Taking inspiration from the PlantUML C4 templates by Ricardo Niepel, this C4 PlantUML template includes styling similar to that used by the C4 samples and Structurizr, and maintains a close relationship to the PlantUML core syntax.

• C4 and Structurizr styling
• Complementary C4 helpers, build on top of standard PlantUML relationships
• A single include file - simple to reference or modify

Include the line below at the beginning of your PlantUML file, under the @startuml directive:

!include https://raw.githubusercontent.com/robbell/plantuml-c4/v1.4/c4.puml

@startuml Sample Context diagram 
!include https://raw.githubusercontent.com/robbell/plantuml-c4/v1.4/c4.puml

Person("Clinic employee", "An employee of the clinic") as clinicEmployee
System("Pet Clinic Application", "System for managing vet appointments") as petClinicSystem
clinicEmployee ..> petClinicSystem : Uses

@enduml

Source: samples/pet-clinic-sample.puml

Source: samples/entities-sample.puml

To add PlantUML diagram generation to your build pipelines, take a look at my PlantUML in Docker project.

• Style toggling to core PlantUML
• Key toggling
• Continued refactoring
• Additional functions for remaining Context entities, and all other entities at the Container and Component level
• Update current implementations to more closely resemble vanilla PlantUML syntax
• Relationship directions
• Layout helpers using -[hidden]->