We've been using GitHub for 6-months now and have more/less figured out "best practices" with regards on how to put in tasks, milestones, etc. However, from a management point of view, there are a few features that are lacking. For instance, Gantt Chart capabilities found in solutions such as RedMine, or even overlaying on top of a calendar tasks/milestone markers, roadmaps, etc.
Is there some sort of "add on" or 3rd party website that can hook into GitHub and generate these for me? Since we've already integrated so much within GitHub, I'd like to stay on it, but if a migration to another system is possible with the functionality we require, I may be willing to transfer.
Any advice/help would be greatly appreciated!
Answer
I started a project which does exactly that :
https://github.com/neyric/gh-issues-gantt
It only handles issue durations in days, but we found it to be easier to maintain and quite accurate for our usage.