Design a Live Streaming Platform

Functional Requirements:

• Users can register, log in, and manage their profiles.
• Streamers can start and stop live video streams.
• Viewers can watch live streams in real-time.
• Real-time chat is available for viewers and streamers during live streams.
• Streams are categorized (e.g., by topic or genre) and searchable.
• Basic content moderation for chat and streams (e.g., filtering inappropriate messages).
• Streamers can see basic analytics (e.g., current viewers, total views).

Non-Functional Requirements:

• The system should support at least 1 million concurrent viewers.
• Video streaming latency should be low (target <5 seconds end-to-end).
• The platform should be highly available (target 99.9% uptime).
• The system should scale horizontally to handle traffic spikes.
• Data privacy and security must be ensured (e.g., encrypted user data, secure video streams).
• The platform should be usable globally, with reasonable performance in major regions.
• System should be maintainable and allow for future feature expansion.