Kanban Kanban

Hey everyone! I’m working on a project called Kanban Kanban — a recursive Kanban board where any card can open into its own Kanban (like Russian dolls for tasks and projects). It is probably easier to visualize by checking out the landing page at kanbankanban.com I’m still validating if this solves a real pain point though, so would love any feedback. The idea came from struggling with large tasks and tiny tasks sitting side by side on the same board, which then do not move for weeks. Really, these shouldn't be on the same "layer", and should instead be classified as a "project" (a collection of tasks). And then projects can be collected together as "goals". Like how Epics/Stories work in Jira. So the core idea behind Kanban Kanban is to bake this structure in from the start. Instead of handing you a blank canvas, we start with a Kanban board, and each new card added to it is a container for another layer of Kanban boards. This way you can go as deep or keep things as shallow as you like. Would Kanban Kanban be useful to you? Any obvious flaws? If validation goes well, I am also open to connecting with potential technical co-founders to help build this. Thanks!