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+# Zitadel
+
+Follow these steps to integrate **Zitadel** with **Pangolin SSO** using OpenID Connect (OIDC).
+
+## 1. Prerequisites
+
+These instructions assume you have a working Zitadel organization and project setup already.
+
+You need to configure an application in Zitadel:
+
+1. Open an existing project and in `Applications` click `New`:
+    1. Set the name to something memorable (eg. Pangolin)
+    2. For `Type of application` choose `Web`
+    3. For `Authentication Method` choose `Code`
+    4. Leave `Redirect URIs` blank for now
+    5. When you click create, you'll be shown the `ClientSecret` and `ClientId`. Make sure to save these somewhere secure - you won't be able to see the Client Secret again.
+2. Click `Token settings` then change `Auth Token Type` to `JWT` and check the `User Info inside ID Token` box finally hit `Save`
+3. Open `URLs` and make note of:
+    - `Authorization Endpoint`
+    - `Token Endpoint`
+
+## 2. Configure an Identity Provider in Pangolin
+
+In Pangolin, go to `Identity Providers` and click `Add Identity Provider`:
+
+1. Set the name to something memorable (eg. Zitadel)
+2. In the `OAuth2/OIDC Configuration` section, fill the following fields:
+    1. `Client ID`: You should have the value for this from the Zitadel setup earlier
+    2. `Client Secret`: You should also have this value
+    3. `Authorization URL`: Use `Authorization Endpoint` from earlier
+    4. `Token URL`: Use `Token Endpoint` from earlier
+    3. In the `Token Configuration` section, set `Identifier Path` to `preferred_username`
+
+When you're done, click `Create Identity Provider`.
+
+Now copy the Redirect URL displayed in the `General Settings` section.
+
+## 3. Complete the setup in your Zitadel application
+
+Lastly, you need to edit your `Redirect Settings` in your Zitadel application. Add the URL you copied to the `Redirect URIs`, then hit the `+` button and finally `Save`.
+
+## 4. Ready to Test!
+
+The configuration is now complete. If you've configured a user (see below), try logging in!
+
+## User Configuration in Pangolin
+
+:::note
+
+Username Configuration:
+- Use the `Preferred login name` value from Zitadel as the username
+- While Zitadel provides a `sub` claim in the JWT that matches the numeric user ID in Zitadel, we recommend using the preferred username for better user management and readability
+:::
+
+To create a user in an Organization, set the following:
+
+- `User Type`: `External User`
+- `Identity Provider`: The name you set for the identity provider (we'll assume `Zitadel` here)
+- `Role`: Whatever role you want to give the user
+
+The other fields are optional.
+
+