add haskell specific packages

flake.lock

@@ -16,26 +16,9 @@
         "type": "github"
       }
     },
-    "nixpkgs-unstable": {
-      "locked": {
-        "lastModified": 1756542300,
-        "narHash": "sha256-tlOn88coG5fzdyqz6R93SQL5Gpq+m/DsWpekNFhqPQk=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "d7600c775f877cd87b4f5a831c28aa94137377aa",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "root": {
       "inputs": {
-        "nixpkgs": "nixpkgs",
+        "nixpkgs": "nixpkgs"
-        "nixpkgs-unstable": "nixpkgs-unstable"
       }
     }
   },

flake.nix

@@ -36,7 +36,12 @@
           packages = with pkgs; [
             gnumake
             bear
+
             gcc
+            ghc
+
+            haskell-language-server
+            ormolu
           ];
 
           shell = "${pkgs.bash}/bin/bash";