-06-15: Required by Moodle 3.9+ -- Likewise installed in mediawiki/tasks/install.yml, nextcloud/tasks/install.yml, pbx/tasks/freepbx_dependencies.yml, wordpress/tasks/install.yml
       - php{{ php_version }}-pgsql       # 2021-06-27: Required for PostgreSQL
+      - php{{ php_version }}-json
+      - php{{ php_version }}-opcache
+      - php{{ php_version }}-readline
       - php{{ php_version }}-soap        # 2020-12-03: Recommended by Moodle 3.10+
       - php{{ php_version }}-xml         # 2021-06-28: Likewise installed in mediawiki/tasks/install.yml, nextcloud/tasks/install.yml, pbx/tasks/freepbx_dependencies.yml, wordpress/tasks/install.yml -- AND REGARDLESS dragged in later by Admin Console's use of php-pear for roles/cmdsrv/tasks/main.yml -- run 'php -m | grep -i xml' which in the end shows {libxml, SimpleXML, xml, xmlreader, xmlwriter}
-      #- php{{ php_version }}-xmlrpc     # 2021-06-27: Required per https://docs.moodle.org/19/en/PHP_settings_by_Moodle_version#PHP_Extensions_and_libraries BUT UNMAINTAINED FOR YEARS (POSSIBLE SECURITY RISK) SO MOVED TO PECL: https://php.watch/versions/8.0/xmlrpc
+      - php{{ php_version }}-xmlrpc     # 2021-06-27: Required per https://docs.moodle.org/19/en/PHP_settings_by_Moodle_version#PHP_Extensions_and_libraries BUT UNMAINTAINED FOR YEARS (POSSIBLE SECURITY RISK) SO MOVED TO PECL: https://php.watch/versions/8.0/xmlrpc
       - php{{ php_version }}-zip         # 2021-06-27: Likewise installed in nextcloud/tasks/install.yml, pbx/tasks/freepbx_dependencies.yml, wordpress/tasks/install.yml
     state: present