Starting a new project, should we use Mern.io or Next.js?

Is Mern.io still being actively maintained, or did all the attention shifted to Next.js? Last Mern commit dates back to Oct 6 while Next.js is a few hours ago... Next.js seems to compile a lot faster and the minimalistic approach lets you focus on your app easier with close to no configuration, though Mern seems to be more production ready and CSS Modules & PostCSS are not possible with Next.JS What do you think?