For backups, I would recommend Restic. The author mentions Tarsnap, and if you don't want to back up five terabytes that is probably great, but after a few gigabytes it's just not economical for private persons. If you're on hacker news (i.e. the 'engineer' the author was talking about), odds are that storing a hard drive connected to a raspberry pi at your parents' and using Restic as client is an extremely cheap way of backing up many terabytes securely.