For example, you can add a new source block to your Gemfile that uses GitHub Packages only for the packages you specify, replacing GEM NAME with the package you want to install from GitHub Packages and OWNER with the user or organization that owns the repository containing the gem you want to install. If the github-pages gem on your computer is out of date with the github-pages gem on the GitHub Pages server, your site may look different when built locally than when published on GitHub. Instantly publish your gems and then install them.Use the API to find out more about available gems. Hi! Install the Tests target. Alternatively, installing the GEM Library from source can be useful for development purpose. The :github shortcut used above is one of Bundler’s built in git sources. gem install specific_install gem specific_install -l