One cockpit for every site you run.

A multisite, static-first CMS for organizations that publish more than one website, with a drag-and-drop page builder, roles you edit from the admin, and a plugin and theme system that keeps the core generic.

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How it is built

Example sites

GitHub

Multisite by design

Every site resolves by its own domain. Content, media and users are scoped per site, so an editor assigned to one site cannot see or change another.

Roles you edit in the admin

A Super Admin creates and reshapes roles in the UI, with no code change and no deploy. Access fails closed, so anything not granted is denied.

Block-based page builder

Compose pages from typed blocks and check them in Live Preview at mobile, tablet and desktop widths before publishing.

Per-site themes and branding

Each site picks a theme at runtime. Logo, colors, fonts, navigation and footer are edited per site in the admin.

Plugins you drop in

Add a folder, restart the CMS, and it is live. Remove one and nothing its users created is lost. Polysite runs without any.

Simple to operate

One VM, Docker Compose, Caddy with automatic HTTPS, versioned images and a deploy script that backs up first and rolls back by itself. No Kubernetes required.