I think the focus on examples and common configs is quite good. As I see it, properly understanding the design of the tool should be documentation provided by

I think the focus on examples and common configs is quite good. As I see it, properly understanding the design of the tool should be documentation provided by the tool itself, since that keeps it in sync with changes. I do think what would be useful is 1 article explaining the different bits of how Linux fits together (or just point to articles). I think something explaining the how the various composition points (e.g. filesystems, boot loaders,daemons and periodic jobs etc.) fit together would be quite useful.