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Extremely well I'd say. Nim has a very powerful macro system, and DSLs are very common across various modules. Haven't used Django myself, but something like Jester (https://github.com/dom96/jester) or Karax (https://github.com/pragmagic/karax) is a good place to start if you want to do web development in Nim.

i'd say so: i think many rails/django concepts are translate-able to metaprogramming in nim, not always with the same idioms, but usually there is a way to do it, and you can typecheck some things

I feel DSL-ish ways of Nim are so much more advanced then python.

I have written UI DSLs in Nim, as well as SQL DSLs. Only LISPy languages come close to the level of DSL you can do.

Poorly. Nim is not an object-oriented language.

You could certainly write an expressive web framework in nim, but a django/rails sort of paradigm is not the way.