I used this tutorial which honestly isn't that beginner-friendly or explicitly Haskell-centric. But I did find it to hit a lot of functional coding points I missed coming from imperative style, notably the common mechanism of transforming foreach and condition-terminated loops into expressions.

Install Homebrew.

Install the Haskell Stack:

brew install haskell-stack

Install Visual Studio Code. Launch it.

Type ⇧⌘P to bring up the command palette, then type to run Shell Command: Install 'code' command in PATH.

Quit VS Code.

Use code mess-with-haskell.code-workspace to open the project. Install recommended extensions.