Simon Brown

@simonbrown

Creator of the C4 model for visualising software architecture and Structurizr | Author of “The C4 Model” (O’Reilly, released summer 2026)

Jersey, Channel Islands

Pinned
Simon Brown
@simonbrown
Jun 15
My C4 model book is complete and printed copies should start appearing in a few weeks! 🎉
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Simon Brown
@simonbrown
Sep 5
From Reddit: "I wanted my agent to draw architecture diagrams for me. Mermaid and PlantUML both had me arguing with a layout engine about where a box goes, and with C4 I spent more time on modeling questions (is this thing a container or a component) than on the system I was
4
Simon Brown
@simonbrown
Sep 4
A final reminder that the Structurizr cloud service will be shutdown at the end of September - please export your workspaces before then if you would like to retain them. Migrating to the new Structurizr local (Lite equivalent ... docs.structurizr.com/local) or server (on-premises
docs.structurizr.com
local
Documentation for the Structurizr tooling.
Simon Brown
@simonbrown
Sep 2
I've had my copies for a few weeks now, and it looks like orders are being shipped with more regularity now. 🎉 I hope you find the book useful!
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Simon Brown
@simonbrown
Aug 27
🙈 … yup, no need to look at the code any more, I’m sure it will be fine. (that was a joke, BTW)
David Flanagan
@rawkode
Aug 20
Why are coding agents and harnesses all trying to show us diffs? Show me C4 diagrams, test scores, and BBD scenarios. Code is dead.
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