You are absolutely right! There is a trade-off. Some tags are easier in Markdown (e.g. bold, italic, inline code and a few others). But you cannot extend markdown with your own custom elements can you?
Sundown by itself is not that useful. It gets really useful when you use it as a preprocessor for your own custom HTML tags.
Here I explain how you can create your own server-side HTML tags:
This seems to be aiming for completely different goals though.
People use markdown as a text and word formatting system that is readable in plain text and easily transforms into HTML.
The the main point you are driving to people in this thread are the custom tags which goes against the plain text readability and adds extra complexity in this scope. You are competing against HTML preprocessors that are primarily used for that reason - to be converted into fully fledged HTML. Markdown is not in this scope by any means.
Image tag in Sundown is easier than Markdown:
Or how about embedding a tweet: Or, youtube, user sign-up form and more...You are absolutely right! There is a trade-off. Some tags are easier in Markdown (e.g. bold, italic, inline code and a few others). But you cannot extend markdown with your own custom elements can you?
Sundown by itself is not that useful. It gets really useful when you use it as a preprocessor for your own custom HTML tags.
Here I explain how you can create your own server-side HTML tags:
https://www.sunsed.com/manual/creating-tag
Again, Sundown is just a HTML preprocessor you can write all of the above tags like this: