Project crystallizer in the form of nested tree todo with drag-n-drop and other bells and whistles. Its goal is to help you when you project grows and you can'

Project crystallizer in the form of nested tree todo with drag-n-drop and other bells and whistles. Its goal is to help you when you project grows and you can't contain it in your head anymore. The ordinary todos didn't worked for me when the projects became brain suckers if you know what I mean. (edit: added description)