It solves the Usecase, where not all BT(LE) devices in the house are reachable from the main HA, and you need remote "pickups" for their signals, and then want to integrate them back into the "master instance". It also solves a bunch of other problems, like integrating some sensors of the HA of your holiday home into the HA of your main home.
It solves the Usecase, where not all BT(LE) devices in the house are reachable from the main HA, and you need remote "pickups" for their signals, and then want to integrate them back into the "master instance". It also solves a bunch of other problems, like integrating some sensors of the HA of your holiday home into the HA of your main home.
The author describes the rationale better here: https://github.com/home-assistant/architecture/issues/246
For some reason, NabuCasa doesn't want to integrate it. Maybe they see it as competing with an own upcoming (cloud?) solution of their own?