One of the things I have been doing recently is capturing documentation as I go.
When you are deep in a project, you figure out things that are not well documented anywhere. The problem is, if you do not write it down while it is fresh, you forget it... or you have to rediscover it later.
So I started keeping a GitHub repository where I capture notes and reference documents as I work. The idea is simple: write it down now, publish it later. The source lives in the repo, and from there it can be published to development.guide, neuhub.org, federatedhub.org, or wherever else makes sense.
It is just getting started, but it is public and contributions are welcome.
#^https://github.com/WisTex/Development-Guide-Docs