Its very niche. This is a static site generator so you could run something a lot heavier and then rsync the output to the server. Even lighter on the server than running bash there.

It is also limited so you might have to add other things. The README suggests using markdown.pl for markdown support.

Bash gets way more hate than it deserves, in ways that are like "this kitchen knife is terrible for cutting down trees!"

Like, yeah, why are you mad? And also, if a dude wants to cut down a tree with a kitchen knife that's actually pretty impressive.