View the source code here to fork or just look around
When it’s ready to publish, an amazing software called Jekyll transforms the plain text files into HTML which is hosted and published for free by Github. Amazing, right?
If you know programming, you can make your own similar website easily, over which you have total control. If you have zero programming experience, but you are tech-curious, you can do it. It will take some work. Start here. (Alternately, I could make yours for you.)