Author / OP here. athena started as a pet project for my personal blog; in the process I thought of releasing it publicly as well. I simply like Tufte CSS. athena's a great playground to experiment with ET's ideas and SSGs while incorporating my personal Pandoc (academic and casual) publishing workflow. My main goal was to create one workflow to write plain text docs and be able to publish to PDF via LaTeX (Tufte layout or not,) HTML (same,) slides, letters, &c without (or with minimal) changes in document structure. In any way, you're more than welcome to pull request a new, non-Tufte CSS layout.
