How does DAI make money?

Could you please elaborate on how DAI generates revenue? I'm particularly interested in understanding the mechanisms behind its profitability. Does it rely on transaction fees? Or does it have other streams of income? Also, how does the stability of its pegged value impact its earnings? Could you please break down the economics of DAI for me in a way that's easy to understand? I'm trying to get a grip on its business model and how it sustains itself in the cryptocurrency ecosystem.