Calling ADHD Writers!

I’m trying to figure out if there are any writing groups or communities for people with ADHD (or just chaotic creative energy) where you can post part of a story and someone else writes the next chapter.

Kind of like fanfic round-robins, but not limited to fanfic. I love writing, but I’m terrible at sticking with longer projects, so a collaborative setup sounds way more fun and doable.

Does anything like this exist? Subreddits, random websites—anything. And if not… would anyone even be into starting something like that?