This is why I left bitbucket:
https://bitbucket.org/site/master/issue/3054/make-bitbucket-...
You could write API integration between the two yourself but it wouldn't be that similar.
Ya, I host a GitLab instance for personal and one for work so I don't really have to deal with GitHub beyond when I am looking for open source projects.
Part of why my profile there is so empty :/
I have plenty of ideas for them…
* allow symlinks in the gh-pages branch
* do not `chmod u+x` every text file in zip archives
* actually support `git-archive`
* make rebasing of PRs easier
* look for a contributor's code in a repo
* when looking at a file, have a link showing current PRs editing it
Cheers
[1]: https://github.com/Sidnicious/gh-pages-symlink-test/issues/4
This will do for now: https://github.com/isaacs/github