dregil: Update config

flake.nix

@@ -132,7 +132,7 @@
       nixOnDroidConfigurations.default =
         with inputs;
         nix-on-droid.lib.nixOnDroidConfiguration {
-          pkgs = import nixpkgs-droid {};
+          pkgs = import nixpkgs-droid { };
           modules = [
             ./hosts/redmi
             { nix.registry.nixpkgs.flake = nixpkgs-droid; }
@@ -145,29 +145,12 @@
           system = "x86_64-linux";
           pkgs = import nixpkgs { inherit system; };
         in
-        pkgs.haskellPackages.shellFor {
+        pkgs.mkShell {
           inherit (self.checks.${system}.pre-commit-check) shellHook;
 
-          packages = p: [
-            p.xmonad
-            p.xmonad-contrib
-          ];
-
-          withHoogle = true;
-
-          buildInputs = with pkgs; [
-            haskellPackages.haskell-language-server
-            haskellPackages.fourmolu
-            haskellPackages.hspec-discover
-            haskellPackages.doctest
-            haskellPackages.xmonad
-            haskellPackages.xmonad-contrib
-            cabal-install
-            ghcid
+          packages = with pkgs; [
             nixfmt-rfc-style
             nil
-            hpack
-            hlint
           ];
         };
     };