feat: add quarto support for helix

home/modules/helix.nix

@@ -129,7 +129,31 @@ in
       } // lib.optionalAttrs pkgs.stdenv.isDarwin macKeys;
     };
 
+
+    languages = {
+      language = [
+        {
+          name = "quarto";
+          language-servers = [ "marksman" "harper-ls" ];
+          auto-format = false;
+          comment-tokens = [ "-" "*" ">" ];
+        }
+        {
+          name = "markdown";
+          language-servers = [ "marksman" "harper-ls" ];
+          auto-format = false;
+          comment-tokens = [ "-" "*" ">" ];
+        }
+      ];
+
+      language-server.harper-ls = {
+        command = "harper-ls";
+        args = [ "--stdio" ];
+      };
+    };
+
     extraPackages = with pkgs; [
+      harper
       marksman
       nil
     ];