Architecture Diagrams

Turns system architecture into code using Mermaid and PlantUML instead of dragging boxes around in diagramming tools. Covers the usual suspects: C4 models, sequence diagrams, data flows, deployment views, component relationships. The text-based approach means your diagrams live in version control alongside your code, which actually matters when architectures evolve and you need to track what changed. Includes reference implementations for common diagram types and pushes you toward conventions like subgraphs for grouping and color coding that means something. The main discipline here is keeping diagrams focused on one aspect rather than cramming everything into a single unreadable mess.