First, if you haven’t already, clone the Hedwig repository. If you don’t know how to use Git, Atlassian has some nice tutorial here.

Next, install Ruby and Bundler. I won’t go into installing Ruby here, because it varies greatly by operating system, but macOS and many Linux distributions ship with it. To install bundler, you can use RubyGems.

$ sudo gem install bundler

You can then use Bundler to install dependencies.

$ bundle install

You can then start a development server with Jekyll.

$ bundle exec jekyll serve