Digital Kanban boards are vital to teams that use the visual Kanban project management technique and employ boards to collaborate and organize their work. Which tools are available (at the start of 2021) and what features do they offer?
We are particularly interested in the following aspects:
- Is the product free for open-source projects on GitHub?
- Does it offer support for "Work-In-Progress" limits for individual table columns?
- Does it use GitHub issues as the backend, i.e. is the Kanban board view synced with GitHub's issues?