How to make Haskell Language Server read the cabal dependencies as a comment in the script?

[TheOddler]

Your environment

Which OS do you use?
NixOS 22.11

Which version of GHC do you use and how did you install it?
9.0.2 installed using nix

Which LSP client (editor/plugin) do you use?
VS Codium+vscode-haskell

Which version of HLS do you use and how did you install it?
1.8.0.0 installed using nix

Have you configured HLS in any way (especially: a hie.yaml file)?
No

What's wrong?

I was trying to use haskell to write some small scripts, by adding a shebang at the top of the file and de dependencies as a comment at the top of the file, like this:

#! /usr/bin/env nix-shell
#! nix-shell -i cabal -p ghc cabal-install

{- cabal:
build-depends:
  , base ^>= 4.15
  , elm-syntax
-}

import Language.Elm.Expression as Elm

main :: IO ()
main = do
  putStrLn "Hello"

If I then make the file executable (chmod +x ...) it runs as expected (showing Hello).

However, in my editor (VS Code) I get the error Could not find module ‘Language.Elm.Expression’.

Is there a way to tell the Haskell Language Server to read those build-depends in the comment at the top of the file?
I'm not sure what to call that comment, so Googling didn't help, but probably just because I don't know what to call it.

[fendor]

Hi! Thank you for this bug report!

The answer is, unfortunately: currently not all without resorting to some hacks
Relevant issue: #111

[fendor]

Closing in favour of #111 to avoid duplication. Feel free to reopen, if I am missing something

[TheOddler]

Thank you! I'll follow #111.