Comment by battery_cowboy

I intend to use this setup, modified a bit, it's pretty much just what I was looking for: a very modular static generation tool that still uses a language I can read easily before generation, even if it isn't a 100% standard/stock language.

I was running into issues where some feature idea I had (ex: a way to expire an article based on some "code", like a function to check if Debian 10 is EOL yet in an article on how to install Debian 10) wouldn't be supported by my static generator, so I wanted to write my own or fork it, but instead I can just write modules for metalsmith or markdown-it for different features I need, it's perfect.