High-Level Architecture Mermaid

The [mermaid] macro is a standalone macro and it cannot be used inline. Click on this message for details.
This macro generates standalone content. As a consequence you need to make sure to use a syntax that separates your macro from the content before and after it so that it's on a line by itself. For example in XWiki Syntax 2.0+ this means having 2 newline characters (a.k.a line breaks) separating your macro from the content before and after it. Three-Layer Architecture - Clean separation of concerns: Interface Layer (user interactions), Processing Layer (AKEL + background jobs), Data Layer (PostgreSQL primary + Redis cache + S3 archives). Background scheduler configured by system administrators.