This fork visualizes daily average air temperatures in Belgium from late 2017 to late 2021 as a smooth line chart. The SVG rendering uses React with D3 v7, employing `scaleTime` and `scaleLinear` for axes, `line()` with `curveNatural` for the path, and data fetched via D3’s `csv` from a Gist. A pale gray grid and labeled axes frame the temporal trend.