If you know what you want you could write a trivial script which just pushes a Markdown file through pandoc(unless you just write html), concatenates it with th

If you know what you want you could write a trivial script which just pushes a Markdown file through pandoc(unless you just write html), concatenates it with the files for the header and footer (& maybe an inlined stylesheet) and appends a link to the index file. The result will be the same but applying changes on all pages is a matter of seconds. Nothing against a lightweight stack, but simplicity doesn't necessarily have to exclude functionality.