Bitbucket supports kanban boards today. Checkout our integrations page [0]. Two of our partners Comalatech [1] and Transition Technologies SA [2] both built simple solutions that display your Bitbucket issues in a kanban board.

Full disclosure: I'm Head of Product for Bitbucket. LMK if you want to chat, a link to my calendar is in my HN profile.

[0]: https://bitbucket.org/integrations/cloud [1]: https://marketplace.atlassian.com/plugins/com.comalatech.bit... [2]: https://marketplace.atlassian.com/plugins/bucketboard/cloud/...