You don't have to use Github if you don't want to, but you do have to use Git. We've had more than a few producers successfuly produce ebooks without using GitHub or Google Groups.
> We've had more than a few producers successfuly produce ebooks without using GitHub or Google Groups.
Can you share or document how? https://standardebooks.org/contribute suggests that "Technically inclined readers can produce ebooks themselves" but doesn't provide any point of entry to do so other than a link to the GitHub org, and "No technical experience is necessary. Contact the mailing list if you want to help." just links to the Google Group.
