A four-state chord diagram drawn in plain SVG — entities on a ring sized by inflow plus outflow, bezier ribbons sized by volume, symmetric pairs or directed arrowheads, a keyboard-walkable ring and an sr-only flow table.
npx shadcn@latest add @zyeon/chart-chordZyeon UI limits how often it can be asked, and Chord Diagram hasn't had its turn. Its source will show here once it has.