Save progress?

Is there a way to save progress in LearnGitBranching? I will assume that there isn't this possibility, to limitate the usage of the backend and evitate to handle users, account etc. At the same time, I feel that if there will be more tutorials, I want the possibility to save my progress in the board. I think that it's easy to provide at least a "save" that can be exported and then imported. I don't know if it's appropriate, but also giving the possibility to log in with an account for a cloud storage provider and save the progress there. Is it a stupid idea?