Now that Microsoft has acquired GitHub at 7.5 bil $ (only lower than LinkedIn and Skype), we might think about moving/backup the Git repositories !
BitBucket provides nice import:
https://befused.com/git/github-bitbucket-move
Or GitLab alternative:
https://docs.gitlab.com/ee/user/project/import/github.html
(self-host in Vietnamese: https://techmaster.vn/posts/34100/huong-dan-cai-dat-gitlab-tren-private-server )
That’s it.
./.