Ruby here means the production server runs the application through a Rack-compatible app server such as Puma, usually behind a reverse proxy, with gems installed by Bundler. The host has to support Ruby applications and not only files. A record carries this value when its documentation requires Ruby on the production server. Ruby tools that only build pages carry static files instead. Ruby on Rails is an example, and Bridgetown carries both values because it can build a static site or run a server.
7 projects need Ruby to host, listed alphabetically. Mostly web frameworks, content management systems and APIs and backends, of 6 categories in all. 77 records do not record this field, and cannot appear here either way. For 206 the question does not apply. Counts only projects with momentum; the full list has the rest.
A
- Active Record
Object-relational mapping library for Ruby that maps classes to database tables, distributed as part of Rails.
C
- Camaleon CMS
Content management system for Ruby on Rails, distributed as a gem and run inside a Rails application.
D
- Devise
Authentication solution for Rails based on Warden, with modules for sign-in, registration, confirmation, password recovery and account locking.
H
- Huginn
Self-hosted system for building agents that watch the web and incoming events and take automated actions on the user's behalf.
R
Ruby on RailsRuby web application framework with an ORM, routing, ERB views, background jobs and built-in deployment tooling.
S
- Sinatra
Ruby DSL for building web applications with a small set of route definitions, run on a Rack server.
Spree CommerceOpen-source commerce platform built on Ruby on Rails, with a REST API, TypeScript SDKs and a Next.js storefront.
Which of these is best?
No idea. We list software, we don't rate it. Open the records that look close and compare them side by side.