Is there a comparable kanban project manager that uses github issues? I would migrate to github projects, but last I'd checked some key features were missing f

Is there a comparable kanban project manager that uses github issues? I would migrate to github projects, but last I'd checked some key features were missing from github projects: 1. New issues are added to the backlog column by default. 2. Epics, or anything that allows one issue to have multiple sub-issues. 3. The ability to label one issue as blocking another by using keywords, eg: blocks #123 or requires #321. Is there a simple way of solving these with probot or github actions? [probot]: https://probot.github.io https://probot.github.io [github actions]: https://github.com/features/actions https://github.com/features/actions