Architecture as Code or How to Survive Legacy and Keep Your Sanity
summary
Describes using Architecture as Code to recover and document a chaotic legacy monorepo system built by six teams over four years, starting with C4 diagrams and producing service documentation, ERDs, and sequence diagrams. Explains how the team rebuilt system understanding and created architectural transparency and synchronization using tools like PlantUML and Mermaid, emphasizing practical approaches for survival and architectural evolution in legacy chaos.
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chapters (20)
- 0:00Introduction
- 1:30Traditional docs problems
- 3:36Need for Architecture as Code
- 6:51Tool selection
- 8:32Diagram tool comparison
- 10:17C4 model approach
- 13:27Scaling importance
- 16:17Documentation to create
- 18:06Task estimation with diagrams
- 21:38Architect's decision role
- 23:42Sequence diagrams benefits
- 26:53Team communication impact
- 28:59ADR issues in Confluence
- 31:07Onboarding benefits
- 32:33Team role of Architecture as Code
- 36:07Documentation responsibility
- 37:33Demo with Fumadocs
- 39:20Future with AI
- 41:05Summary
- 42:31Q&A
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