This example visualizes the classic Iris dataset as a scatterplot, mapping sepal length to the x-axis and petal length to the y-axis. It serves as a starter template demonstrating a decoupled React and D3 integration pattern for scalable projects. The visualization uses D3 v7 scales and axes for rendering, while React manages component structure and data loading via the `useData` hook. Data is loaded from a CSV file using `d3.csv`, and points are drawn as semi-transparent circles using SVG.