When you launch Arq for the first time, Arq asks you to enter your backup destination.
Choose 'Google Drive' and click the button to grant Arq access to your Google Drive account:
Alternatively, you could back up to
Just click the pop-up button to change from "Google Drive" to a different option, and fill in the relevant fields.
Once you've added your destination, Arq will ask what you want to do next:
Click "Set Up Backups". You'll be asked to choose a password that Arq will use to encrypt your data before uploading it. Write that password down! Without it, you won't be able to restore your files to a new computer.
Arq will back up your home folder to your destination, excluding log files and other temporary files. This is the best choice for most people.
If you'd like to back up additional folders, you can add them to Arq as well.
You can also back up to more than one destination. See the advanced configuration section for more information on that.