Since long, i logged in to Bitbucket again. I found out, after missing my Username & PW that it is possible to use the Github login for Bitbucket too.

Now it is so easy to bring a Git to one of this platforms. If you want to work on an Project where is not on Github; Bitbucket, etc. for example, you just can import it.

>> Import to github
>> Import to Bitbucket from Github (Use link button in dashborard)
>> Import to Bitbucket (general import)

If you are using the Contao Extention Repository, do not forget to mention the Platform and Username you are using. It simplifies the process of getting a pull request.