At a recent Fosdem conference, the discussion centered around the innovative use of Couchbase Mobile in conjunction with IoT technologies like beacons and peer-to-peer (P2P) synchronization. Beacons, which emit signals using Bluetooth LE, are highlighted for their utility in retail environments and events, such as supermarkets and music festivals, to notify users of promotions or gather crowd data. Couchbase Mobile enhances these applications by enabling offline data storage and synchronization, ensuring functionality even without an internet connection. Additionally, the potential for automatic P2P synchronization between devices using Couchbase Lite was discussed, although technical limitations prevented a live demonstration. The conference itself was praised for its organization and reliable Wi-Fi, underscoring the importance of connectivity in large-scale events.