I think the idea of running agents while you sleep isn't going to work until AI can match or exceed human-level agency and intelligence.
Whenever I coded any serious solution as a technical co-founder, every single day there was a major new debate about the product direction. Though we made massive 'progress' and built out a whole new universe in software, we haven't yet managed to find product market fit. It's like constant tension. If the intelligence of two relatively intelligent humans with a ton of experience and complimentary expertise isn't enough to find product-market-fit after one year, this gives you an idea about how high the bar is for an AI agent.
It's like the problem was that neither me nor my domain expert co-founder who had been in his industry for over 15 years had a sufficiently accurate worldview about the industry or human psychology to be able to produce a financially viable solution. Technically, it works perfectly but it just doesn't solve anyone's problem.
So just imagine how insanely smart AI has to be to compete in the current market.
Maybe you could have 100 agents building and promoting 100 random apps per day... But my feeling is that you're going to end up spending more money on tokens and domain names then you will earn in profits. Maybe deploy them all under the same domain with different subdomains? Not great for SEO... Also, the market for all these basic low-end apps is going to be extremely competitive.
IMO, the best chance to win will be on medium and complex systems and IMO, these will need some kind of human input.