One of the main devs from SecureScuttleButt is working on something called Unwalled Garden [0] which is very similar to this but decentralized (you can host your site from your home computer and other people can seed it so it's still available when your computer is turned off).

If you have a few friends who will seed your page for you out of the goodness of their hearts, I imagine your site will have pretty good uptime without anyone having to buy a VPS.

[0]: https://unwalled.garden/