If you want a remote backup of your private git repos, a la Github but free, there are 3 options I know of.
- BitBucket. Has unlimited free private repos, but sets limits on the number of collaborators. Also lacks issue tracking.
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GitLab. Has unlimited free private repos, WITH free issue tracking that is very similar to how Github works.
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DIY. Host it yourself! Except you have to pay for hosting. So there’s that.
I’m using GitLab for my Ultra Top Secret projects right now. So far so good! Their interface is a little rougher than GitHub, but more than workable.