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Releases, design notes and guides from the Sumi project.

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1. 
   2026年11月2日 ·约 2 分钟

   Keeping diagrams off the critical path

   A page with one Mermaid diagram used to make readers wait ten seconds on a phone. Here is what we changed, and the numbers before and after.

   Xianpeng Shen performancedesign
2. 
   2026年11月1日 ·约 1 分钟

   Introducing Sumi

   Sumi 0.1 is a local-first documentation theme for MkDocs that keeps your content in plain Markdown and publishes it for people and agents alike.

   Xianpeng Shen releasedesign