@Priscilla: Thx for the kudos, glad you liked the plugin.
As for Bones, it appears that it already bakes in most of the goodness this plugin adds, though, of course, there are a few variations. There are things in Bones that this plugin doesn’t add, and vice-versa (my IE conditionals around the <html> are a little more robust than the standard HTML5 Boilerplate, but Bones adds a few more <meta> tags than my plugin does, etc.).
The same goes for Roots, plus Roots offers CSS grid support that my plugin doesn’t touch…
The real audience, I think, for this plugin, is people that already have a functioning theme, but want to add these features, without having to crack open the PHP files. If you are preparing to build a new site with a new theme, I would probably go with something that already has all this backed in.
Cheers, and thanks again,
Atg