This webapp manages the digital content of the SolarSPELL device, an inexpensive device that provides textbooks to schools without access to internet or electricity. I led a team of graduate students to produce an app designed to handle a hundred thousand content items. It's built with React frontend, Django backend, and PostgreSQL database. We used redux along with rxjs to build a frontend architecture that easily handles this project's complex state. It includes OAuth client flow login and a permission system that differentiates students and admins.