Fly through agalaxy of subjects.

Lumen Frontier is the front-end of the Lumen learning project. It gives you two interfaces over the same study material: LumenOS, a drag-and-drop dashboard of study widgets, and Lumenverse, a Three.js space where each subject is a planet you fly to as a tethered astronaut.

npm install, then npm run dev:frontend on localhost:3000. Astro 4 static output, React 18 islands, and Three.js r180, with no secrets needed to run it.