Edge computing faces challenges when applications depend on cloud-stored data, as internet disruptions can compromise performance. To mitigate this, edge architectures incorporate data storage and processing on devices themselves, enabling "offline-first" apps that function irrespective of internet connectivity. Peer-to-peer data synchronization further enhances this by allowing direct data exchange between devices without a central server or internet, using local networks like WiFi or Bluetooth. This method is particularly beneficial for environments with unreliable internet, such as restaurants, mobile clinics, airline in-flight services, oil and gas sites, mobile gaming, pop-up events, and industrial manufacturing. Couchbase Mobile offers a comprehensive platform for developing offline-first mobile and edge apps, featuring embedded databases and native peer-to-peer synchronization, which can be explored through their free tier services and sample apps.