If you mean Vella, the upcoming serial fiction platform, yes. I am writing a story specifically for that. It is actually more of an open-ended story with recurring characters, like a television show. Basically, a sci-fi sitcom.
I have written six episodes, but who knows when that will go live. Amazon won’t set a date. Just, “In the next few months.” 🙄
I figure it is worth a try, since it is new. If it doesn’t work out, the story will probably end up on my newsletter also.