clean install

web/modules/jsonapi_extras/jsonapi_extras.post_update.php

@@ -0,0 +1,16 @@
+<?php
+
+/**
+ * @file
+ * Contains post-update hooks.
+ */
+
+/**
+ * Implements hook_post_update_NAME().
+ */
+function jsonapi_extras_post_update_set_default_value_for_default_disabled() {
+  \Drupal::configFactory()
+    ->getEditable('jsonapi_extras.settings')
+    ->set('default_disabled', FALSE)
+    ->save(TRUE);
+}