@strypey@liamdiprose@hobs Yes, that's the Wikibooks I was referring to. I think right tool depends on your intended community of authors. If they were all, say, mathematicians or computer scientists, then LaTeX + Git could be a great solution. If you instead want people to collaboratively right about history, then it would probably be a terrible solution, because they would find it too opaque. What is your intended community of collaborators?
As for git, given that even many programmers complain about how opaque and complex it can be, it's not a tool that I would spring on anyone without a programming or math background, personally.