For those who don't want to visit X:

    Most people's mental model of Claude Code is that "it's just a TUI" but it should really be closer to "a small game engine".
    
    For each frame our pipeline constructs a scene graph with React then
    -> layouts elements
    -> rasterizes them to a 2d screen
    -> diffs that against the previous screen
    -> finally uses the diff to generate ANSI sequences to draw
    
    We have a ~16ms frame budget so we have roughly ~5ms to go from the React scene graph to ANSI written.