nuxpress is the result of me reading through VuePress's source code for a week. It doesn't have blogging support yet, so I set out to try and cook something up with it. I learned a lot reading through Evan's code, but my feeling is that VuePress goes to great lenghts to replicate Nuxt's functionality for automatically setting up and launching a Vue app.
While I see the value of having vuepress as a standalone CLI tool and
everything it does that Nuxt doesn't (e.g., all SEO-friendly publishing tweaks),
for me really its golden feature is streamlining Markdown in Vue files.
Now, I really like Nuxt's code organization standards. Having a blog as
a Nuxt app makes sense, as it would give me total freedom for customization.
VuePress's eject command gives you a similar functionality, but you miss
the multitude of plugins and Nuxt-oriented solutions out there.
So instead of trying to add blogging support to VuePress, I decided to add Markdown blogging support to a Nuxt app with the minimum amount of code and conventions I could possibly manage.