To be honest this librebox project looks kinda fishy to me. Seems like the author never used version control before. They put everything into one commit [1] and are making changes to the repo using the Github web UI. I wish the dev the best of luck but I wouldn't be surprised if this project gets abandoned in a few months
[1] https://github.com/librebox-devs/librebox-demo/commit/e70ea3...