Quil
Quil is a Clojure library for creating interactive graphics and animations, built on top of the Processing framework. It provides a functional programming interface for generative art, data visualization, and creative coding projects. Developers use Quil to write expressive, live-coding-friendly applications that run on the Java Virtual Machine (JVM).
Developers should learn Quil when working on creative coding, data art, or interactive installations in a Clojure environment, as it simplifies graphics programming with a concise, immutable API. It's ideal for rapid prototyping of visual experiments, educational tools for teaching programming concepts visually, or building artistic applications that benefit from Clojure's REPL-driven workflow. Use cases include generative art sketches, real-time data visualizations, and interactive simulations.