Python docstrings are extremely suitable to be folded, and folding docstrings makes Python code cleaner. This can be achieved in Neovim without plugin, just with built-in foldexpr and tree-sitter.
It requires some effort to make Neovim work pleasantly with Julia, especially the formatting part. But it's possible with null-ls and precompiling.
It's known to all that compiling is hard. Just record it.