# Stream Module

• How to add a stream module?
• What goes into a stream module?
• How to define an event?
• How to define large events?
• How to append tags to an event?
• What are event-tags and how to use them?
• How to archive events?
• How to mark an event past?
• How are events stored in db?
• How to run a remote projection?
• How to replicate an event stream at a remote machine?
• How to configure the stream db?
• How to ensure indices of stream db?
• Event timeline?
• How to upgrade or upcast an existing event?
• What is a stable number in event-sourcing system?
• Various commands available?