When you first set up your Home device you are advised to link it to your nominated Google Account which it will then use to provide more meaningful answers to questions concerning personal things like entries in your Calendar. However if more than one person wishes to access their own personal information then it is necessary to set up multiple accounts.
Click here to read a HowToGeek article that tells you how to go about setting it for two to six different users.
The facilities provided 'out of the box' are great, but if you are feeling adventurous, have some spare time, and fancy getting your hands dirty, then read on.
Click here to learn how to create [abbreviated] custom voice commands in a great HowToGeek article.
Click here to read another on the same topic from CNET
Click here to read an article by ChromeUnboxed about creating your own hotword to substitute the default triggers Ok Google or Hey Google that come with the devices. The facility is not yet available [as at April 2018] but as the article was produced in Feb 2018 hopefully it will not be too long before it is released globally via an automatic firmware update.
Click here to learn how to create IFTTT Shortcuts
Click here to discover more about IFTTT Applets
Click here to learn more about IFTTT Services
Click here for just one example 'IFTTT Recipe' that logs your battery low condition to a spreadsheet
More and more devices [a.k.a. 'things'] are coming to the market that can be connected to your home network, and the internet, and controlled in a variety of ways.
For example Smart Switches - click here to read more.
Click here to read about a hack to create some more complex voice controlled actions.
Click here to read how your device can be set up to print {in some limited situation} to HP printers etc. [to be expanded ?]
Click here to read an XDA-Developers article that introduces the use of the Tasker App for automation - ranging from the basic to more sophisticated programming
Click here to learn how to turn your devices into a 'white noise' machine for relaxing