I think that finding a profitable business is much more complicated than finding a developer, so I don’t agree with your hypothesis.

As per what you stated, seems that your buyer persona is: founder + no-code developer ONLY + happen to be aligned with someone else project. That is a more constrained target than one might think at first.

Regarding the charging of 99$/y. It does not make a lot of sense in my head because the buyer persona I’ve defined won’t buy much more than one project (it’s him the one contributing to its development after all). So, a yearly subscription sounds weird. The buyer would be subscribing, buying the project and unsubscribing again. A transaction fee sounds much more convenient to me.