PlantUML can be integrated with WordPress by using the PlantUML Renderer plugin, as is demonstrated below.
PlantUML diagram encoded in a WordPress post
Stereotyped Deployment Diagram Elements
PlantUML can also be integrated with a wide variety of other tools, including Wikis and forums, text editors and IDEs, programming languages, documentation generators, online editors, and other tools. Specific tools of interest for use by EATSv5 include:
C4 ARCHITECTURE ACME Global Widget Production