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A simple yes/no decision flow — the classic Mermaid starting point.
Core user authentication schema with profiles and sessions.
OAuth2 token exchange between client, auth server, and API.
Full lifecycle of a web request from browser to database.
Global desktop browser usage share as a pie chart.
Two-week sprint with design, development, and QA phases.
Quarterly product roadmap with milestones.
Orders, products, and customers for an online store.
E-commerce order lifecycle from placement to delivery.
Classic finite state machine — traffic light cycle.
OOP inheritance example with abstract base class.
ETL process showing data ingestion, transformation, and loading.
Feature branch workflow with PR merge and hotfix.
High-level breakdown of a web app project.
Key milestones in a startup's growth story.
Feature backlog plotted by impact vs effort.