I found Fedora is terrible at documentation, or at least around rpm-ostree they are. It has made learning more of a struggle than necessary. I think the basics are that there is some sort of container image builder that can work from a manifest, then some way to create a distro out of a container image. All of the content I can find is fragmented across many sites and not complete enough to actually use. Extremely frustrating.
Fair call. In any case I think you'll find things moving towards bootc and away from having to know rpm-ostree at all. The bootc documentation for fedora is pretty good and the Universal Blue project has built some awesome distros that use bootc.
