Show HN: Browser-based light pollution simulator using real photometric data

iesna.eu is a browser-based tool for photometric data analysis and light pollution simulation using real-world data. It leverages Rust, Bevy for 3D rendering, and WebAssembly for client-side execution, allowing users to visualize sky-glow and streetlight effects in urban scenes. The project is open-source on GitHub and Crates.io.