Put the 4-minute clip on YouTube, but the full lesson on Nostr. Simples. Spam YouTube with adverts, but keep the complete content on Nostr

https://www.youtube.com/watch?v=wz6Byt9b4cE

https://blossom.primal.net/be8eaa3c81ac49dae0db814c35cdfd7d39c1927146c0cede3e696c2ec80999d9.mp4