Explore cloud-connected low-power device management using open-source solutions in this 36-minute conference talk. Discover how Zephyr's built-in CoAP and LWM2M clients integrate with Eclipse Leshan, Californium, and other open-source projects for efficient device management at scale. Learn about CoAP and LWM2M standards, and compare two architectures: one based on cellular LPWAN solutions (LTE-M/NB-IoT) and another on Matter/Thread for smart home thermostats. Understand how ecosystem, certification, and network topology influence the implementation of these Zephyr-based systems, despite their similar cloud-connected low-power wireless nature.