Here's a concise summary of the MeshCore article:

MeshCore is a free and open-source C++ library designed for creating resilient, decentralized wireless mesh networks using LoRa radios. It’s ideal for embedded projects requiring multi-hop packet routing, particularly in situations where internet connectivity is unavailable. Key features include support for devices like Heltec, RAK Wireless, and XiaoS boards, low power consumption, and pre-built example applications for use cases like off-grid communication, emergency response, outdoor activities, and IoT applications. It’s easily deployable through PlatformIO and offers a self-healing network without needing a central server.