On remote Unix, Linux, or MacOS machines the public key needs to be placed into a file called ~/.ssh/authorized_keys file using your favorite text editor. There can be multiple public keys in the ...

Why switch to Linux? More security, more privacy, and freedom from vendor lock-in. And these distributions are as simple to install and use as MacOS or Windows.

Also: How to connect Linux and Android - and why you should Along with the development environment in this new terminal, there's a big bonus for the ride.