The official rom-rb website.

1. Install gem dependencies:

   bundle install

2. Install node dependencies:

   npm install

   or

   yarn

3. Serve locally at http://localhost:4567:

   bundle exec middleman server

   or build to /build:

   bundle exec middleman build

If you're getting the following error:

Unable to load the EventMachine C extension; To use the pure-ruby reactor, require 'em/pure_ruby'

or features such as Live Reload are not working then it's because the C extension for eventmachine needs to be installed.

gem uninstall eventmachine

take note of the version being used. (At the time of writing '1.2.0.1')

gem install eventmachine -v '[VERSION]' --platform=ruby

If you have a proper environment with DevKit installed then eventmachine with its C extension will be installed and everything will work fine.