# Create a component under the username in posts
**URL:** https://meta.discourse.org/t/create-a-component-under-the-username-in-posts/375901
**Category:** Development
**Created:** [July 26, 2025, 1:57am UTC](https://meta.discourse.org/t/create-a-component-under-the-username-in-posts/375901 "2025-07-26T01:57:40Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@SubStrider](https://meta.discourse.org/u/SubStrider)
#### Post date: [July 26, 2025, 1:57am UTC](https://meta.discourse.org/t/create-a-component-under-the-username-in-posts/375901/1 "2025-07-26T01:57:40Z")
Continuing the discussion from [How to create a custom activity tab in user profile?](https://meta.discourse.org/t/how-to-create-a-custom-activity-tab-in-user-profile/361047/7):
> [@How to create a custom activity tab in user profile?](https://meta.discourse.org/t/how-to-create-a-custom-activity-tab-in-user-profile/361047/7):
>
> It’s fine to play with this, but please make sure to read the disclaimer in the setting description. This mode is not yet ready for production use. We aren’t even using it on Meta.
>
> For the current post-stream implementation, you’d need to use the old `decorateWidget` API, or the `addPosterIcon` API:
This is part of the core now, right? And I can go back to using this space below the username by targeting like this?
```plaintext
api.renderInOutlet("below-post-meta-data", SomeThing);
```
---
### Author:  [@david](https://meta.discourse.org/u/david)
#### Post date: [July 28, 2025, 8:17am UTC](https://meta.discourse.org/t/create-a-component-under-the-username-in-posts/375901/2 "2025-07-28T08:17:24Z")
> [@SubStrider](#):
>
> This is part of the core now, right?
As long as all your other themes/plugins are updated, then yes 👍 Details here:
> [@Upcoming post stream changes - How to prepare themes and plugins](https://meta.discourse.org/t/upcoming-post-stream-changes-how-to-prepare-themes-and-plugins/372063):
>
> We’re moving away from the legacy “widget” rendering system, replacing it with modern Glimmer components. We’ve recently modernized the post stream using Glimmer components. This guide will walk you through migrating your plugins and themes from the old widget-based system to the new Glimmer implementation. Don’t worry—this migration is more straightforward than it might seem at first glance. We’ve designed the new system to be more intuitive and powerful than the old widget system, and this g…