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Re:Wekan: An open-source Trello-like kanban by The_Fox on Thursday August 17, 2017 @04:27PM (#15040620)
The product I've been working on the last few months has all the things you listed, mostly: http://cwkanban.com/ . It's been a huge help to my own team's workflow.

But it's not general-purpose like Wekan or Trello; it's focused on workflow for managed IT and at the moment only pulls ticket data from ConnectWise, software for managed services providers.

Re:Wekan: An open-source Trello-like kanban by GordonS on Thursday August 17, 2017 @05:24PM (#15041159)
> all the things you listed, mostly

Not trying to be a dick, but that sounds... kind of weasely.

Re:Wekan: An open-source Trello-like kanban by The_Fox on Thursday August 17, 2017 @06:41PM (#15041729)
I suppose- mostly I'm unsure to what extent "sub-boards for meta issues" makes sense when card data is drawn from an external source, as in our product.