For example, if I want to collaborate on making a (non-computer related) textbook with someone, and we want to use git as a version control system. Should we use github/codeberg for this or is there a platform that’s more suitable for using git in nontechnical contexts?
Specifically for writing textbooks, you might enjoy looking at https://www.americanyawp.com/ for inspiration. Their documentation is light on technical details but you could email the contacts at the bottom of https://www.americanyawp.com/text/about/ with questions about how to structure your specific project.
This seems like a good resource thanks for sharing