Ask HN: How do you back up your personal website?

So, I just did something stupid and destroyed the VM for my personal website. I have all of my data on my laptop so I can push it back up, but configuring it is a bit of a pain. This isn't anything terribly critical, so I don't need any great backup system or anything. I just want something that will make it easier for me to get back up and running in case I do something stupid like this. How do you guys handle this?