Leaving aside the discussion about fav lang, One of great additions is this PR, [Fixed “RFC: improving JavaScript FFI” (#4873)](https://github.com/nim-lang/Nim/issues/4873)
Not to underestimate other stdlibs, improving JavaScript FFI should yield practical purpose, unrelated to whether people like JavaScript or not. `jsffi` module is very nice lib There's also [bitops](https://github.com/nim-lang/Nim/blob/devel/lib/pure/bitops.nim) module.