Take a look at https://www.tducret.com/pure-markdown
It's just a single JS script import, and then plain Markdown.
You can host it as-is, no build required (à la Jekyll, Hugo...).
This is nice. I have used https://ndossougbe.github.io/strapdown/ to quickly throw out MarkDown files for people to see as rendered HTMLs. I love the cleanliness of your script. Thanks.
You can verify the content with : curl https://www.tducret.com/pure-markdown/