Nitro Kit

Audience: Rails developers evaluating or installing Nitro Kit.

Nitro Kit is a gem-owned Phlex UI system for Rails. The 2.0.0.alpha.4 prerelease is under active testing and is not stable.

Install

Pin the prerelease:

gem "nitro_kit", "2.0.0.alpha.4"

bundle install
bin/rails generate nitro_kit:install
bin/rails nitro_kit:doctor

Commit Gemfile and Gemfile.lock. Before upgrading, review the changelog, run bundle update nitro_kit, rerun the installer, and test the application. Production applications should use a released gem with a committed lockfile.

Start with:

• Rails integration
• Component contracts
• Customization
• Browser support
• Nitro Kit 1.x migration
• Coding-agent guide

Nitro Kit targets maintained evergreen browsers from roughly the previous two years, with Mobile Safari as a first-class target. See the browser support policy for exact fallback behavior.

Maintaining Nitro Kit 1? Its frozen documentation remains at v1.nitrokit.dev.

License

Nitro Kit uses the custom NitroKit License.