Pour homekit je n’en sais rien les miennes n’etant pas compatible homekit.
Par contre oui tu peux te passer du cloud si tu le souhaites c’est juste plus complexe à mettre en place d’après ce qu’en dit la doc.
Meross LAN
This homeassistant integration allows you to control your Meross devices in a very flexible way. Despite it's name (at the origin this was a project to only support local LAN connectivity) it now supports these communication layers:
direct HTTP connection (in LAN) for any reachable device
local MQTT broker (the one configured in HA)
Meross cloud MQTT brokers
These are the two main use cases:
Keep your devices paired with the offical Meross App (and cloud infrastructure) and communicate directly to them via HTTP. This will allow for greater flexibility and less configuration pain since you don't have to setup and configure the MQTT pairing of these devices. The integration will just 'side-communicate' over HTTP (or cloud MQTT) to the devices and poll them for status updates. Starting with release Cloudy (4.0.0) it is also able to communicate over the original Meross cloud account infrastructure by using the 'public' Meross MQTT brokers.
Bind your devices to your 'private' MQTT broker so to completely disconnect them from the Meross infrastructure and interact only locally (The procedure for MQTT binding is here: https://github.com/bytespider/Meross/wiki/MQTT or better, you can use the pairer app from @albertogeniola at https://github.com/albertogeniola/meross_pair). Private MQTT binding could prove to be a pain though (see the discussion here)
HAVE FUN! 😎