NextCloud is a home-based cloud solution (on your server or on a raspberry-pi or a server at "home"). Like a DropBox + Google Contact + Agenda + …, but with privacy and more space (as it's on your own disks).

Even if Authy is attached to your phone number, you are still able to activate it on your second phone while receiving the SMS code on your first mobile ;)

I guess I need to write some day about these things on SteemIt too…
Your article will be a motivation to spend the time on that! ;)