This post discusses how to use Jekyll and Jest to maintain a consistent style and tone in a blog, where each author's voice is an important part of the content. The author provides a suite of copy-editor-style tests with Jest for their blog, which is generated by Jekyll. They outline five steps to achieve this: exposing Jekyll data, reporting which posts fail, enforcing a style guide, selectively testing posts, and configuring CI to support modified post tests. The author also shares additional ideas for tests, such as checking for overused phrases or excessive emojis in blog posts. By following these steps, developers can create a robust testing system that helps maintain consistency across their blog content.