I had 3 that were supposed to be a progression, the first one turned out to be infinite, the other two fell by the wayside. Got another two, one of them is a going concern, the other one has been on and off, I am planning to get some support for it and make a public deliverable.
(It seems to my usual state that I have 3 side projects with some commitment, 1 is always active, maybe another, one is always languishing.)