Privacy Policy

1. Introduction

Welcome to Build Your Library ("we," "our," or "us"). This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our service that syncs Xiaohongshu (小红书) content to Google Drive for use with NotebookLM.

2. Information We Collect

2.1 Google Account Information

When you sign in with Google, we receive your:

• Email address
• Name and profile picture
• Google Drive access token (to create and manage files in your Drive)

2.2 Xiaohongshu Cookies

To access your Xiaohongshu favorites and liked content, you provide us with your Xiaohongshu session cookies. We use these cookies solely to fetch your saved content.

2.3 Content Data

We process the content you've saved on Xiaohongshu, including text, images, and video thumbnails, to sync them to your Google Drive.

3. How We Use Your Information

We use the information we collect to:

• Authenticate you and provide access to our service
• Fetch your Xiaohongshu favorites and liked content
• Process and transform content using AI (Gemini) for better organization
• Sync processed content to your Google Drive
• Improve our service and user experience

4. Data Storage and Security

Your data is stored securely using Google Cloud services:

• User profiles and preferences: Google Firestore
• Synced content: Your personal Google Drive
• Temporary processing: Google Cloud Storage (auto-deleted after processing)

We implement industry-standard security measures to protect your data, including encryption in transit and at rest.

5. Data Sharing

We do not sell, trade, or rent your personal information to third parties. We may share information only in the following circumstances:

• With Google services (Drive, Vertex AI) to provide our core functionality
• When required by law or to protect our rights
• With your explicit consent

6. Your Rights

You have the right to:

• Access your personal data
• Delete your account and all associated data
• Revoke Google Drive access at any time
• Update or correct your information

7. Cookies

Our service uses cookies for authentication purposes. The Xiaohongshu cookies you provide are encrypted and stored securely, used only for content fetching.

8. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date.

9. Contact Us

If you have any questions about this Privacy Policy, please contact us at:

Email: privacy@build-your-library.tech