How does Maker Dao make money?

Could you elaborate on the financial mechanism behind MakerDao's profitability? Specifically, how do they generate revenue through their decentralized platform and the various tools and services they offer, such as the Dai stablecoin and the Collateralized Debt Positions (CDPs)? Are there any fees or interest rates involved, and how do these contribute to their overall financial health? Additionally, how do they manage risks associated with market fluctuations and maintain the stability of the Dai peg?