This bar chart displays the number of users for the top 50 software applications, using horizontal bars ordered by application name. Built with React and D3 v5, it renders as an SVG with scales from `scaleBand` and `scaleLinear`. The code imports data via `d3.csv` from a GitHub-hosted CSV file, formats tick labels with `d3.format`, and creates reusable axis and mark components that handle the visual encoding.