I finally got around to something that's been on Tutorbook's Roadmap for some time now: creating comprehensive and centralized developer documentation.
I've known for some time now that I would need such documentation in order to contract help for our open source web app; but I haven't had the time or resources to get around to it until now.
While our documentation is definitely still a work in progress and is being constantly updated and improved (i.e. every time we release a new package version), I'm pretty satisfied with how it turned out initially.
Check it out at https://tutorbook.app/docs and let me know if you want to help out on the development side of things!