This is an aspect of a very important movement that started with Calm Technology. Think it will be the next step in gaining control of the genie from the bottle.

[1] https://calmtech.com/

[2] https://www.amazon.com/Calm-Technology-Principles-Patterns-N...

>> "start small and focused"

I'd even go as far you say, use an existing platform like Amazon's Alexa with their hardware to start.

Reading a books like "Calm Technology" and books on lean startups would be good too.

Books: http://www.amazon.com/Calm-Technology-Principles-Patterns-No...

http://www.amazon.com/Running-Lean-Iterate-Works-OReilly/dp/...