A year ago, Jekyll sites on GitHub pages gained access to repository and organization metadata with the introduction of the site.github namespace.

We recently moved our own site.github implementation to use the community-driven GitHub metadata Jekyll plugin, meaning it’s now easier to preview sites locally that rely on repository or organization metadata using the exact same process GitHub Pages uses to build your site in production.

To recreate the site.github namespace when previewing your site locally, assuming you’re using the GitHub Pages gem, simply add the jekyll-github-metadata gem to your site’s config:

gems:
 - jekyll-github-metadata

For more information on using repository and organization metadata, when previewing locally or on GitHub Pages, see the plugin and repository metadata documentation.