some backend stuff and getting fe to build

backend/.eslintrc.js

@@ -0,0 +1,33 @@
+module.exports = {
+    "env": {
+        "browser": true,
+        "es2021": true
+    },
+    "extends": [
+        "eslint:recommended",
+        "plugin:@typescript-eslint/recommended"
+    ],
+    "overrides": [
+        {
+            "env": {
+                "node": true
+            },
+            "files": [
+                ".eslintrc.{js,cjs}"
+            ],
+            "parserOptions": {
+                "sourceType": "script"
+            }
+        }
+    ],
+    "parser": "@typescript-eslint/parser",
+    "parserOptions": {
+        "ecmaVersion": "latest",
+        "sourceType": "module"
+    },
+    "plugins": [
+        "@typescript-eslint"
+    ],
+    "rules": {
+    }
+}

backend/package.json

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+{
+  "name": "backend",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "@types/express": "^4.17.21",
+    "@typescript-eslint/eslint-plugin": "^7.1.1",
+    "@typescript-eslint/parser": "^7.1.1",
+    "eslint": "^8.57.0",
+    "typescript": "^5.3.3"
+  },
+  "dependencies": {
+    "express": "^4.18.3"
+  }
+}

backend/src/app.ts

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+import express from 'express';
+const app = express();
+const port = 3000;
+
+app.get('/', (req, res) => {
+  res.send('Hello World!');
+});
+
+app.listen(port, () => {
+  return console.log(`Express is listening at http://localhost:${port}`);
+});

backend/tsconfig.json

@@ -0,0 +1,11 @@
+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "esModuleInterop": true,
+    "target": "es6",
+    "moduleResolution": "node",
+    "sourceMap": true,
+    "outDir": "dist"
+  },
+  "lib": ["es2015"]
+}