feat: add typesafe environment variables

.env.development

@@ -1,3 +1,7 @@
+# Database
+DATABASE_URL=file:next-js-boilerplate.db
+
+# Clerk authentication
 NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY=pk_test_bGlnaHQtbGFicmFkb3ItNTEuY2xlcmsuYWNjb3VudHMuZGV2JA
 CLERK_SECRET_KEY=your_clerk_secret_key
 

drizzle.config.ts

@@ -1,10 +1,16 @@
+/* eslint-disable-next-line import/no-extraneous-dependencies */
+import dotenv from 'dotenv';
 import type { Config } from 'drizzle-kit';
 
+dotenv.config({
+  path: '.env.development',
+});
+
 export default {
   out: './migrations',
   schema: './src/models/schema.ts',
   driver: 'libsql',
   dbCredentials: {
-    url: 'file:next-js-boilerplate.db',
+    url: process.env.DATABASE_URL ?? '',
   },
 } satisfies Config;

next.config.js

@@ -3,6 +3,7 @@ const withBundleAnalyzer = require('@next/bundle-analyzer')({
   enabled: process.env.ANALYZE === 'true',
 });
 
+/** @type {import('next').NextConfig} */
 module.exports = withBundleAnalyzer({
   eslint: {
     dirs: ['.'],