/develop

Event sourcing in Elixir and Phoenix uses Commanded Aggregates to handle commands and events, LiveView for interactive UI, PostgreSQL for data storage, and SVG for canvas rendering to structure the application architecture.

LiveView interacts with an SVG canvas using a Two-Level Sync pattern, enabling real-time collaborative canvas rendering for designing information systems directly within the Phoenix application without heavy JavaScript.

Organize Commanded code by separating Aggregates for command handling and event enrichment, LiveView modules for SVG canvas interaction, and PostgreSQL projections for data storage, following structured development patterns.

Testing strategies for Elixir event sourcing applications focus on verifying Commanded Aggregate behaviors, validating event enrichment logic, and ensuring LiveView SVG canvas interactions function correctly through established code quality practices.

Yes, the EventModeler application uses PostgreSQL for data storage, supporting the Commanded event sourcing framework to persist events and manage state for the collaborative canvas application built with Elixir.

The best way to implement event enrichment in Elixir is using the Commanded framework's Aggregate patterns, which allow you to structure command processing and event generation cleanly within Phoenix and LiveView architectures.