docs(vue): Manually set up vueIntegration

docs/platforms/javascript/common/configuration/integrations/vue.mdx

@@ -5,8 +5,37 @@ supported:
   - javascript.vue
 ---
 
+<Alert level="info">
+
+  This integration is enabled by default (recommended) but can also be added manually.
+
+</Alert>
+
 _Import name: `Sentry.vueIntegration`_
 
 This integration is enabled by default. If you'd like to modify your default integrations, read [this](./../#modifying-default-integrations).
 
 Adds error and span instrumentation for Vue applications.
+
+## Manual Setup
+
+If the Vue application is not defined from the start, you can add error monitoring for Vue-specific errors later on.
+To manually add the integration for late-defined Vue applications:
+
+```javascript {filename:main.js}
+import * as Sentry from '@sentry/vue';
+
+Sentry.init({
+  dsn: '...',
+  // Filter out default `Vue` integration
+  integrations: integrations => integrations.filter(integration => integration.name !== 'Vue'),
+});
+
+// Sometimes later
+const app = createApp({
+  template: '<div>hello</div>',
+});
+
+Sentry.addIntegration(Sentry.vueIntegration({ app }));
+`
+

platform-includes/getting-started-config/javascript.vue.mdx

@@ -96,3 +96,9 @@ The SDK accepts a few Vue-specific `Sentry.init` configuration options:
 - `attachProps` (defaults to `true`) - Includes all Vue components' props with the events.
 - `logErrors` (defaults to `true`) - Decides whether SDK should call Vue's original `logError` function as well.
 - `trackComponents` (defaults to `false`) - Track your app's components. Learn more about [component tracking](./features/component-tracking) and all its options.
+
+
+### Late-Defined Vue Apps
+
+If the Vue application is not defined from the start, you can add error monitoring for Vue-specific errors later on.
+To manually add the integration for late-defined Vue applications check out the docs for the <PlatformLink to="/configuration/integrations/vue/">Vue Integration</PlatformLink>.