Comment by dwaite

I don't know if I would say it is easy as much as I'd say it is automated. I manage configuration changes to some hardware using git, and do manual backup. However, someone else came out with a script that will automate periodic commits to a GitHub account, and automates the setup.

I have a linux distribution which gives the option to allow login via a set of GitHub usernames, and will enable so by downloading each account's public SSH keys.

I don't use either of these, I don't think the second is even a good idea, but can get why its popularity and price has caused deeper integration into products. Other network backup services or login infrastructure does not have the same level of ubiquitous API nor a relevant free tier.