I want to build a mesh network with approximately 512 nodes. It should operate in non-router mode when there is no router, and connect to the router and access the internet when one is available. In both cases, the network should be able to self-heal. I believe ESP-WIFI-MESH can be used with the ESP-MDF framework, but this framework seems quite old. Is there any issue with using it? If you don't recommend it, would it make more sense to use ESP-NOW in SoftAP+STA mode or ESP-MESH-LITE directly? What would you suggest? I looked into OpenThread, but it requires certification, and it seems an additional device acting as a transceiver is also necessary. Is there really no other alternative? For now, ESP-WIFI-MESH seems like a good option. I'll be happy to work with you, but please clear up this confusion
