> Imagine you're going to build a new SaaS app. Would you think of building it on a headless CMS?

I'm guessing this mostly makes sense for a SaaS that's mostly about serving content to users. I wonder how common that kind of SaaS is, as opposed to a SaaS where the core functionality wouldn't be served well by a CMS, and the administrative tedium that one wants to alleviate mostly has to do with account management, payment processing, enabling or disabling service based on billing status, etc.