We built a desktop study app around Codex CLI as the local AI runtime

I am Mattia, a computer engineering student at Politecnico di Milano. We built Get It during a hackathon and then open-sourced it. The app turns a dense PDF into a visual study path. It keeps the document in the center, detects concepts that deserve a visual explanation, then generates diagrams, 3D scenes, animations, charts and formulas next to the original page. It also includes chat, flashcards, quizzes and a Feynman-style mode backed by a concept graph. The OpenAI part is the reason I am posting here.