> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nuon.co/llms.txt
> Use this file to discover all available pages before exploring further.

> JSON Schema reference for metadata configuration

# Metadata

# Metadata

## Properties

| Property                            | Description                                                                                                                                                                                             | Values         | Example                                                                        |
| ----------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------- | ------------------------------------------------------------------------------ |
| **`version`**<br />string           | config file version Version of the configuration file format                                                                                                                                            | **✅ Required** | `"1.0.0"`, `"2.0.0"`                                                           |
| **`description`**<br />string       | app description Detailed description of the application, displayed in the installer UI                                                                                                                  | **Optional**   | `"A powerful SaaS platform for managing deployments"`                          |
| **`display_name`**<br />string      | app display name Human-readable name for the application, shown in the installer                                                                                                                        | **Optional**   | `"My SaaS App"`, `"Enterprise Platform"`                                       |
| **`slack_webhook_url`**<br />string | Slack webhook URL Slack webhook URL to receive deployment notifications and updates                                                                                                                     | **Optional**   | `"https://hooks.slack.com/services/YOUR/WEBHOOK/URL"`                          |
| **`readme`**<br />string            | README content Markdown content displayed as README documentation for the application                                                                                                                   | **Optional**   | `"./README.md"`                                                                |
| **`label_colors`**<br />object      | label key color codes Map of label key names to hex color codes for customizing label display in the dashboard                                                                                          | **Optional**   | `"{\"env\": \"#FF5733\", \"region\": \"#33FF57\"}"`                            |
| **`default_labels`**<br />object    | default labels for all installs Labels applied to every install of the app. Values may use the interpolation syntax (\{\{ .nuon.\* }}). These labels cannot be edited or removed on individual insta... | **Optional**   | `"{\"tier\": \"prod\", \"region\": \"{{ .nuon.cloud_account.aws.region }}\"}"` |