In my country (Holland) that is not allowed. One should operate the cancel button on the device itself.
What if a faulty flow, or a Homey hickup, silences the alarm before someone can hear it. Or thinks all’s safe, because the alarm shut “by itself”…
For Nest Protect:
you should be able to use it with the Google Nest SDM app
It’s available in the community store, only there’s some maintenance going on for a while now, so you’ll have to wait for it to finish
https://homeycommunity.space/store/com.verbem.nest
