[xhrpost]

I'm not familiar with the OP content but curious about DSLs in web dev. Is there a whole ecosystem of these that I simply didn't know about? Only one that comes to mind is CoffeeScript but that feels long gone at this point. Going to read about your Hyperscript which sounds interesting

[AlchemistCamp]

Templating DSLs are extremely common—JSX, ERB, HEEX, etc.

So are router DSLs as you'll see in Rails, Phoenix and other frameworks. In Elixir, the Ecto query DSL is a pretty big deal as well.

[evilduck]

JSX seems like a pretty common and significant DSL used in JS.