m1 gold with nest thermostat or alexa?

Hey guys.  I've had the m1 for 8 years and will bring it to our next home in a month.  Using the search function it appears that no one utilizes a nest and I've never had a thermostat that does anything smart so could you give me some guidance on what I should aim for?  
 
Also, I see that nest is controllable by Amazon alexa.  Is there anyway that amazon dot or echo can interact with my M1?
 
 

Alexa works with Homeseer which has an excellent plugin for the Elk.


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