Not only do they now force you to have a Google account and Google Assistant (via Android or Google Home) to take full advantage of your Nest now, but they also pretty much gutted the API in the name of "privacy." Ironic.

I was looking to play with my historical data to try and figure out how my two heating and cooling systems were interacting, but that data is no longer available to non-grandfathered developers. The only way to access my own data from my super-technologically-advanced-device-owned-by-Google is by ordering a dump of CSV files.