Sequence diagrams are perfect for postmortems: they show what happened in order and where time went. Learn Mermaid features for modeling timeouts, retries, fan-out, async queues, and mitigations like circuit breakers and cached fallbacks.
Go past “boxes and arrows” with Mermaid flowcharts. Learn subgraphs, layout tricks, reusable styling with classDefs, meaningful edge labels, link types, and a real-world deploy + drain example you can reuse in future posts.
Mermaid lets you turn plain text into clean, versionable diagrams that live right alongside your docs and code. In this post we walk through the basics of Mermaid flowcharts and show how to embed them in your blog or documentation, with practical examples you can copy and paste.
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