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The landing page content

This directory will contain the landing page and other documentation for It will contain links to the Hack user documentation over at and other relevant places. will be hosted on GitHub pages.


See for details on how to add or modify content.

Run the Site Locally

The requirements for running a GitHub pages site locally is described in GitHub help. The steps below summarize these steps.

If you have run the site before, you can start with step 1 and then move on to step 5.

  1. Ensure that you are in the root directory of the repo (i.e., the same directory where this exists). The below RubyGems commands, etc. must be run from there.

  2. Make sure you have Ruby and RubyGems installed.

    Ruby >= 2.2 is required for the gems. On the latest versions of Mac OS X, Ruby 2.0 is the default. Use brew install ruby (or your preferred upgrade mechanism) to install a newer version of Ruby for your Mac OS X system.

  3. Make sure you have Bundler installed.

    # may require sudo
    gem install bundler
  4. Install the project's dependencies

    # run this in the 'docs' directory
    bundle install

    If you get an error when installing nokogiri, you may be running into the problem described in this nokogiri issue. You can either brew uninstall xz (and then brew install xz after the bundle is installed) or xcode-select --install (although this may not work if you have already installed command line tools).

  5. Run Jekyll's server.

    • On first runs or for structural changes to the documentation (e.g., new sidebar menu item), do a full build.
    bundle exec jekyll serve
    • For content changes only, you can use --incremental for faster builds.
    bundle exec jekyll serve --incremental

    We use bundle exec instead of running straight jekyll because bundle exec will always use the version of Jekyll from our Gemfile. Just running jekyll will use the system version and may not necessarily be compatible.

    • To run using an actual IP address, you can use --host=
    bundle exec jekyll serve --host=

    This will allow you to use the IP address associated with your machine in the URL. That way you could share it with other people.

    e.g., on a Mac, you can your IP address with something like ifconfig | grep "inet " | grep -v

  6. Either of commands in the previous step will serve up the site on your local device at or http://localhost:4000.

Updating the Bundle

The site depends on Github Pages and the installed bundle is based on the github-pages gem. Occasionally that gem might get updated with new or changed functionality. If that is the case, you can run:

bundle update

to get the latest packages for the installation.