I built it in Next.js with Clerk for sign-in, Supabase for data, Stripe for payments and Resend for email. Members get a dashboard with video lessons, module quizzes, a timed final exam drawn from a 200-question pool, certificates, ebooks and receipts. Behind it is an admin back office for members, orders, cohorts, waitlists, support tickets and course access. The site is live and has had 300+ updates since May.