I have just completed the "Learning the Basics" and "Creating a Microblog" tutorials on @fedify. The Fediverse is very complicated. However, building the example application with Fedify is much simpler, and the tutorial was really good, with lots of examples and explanations of the basics. If you want to check it out, here's the link: https://fedify.dev/tutorial/microblog.
Thank you for creating it, and please consider following @hongminhee!