I see people showing off a Raspberry pi 3, or an espHome device running something they are using to trigger wake word and voice commands for HomeAssistant seemingly remote from their main HA system. I presume also how the echo thing works, but can’t find any articles on how to set it up on my Raspberry PI 3s I have laying around.
I’m sure I’m just not searching the right terms, but if anyone can point me to something that would be great.