This is the Jekyll source of the mruby.org website.
The following will give you a preview of the site.
Install bundler:
gem install bundler
Clone the repository:
git clone https://github.com/mruby/mruby.github.io
Install Jekyll and its dependencies:
cd mruby.github.io
bundle install
Preview the site:
bundle exec jekyll serve
open "http://localhost:4000"