The static site generator that started the modern static web movement: plain text and templates become a complete site with no database or server-side code to break or be breached. It has powered GitHub Pages since 2008.
The Preservation Rating scores how well this entry is archived — not how good the software is. It's calculated automatically from what's already on this page: working mirrors, documentation, a reproducible build, a clearly identified license, and complete metadata. Nothing here is entered by hand; it updates itself whenever the entry changes.