I was thinking of spinning op a Docusaurus v2 for a while. But was annoyed by the forced markdown editing for my team mates who are not devs. Gitbook is okay alternative, but forces you to pay per user. But just decided to go for gitbook now, it's basic plan is actually ok.

I understand your careful approach, but I would just set pricing for now, at the moment I don't want to invest all the time of setting up docs and then you having it shut down.