Sentinel for Astro + Keystatic is a premium cybersecurity SaaS theme that combines a polished, dark-first design with the simplicity of local-first content management. Built on Astro 5 and Tailwind CSS v4, it delivers enterprise-grade visual quality with zero external dependencies for content editing.

The theme includes Keystatic CMS, which provides a full visual admin panel embedded directly into your site at /keystatic. Every piece of content — from site configuration and navigation to blog posts and pricing tiers — can be edited through an intuitive form-based interface. Changes are saved directly to your project’s JSON and Markdown files, and Astro’s dev server hot-reloads instantly. No database, no API keys, no account signup required.

For teams that need collaboration, Keystatic supports an optional GitHub cloud mode. When configured, content edits are committed directly to your repository, enabling multiple editors to contribute without needing direct file system access. This makes Sentinel ideal for agencies managing client sites or distributed teams that want a CMS without the overhead of a hosted service.

With 13 fully designed pages, 26 reusable components, and 6 pre-written cybersecurity blog posts, Sentinel is ready for production out of the box. The theme targets SaaS companies, cybersecurity firms, and technology startups who need a professional web presence with easy content management.