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modules/home/development/languages/haskell.nix

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+{
+  lib,
+  config,
+  pkgs,
+  ...
+}:
+
+with lib;
+let
+  cfg = config.modules.haskell;
+in
+{
+  options.modules.haskell = {
+    enable = mkEnableOption "haskell";
+  };
+
+  config = mkIf cfg.enable {
+    # Development packages
+    home.packages = with pkgs; [
+      haskell.compiler.ghc948
+      (haskell-language-server.override { supportedGhcVersions = [ "948" ]; })
+    ];
+
+    # VSCode configuration
+    programs.vscode = {
+      profiles.default = {
+        extensions = with pkgs.vscode-extensions; [
+          haskell.haskell
+          justusadam.language-haskell
+        ];
+
+        userSettings = {
+          "[haskell]" = { };
+          # "haskell.formattingProvider" = "fourmolu";
+        };
+      };
+    };
+
+    # Neovim configuration
+    # programs.nixvim = { };
+  };
+}