Bootstrap UI framework based CMS

A CMS that sits on top of Citygate

Allows you to sync web content on Dropbox with a Ruby-based CMS

Pluggable, portable, framework-friendly static site generator. Setting the Stage for the Ruby CMS.

Use Notion as a CMS (Content Management System) for your Hugo site

A modular opinionated CMS based on Sinatra and Mongoid, in the works..

Tencent Cloud Ruby SDK is the official software development kit, which allows Ruby developers to write software that makes use of Tencent Cloud service CMS.

ShinyCMS is an open-source CMS built in Ruby on Rails, with support for themes, plugins, and cloud hosting. (There is also a Perl version: www.github.com/denny/ShinyCMS)

Railsyard - One Ruby on Rails CMS to rule them all!

Rails Simple User Messaging System, work also with Refinery CMS

cutting edge cms, blog, wiki, forum ...