Test matomo patch.

assets/patches/matomo-3363521-8.patch

@@ -0,0 +1,16 @@
+diff --git a/matomo.install b/matomo.install
+index 021b86b..c557546 100644
+--- a/matomo.install
++++ b/matomo.install
+@@ -15,8 +15,9 @@ use Drupal\user\Entity\Role;
+  */
+ function matomo_install(): void {
+   // Make the default install more user and GDPR friendly.
+-  $role = Role::load('authenticated');
+-  $role->grantPermission('opt-in or out of matomo tracking');
++  user_role_grant_permissions(AccountInterface::AUTHENTICATED_ROLE, [
++	  'opt-in or out of matomo tracking',
++  ]);
+   $success = $role->save();
+   if ($success) {
+     $messenger = \Drupal::messenger();

composer.json

@@ -135,7 +135,11 @@
                 "type:drupal-custom-theme"
             ]
         },
-        "patches": {}
+        "patches": {
+	    "drupal/matomo": {
+	        "Allow install from existing config": "assets/patches/matomo-3363521-8.patch"
+	    }
+	}
     },
     "scripts": {
         "post-root-package-install": ["Islandora\\StarterSite::rootPackageInstall"]