Simon Willison • 1/22/2026

Quoting Thariq Shihipar

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The article discusses the technical architecture of Claude Code, arguing it should be viewed as a small game engine rather than just a TUI. It details a pipeline that constructs a React scene graph, layouts elements, rasterizes to a 2D screen, diffs against the previous screen, and generates ANSI sequences, all within a tight ~5ms budget per frame.

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#React #performance optimization #Terminal UI
Quoting Thariq Shihipar

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