Right now, a new interactive fiction editor/authoring system is released every two days. Don't ask me why. Maybe BC of Vibe Coding. I've done a fairly advanced editor myself (Kinexus - it's free, can be found in my profile). But adding music, images, video and speech etc. is not super welcome in the very conservative interactive fiction community, which mainly consists of writers and readers. So, it is very much about reading and writing text, and not so much about designing immersive gaming experiences. But I seriously doubt there is any money in any sort of classic cyoa/interactive fiction today. So, if you want to do it, then do it for the fun of doing it. Don't expect it to grow into a somewhat decent income at all.