Very fascinating, a static file blog backed by git is powerful, back by github would allow for a lot of features. I can see the power I get with editing code easily applied to writing with the same usability I get from WordPress or something similar.
> but I liked the idea of keeping an “engineering notebook” as I work.
I've created a site Labradoc (<http://www.labradoc.com/>) that is a low friction way to keep an engineering notebook (or as I call it--a project log). For me it makes a huge difference in being able to keep track of multiple side projects.
You might like to try it out.
Also, thanks for the pointer to the Javascript Markdown parser "Showdown"--I've been wanting to get a Markdown live-preview working for Labradoc and that seems like it could do the job. :)