I want a static site generator that
- Lets me write in Markdown, but with some syntax for injecting HTML I can't express in plain Markdown, like Hugo's shortcodes
- Has a good pipeline for writing CSS in SASS, Javascript in Typescript, and ideally minifying / importing those assets into the page in different ways (i.e. inline OR linking) with low friction
- Has a good templating language that I can configure on a per-page basis, customize (to add new functions / constructs), and import data to from YAML