Gist is a Ruby gem (package) that allows users to interact with the Gist service provided by GitHub from within Ruby programs. It allows users to create, read, update, and delete gists through the GitHub API, and includes features such as support for authenticated requests, pagination, and error handling. The Gist gem is maintained by GitHub and is available for users to install and use in their own Ruby projects through the RubyGems package manager. The RubyGems website provides documentation, installation instructions, and other resources for users who want to use the Gist gem in their projects. You can install gist using tea today!