✨ setup env

.eslintrc.json

@@ -1,11 +1,12 @@
 {
   "extends": ["next/core-web-vitals", "next/typescript", "prettier"],
-  "plugins": ["check-file"],
+  "plugins": ["check-file", "n"],
   "rules": {
     "prefer-arrow-callback": ["error"],
     "prefer-template": ["error"],
     "semi": ["error"],
     "quotes": ["error", "double"],
+    "n/no-process-env": ["error"],
     "check-file/filename-naming-convention": [
       "error",
       {

next.config.mjs

@@ -1,3 +1,10 @@
+import createJiti from "jiti";
+import { fileURLToPath } from "node:url";
+
+const jiti = createJiti(fileURLToPath(import.meta.url));
+
+jiti("./src/env/server.ts");
+
 /** @type {import('next').NextConfig} */
 const nextConfig = {
   experimental: {

package.json

@@ -11,12 +11,15 @@
   },
   "dependencies": {
     "@nextui-org/react": "^2.4.6",
+    "@t3-oss/env-nextjs": "^0.11.1",
     "@tabler/icons-react": "^3.16.0",
     "framer-motion": "^11.5.4",
+    "jiti": "^1.21.6",
     "next": "14.2.9",
     "next-themes": "^0.3.0",
     "react": "^18",
-    "react-dom": "^18"
+    "react-dom": "^18",
+    "zod": "^3.23.8"
   },
   "devDependencies": {
     "@trivago/prettier-plugin-sort-imports": "^4.3.0",
@@ -27,6 +30,7 @@
     "eslint-config-next": "14.2.9",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-check-file": "^2.8.0",
+    "eslint-plugin-n": "^17.10.2",
     "postcss": "^8",
     "prettier": "3.3.3",
     "prettier-plugin-tailwindcss": "^0.6.6",

src/env/server.ts

@@ -0,0 +1,18 @@
+import { createEnv } from "@t3-oss/env-nextjs";
+import { ZodError, z } from "zod";
+
+export const env = createEnv({
+  server: {
+    NODE_ENV: z.enum(["development", "production"]),
+  },
+  onValidationError: (error: ZodError) => {
+    console.error(
+      "❌ Invalid environment variables:",
+      error.flatten().fieldErrors
+    );
+    process.exit(1);
+  },
+  emptyStringAsUndefined: true,
+  // eslint-disable-next-line n/no-process-env
+  experimental__runtimeEnv: process.env,
+});