You are right. But apart from deploying GitHub projects directly, it can be used to host a self sufficient website like utopian.io. with custom urls. You can also deploy steemit bots with it.
And this is just the tip of the Iceberg. You can do so much more with it that its insane.
Try the tutorial out and am here to solve any questions you may have !!
I will definitely research this more. I have used my laptop for a bot for some time now, it would be great to have it back for its original purpose.