That combined scenario is less common as a single integrated product. I think there are very close approximations but not sure if something proper like that exist yet, like an app builder which is also an Opensea for SaaS (or micro SaaS and even ideas and prototypes). I mean usually i find sites offering the building or the presentation of MVPs but why isn't stuff like cursor or lovable have a section where they present and market the products of their own customers? I've seen it only for pieces of UI to "remix" but not a full catalog of saas "made in the house" yet.