The Share as Gist plugin allows users to share their Obsidian notes as GitHub Gists, offering options for both public and private sharing. It supports GitHub.com and GitHub Enterprise Server, enabling users to create, update, and delete Gists directly from Obsidian. The plugin includes features like automatic updating of Gists when notes are edited and customizable settings to include or exclude front matter in shared content. Additionally, it offers secure handling of GitHub personal access tokens, ensuring minimum required permissions for enhanced security.