It's definitely possible, as the theming for NodeBB is quite flexible. Earlier this year, I started working on a blog-like theme, based off of some designs by Randy M. Daniel: http://www.randydaniel.me/nodebb-theme
I didn't quite get it to the point of publishing it, so if you're interested in picking up where I left off, feel free!
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GitHub - julianlam/nodebb-theme-viridian: Blog-like theme, inspired by Randy M. Daniel
Blog-like theme, inspired by Randy M. Daniel. Contribute to julianlam/nodebb-theme-viridian development by creating an account on GitHub.
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GitHub (github.com)