Nautilus is a block theme for content management systems, aimed at developers and site builders who want to design custom websites using a block-based approach. It provides a foundation for creating modern, flexible layouts without relying on traditional theme structures.

• Block-based design: Enables visual editing with blocks for posts, pages, and custom templates, allowing users to assemble layouts directly in the editor.
• Sass integration: Uses Sass for styling, with commands to compile per-block stylesheets and the main style.css file, making CSS management more efficient.
• Experimental features: Includes cutting-edge functionality for testing new CMS capabilities, though it's recommended for cautious use due to its developmental nature.
• Development tools: Offers npm scripts for building styles, watching changes, and creating theme zip files, streamlining the workflow for customization.
• Minimal dependencies: Requires only the core CMS version 6.5 or higher, keeping setup simple and focused on block functionality.