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+# Firebase client library usage
+
+Firebase provides SDKs for both client-side application development and
+server-side administrative tasks.
+
+For a full list of Firebase client libraries and links to their documentation
+and GitHub repositories, see https://firebase.google.com/docs/libraries
+
+## Mobile and web client-side SDKs
+
+The Firebase client-side SDKs allow direct interaction with Firebase services
+from a mobile or web app. These SDKs are available for iOS (Swift and
+Objective-C), Android (Kotlin and Java), Web (JavaScript), Flutter (Dart),
+Unity, and C++.
+
+-   For **web apps**, Agent Skills for Firebase provide guides to get started
+    with the JavaScript client SDK. Install these skills by running:
+
+    ```bash
+    npx -y skills add firebase/agent-skills -y
+    ```
+
+-   For **native iOS or Android mobile apps**, see the documentation to get
+    started:
+
+    -   **iOS**: https://firebase.google.com/docs/ios/setup.md.txt
+    -   **Android**: https://firebase.google.com/docs/android/setup.md.txt
+
+-   For **Flutter apps**, see the documentation to get started:
+
+    -   **Flutter**: https://firebase.google.com/docs/flutter/setup.md.txt
+
+-   For **Unity and C++ mobile apps**, see the documentation to get started:
+
+    -   **Unity**: https://firebase.google.com/docs/unity/setup.md.txt
+    -   **C++**: https://firebase.google.com/docs/cpp/setup.md.txt
+
+## Server-side Admin SDKs
+
+The Firebase Admin SDKs provide privileged access to Firebase services from a
+server environment. These SDKs are available for Node.js, Java, Python, and Go.
+
+For details about Firebase Admin SDKs and getting started, see
+https://firebase.google.com/docs/reference/admin.md.txt and
+https://firebase.google.com/docs/admin/setup.md.txt