Naive state management + syntax check works!

package.json

@@ -14,8 +14,7 @@
     "monaco-editor": "^0.36.1",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
-    "react-scripts": "5.0.1",
-    "typescript": "^4.9.5",
+    "react-scripts": "^5.0.1",
     "web-vitals": "^2.1.4"
   },
   "scripts": {
@@ -44,7 +43,13 @@
     ]
   },
   "devDependencies": {
+    "@rollup/plugin-typescript": "^11.0.0",
     "@types/filesystem": "^0.0.32",
-    "@types/node": "^18.15.6"
+    "@types/node": "^18.15.6",
+    "rollup": "^2.79.1",
+    "ts-loader": "^9.4.2",
+    "tslib": "^2.5.0",
+    "typescript": "^5.0.2",
+    "webpack-cli": "^5.0.1"
   }
 }