The blog post offers a detailed walkthrough of installing Couchbase Sync Gateway on macOS as part of the Couchbase Mobile stack series. Sync Gateway acts as a secure web gateway application, enabling secure data replication between Couchbase Server and Couchbase Lite with various APIs. The author provides step-by-step instructions for downloading, unpacking, and running the Sync Gateway using example configuration files, requiring a basic understanding of NoSQL and Couchbase. It also explains how to verify the installation using command line tools like curl and accessing the administrative interface through a web browser. The post is part of a series aimed at helping users get familiar with the entire Couchbase Mobile stack, offering additional resources and insights into working with Sync Gateway from the command line in future posts.