Data – mara.dev

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Canvas charts in twelve lines. Responsive, accessible and dark-mode ready, with no D3 learning curve.

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Offline-first sync for IndexedDB with conflict resolution you can actually reason about.

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Canvas heatmaps for dense matrices, with colour scales that survive an accessibility review.

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A client-side cache with request deduplication and revalidation, in five kilobytes.

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Atomic state with derived values and no provider component anywhere in sight.

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Audio waveform rendering and region selection, decoded off the main thread.