Couchbase for mobile was first released in 2014 as the industry's first NoSQL mobile database for offline-first applications, and its core tenets align with those of edge computing: speed, availability, scalability, and data privacy and security. Couchbase Lite is a full-featured embedded NoSQL JSON database that supports local storage and sync capabilities, while Sync Gateway securely handles bidirectional data synchronization between clients and the backend Couchbase Server database. Edge computing involves distributing data storage and processing closer to where data is generated, with three architectures: edge at the client tier, edge at the intermediate tier, and a hybrid model combining both tiers. Couchbase fits into these models as either the cloud tier or an intermediate tier, depending on deployment needs, offering benefits such as 100% app availability, real-time responses, upstream bandwidth savings, and data privacy. The choice of architecture depends on factors like use case, client/compute capabilities, and concurrent edge devices/data centers.