There's a lot of ground to cover, so I thought I'd better say something up front about how I see this emerging.
Firstly, I plan to break this up into digestible chunks.
Secondly, my time is quite limited so this will be a gentle long distance jog, not a sprint. I'll try to get out a post in this series every week or so.
It looks like the biggest body of work will be posts about function, or outcomes that you might be seeking, and some of the tools I've come across that help achieve those outcomes.
By the way...another quick addition to the "What this is not" list...
This is not any attempt at an exhaustive list of writers tools! I wouldn't be that pretentious (I hope). All I can offer are things I've heard of in my very short time as an amateur writer. I would very much appreciate any additions you'd like to share in the comments as we go.
In between these posts, I'll slip some thoughts about the other aspects I mentioned. Personal preferences, scalability, and a few other things.