Use MarkDoc for MD extention

[tomByrer]

MarkDoc is doing the same thing as your "Markdown extensions", but is built by a major corp & has Astro support.

[tipiirai]

Yeah. I'm aware of MarkDoc

[tipiirai]

The reason I chose not to use MarkDoc is that it is not focused on content enough. You have the possibility to inject programming constructs and HTML inside the content file, which does not fit into the core philosophies of Nue: separation of concerns and progressive enhancement.