- https://nivo.rocks/heatmap/ - https://github.com/airbnb/visx/tree/master/packages/visx-heatmap - https://commit-analyzer.vercel.app/contributions - https://github.com/techniq/github-commit-analyzer/blob/master/src/routes/contributions.svelte#L178-L199 - https://observablehq.com/@d3/the-impact-of-vaccines
