Currently, you can control the following devices with Home & Away
Routines in the Home app. This list of devices will continue to grow to
include other devices that are compatible with Google Assistant over
time:Nest thermostatsNest camerasNest doorb...
I have the exact same question. Bought nest mini but i can't see the
option "presence detection" in home app settings. Would like to play
some music on google nest when arriving home without verbal command