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I keep running into brick walls trying to find a simple roadmap/kanban tool that:

1) Is Open Source
2) Isn't GitHub
3) Supports public sharing or embedding
4) Bonus: can be self-hosted

Context: I'm creating a roadmap for @Linux4Everyone and I want it to be public.

I was hoping @nextcloud Deck would fit the need, but sadly it doesn't have a public sharing option, otherwise it would be perfect.

Any ideas out there?