I'm currently using Astro for that. You can write the pages in markdown, html or one of the many js frameworks. It also allows you to mix them.
By default it generates static websites with out any js, but it allows you to add js where needed. Optional server side features are wip, if you decide to need them later on.
They also have pre made themes on their website if you don't feel like writing css.
An alternative would be to boot into the bios and shut down from there